diff --git a/core/src/main/java/com/github/drinkjava2/jdialects/TableModelUtils.java b/core/src/main/java/com/github/drinkjava2/jdialects/TableModelUtils.java
index 6794db2310471be9d866b27ddadca5241218f8da..6c1312a2c47f4fb102a06bad21c7644374f408de 100644
--- a/core/src/main/java/com/github/drinkjava2/jdialects/TableModelUtils.java
+++ b/core/src/main/java/com/github/drinkjava2/jdialects/TableModelUtils.java
@@ -16,8 +16,11 @@ import java.io.File;
 import java.io.FileWriter;
 import java.sql.Connection;
 import java.sql.SQLException;
+import java.util.Collection;
+import java.util.HashSet;
 import java.util.Map;
 
+import java.util.Set;
 import javax.sql.DataSource;
 
 import com.github.drinkjava2.jdialects.model.TableModel;
@@ -25,11 +28,20 @@ import com.github.drinkjava2.jdialects.model.TableModel;
 /**
  * This utility tool to translate Entity class / Database metaData / Excel(will
  * add in future) file to TableModel
- * 
+ *
  * @author Yong Zhu
  * @since 1.0.5
  */
 public abstract class TableModelUtils {// NOSONAR
+	public static final String OPT_LINK_STYLE       = "linkStyle";
+	public static final String OPT_FIELD_FLAGS      = "fieldFlags";
+	public static final String OPT_PACKAGE_NAME     = "packageName";
+	public static final String OPT_IMPORTS          = "imports";
+	public static final String OPT_CLASS_DEFINITION = "classDefinition";
+	public static final String OPT_ACTIVE_ENTITY    = "activeEntity";
+	public static final String OPT_ACTIVE_RECORD    = "activeRecord";
+	public static final String OPT_PUBLIC_FIELD     = "enablePublicField";
+	public static final String OPT_FILTER_MODELS    = "filterModels";
 
 	/**
 	 * Convert tableName to entity class, note: before use this method
@@ -70,7 +82,7 @@ public abstract class TableModelUtils {// NOSONAR
 
 	/**
 	 * Read database structure and write them to Java entity class source code
-	 * 
+	 *
 	 * @param ds
 	 *            The DataSource instance
 	 * @param dialect
@@ -81,14 +93,30 @@ public abstract class TableModelUtils {// NOSONAR
 	 *            see TableModelUtilsOfJavaSrc.modelToJavaSourceCode() method
 	 */
 	public static void db2JavaSrcFiles(DataSource ds, Dialect dialect, String outputfolder,
-			Map<String, Object> setting) {
+	                                   Map<String, Object> setting) {
 		Connection conn = null;
 		try {
 			conn = ds.getConnection();
 			TableModel[] models = db2Models(conn, dialect);
+			File dir = new File(outputfolder);
+			if (!dir.exists()) {
+				dir.mkdirs();
+			}
+			Collection<String> filterModels = (Collection<String>)setting.get(OPT_FILTER_MODELS);
+			if (filterModels != null) {
+				Set<String> t = new HashSet<>();
+				for(String s : filterModels) {
+					t.add(s.trim().toLowerCase());
+				}
+				filterModels = t;
+			}
 			for (TableModel model : models) {
-				File writename = new File(
-						outputfolder + "/" + TableModelUtilsOfJavaSrc.getClassNameFromTableModel(model) + ".java");
+				String tableName = model.getTableName();
+				if (filterModels != null && filterModels.contains(tableName.toLowerCase())) {
+					continue;
+				}
+				File writename = new File(dir,  TableModelUtilsOfJavaSrc.getClassNameFromTableModel(model) + ".java");
+
 				writename.createNewFile();// NOSONAR
 				BufferedWriter out = new BufferedWriter(new FileWriter(writename));
 				String javaSrc = model2JavaSrc(model, setting);
@@ -108,7 +136,7 @@ public abstract class TableModelUtils {// NOSONAR
 
 	/**
 	 * Convert a TablemModel instance to Java entity class source code
-	 * 
+	 *
 	 * @param model
 	 *            The TableModel instance
 	 * @param setting
diff --git a/core/src/main/java/com/github/drinkjava2/jdialects/TableModelUtilsOfJavaSrc.java b/core/src/main/java/com/github/drinkjava2/jdialects/TableModelUtilsOfJavaSrc.java
index 431750d7232978908fde77224d0a69d70bc326dc..62191a49b575f08edfbda2a5bb2ec2e93fe6a9ef 100644
--- a/core/src/main/java/com/github/drinkjava2/jdialects/TableModelUtilsOfJavaSrc.java
+++ b/core/src/main/java/com/github/drinkjava2/jdialects/TableModelUtilsOfJavaSrc.java
@@ -11,15 +11,20 @@
  */
 package com.github.drinkjava2.jdialects;
 
+import static com.github.drinkjava2.jdialects.StrUtils.clearQuote;
+
+import com.github.drinkjava2.jdialects.springsrc.utils.StringUtils;
+import java.util.HashSet;
 import java.util.Map;
 
 import com.github.drinkjava2.jdialects.model.ColumnModel;
 import com.github.drinkjava2.jdialects.model.FKeyModel;
 import com.github.drinkjava2.jdialects.model.TableModel;
+import java.util.Set;
 
 /**
  * The tool to convert TableModel to Java source code
- * 
+ *
  * @author Yong Zhu
  * @since 2.0.4
  */
@@ -31,25 +36,38 @@ public abstract class TableModelUtilsOfJavaSrc {// NOSONAR
 	 * USER_NAME -> userName <br/>
 	 * User_naMe -> userName <br/>
 	 * UserName -> userName <br/>
-	 * USERNAME -> uSERNAME <br/>
+	 * USERNAME -> username <br/>
 	 * userName -> userName <br/>
 	 * username -> username <br/>
 	 */
 	private static String transColumnNameToFieldName(String colName) {
-		if (StrUtils.isEmpty(colName))
+		if (StrUtils.isEmpty(colName)) {
 			return colName;
-		if (!colName.contains("_"))
-			return StrUtils.toLowerCaseFirstOne(colName);
+		}
+
+		String rawColName = clearQuote(colName);
+		if (!colName.contains("_")) {
+			//return StrUtils.toLowerCaseFirstOne(colName);
+			if (rawColName.toUpperCase().equals(rawColName)) {
+				// 全大写
+				return rawColName.toLowerCase();
+			} else {
+				return StrUtils.toLowerCaseFirstOne(rawColName);
+			}
+		}
+
 		StringBuilder sb = new StringBuilder();
-		char[] chars = colName.toLowerCase().toCharArray();
+		char[] chars = rawColName.toLowerCase().toCharArray();
 		for (int i = 0; i < chars.length; i++) {
 			char c = chars[i];
-			if (c == '_')
+			if (c == '_') {
 				continue;
-			if ((i > 0) && (chars[i - 1]) == '_' && sb.length() > 0)
+			}
+			if ((i > 0) && (chars[i - 1]) == '_' && sb.length() > 0) {
 				sb.append(Character.toUpperCase(c));
-			else
+			} else {
 				sb.append(c);
+			}
 		}
 		return sb.toString();
 	}
@@ -59,19 +77,25 @@ public abstract class TableModelUtilsOfJavaSrc {// NOSONAR
 	 * user_name -> UserName <br/>
 	 * USER_NAME -> UserName <br/>
 	 * User_naMe -> UserName <br/>
-	 * UserName -> UserName <br/>
-	 * USERNAME -> USERNAME <br/>
-	 * userName -> UserName <br/>
-	 * username -> Username <br/>
+	 * UserName  -> UserName <br/>
+	 * USERNAME  -> Username <br/>
+	 * userName  -> UserName <br/>
+	 * username  -> Username <br/>
 	 */
 	public static String getClassNameFromTableModel(TableModel model) {
 		DialectException.assureNotNull(model, "TableModel can not be null");
 		String className;
-		if (model.getEntityClass() != null)
+		if (model.getEntityClass() != null) {
 			className = model.getEntityClass().getSimpleName();
-		else {
+		} else {
 			DialectException.assureNotEmpty(model.getTableName(), "TableName can not be empty in TableModel");
-			className = StrUtils.toUpperCaseFirstOne(transColumnNameToFieldName(model.getTableName()));
+			String tableName = transColumnNameToFieldName(model.getTableName());
+
+			if (tableName.toUpperCase().equals(tableName)) {
+				// 全大写
+				tableName = tableName.toLowerCase();
+			}
+			className = StrUtils.toUpperCaseFirstOne(tableName);
 		}
 		DialectException.assureNotEmpty(className, "TableName can not be empty in TableModel");
 		return className;
@@ -79,39 +103,94 @@ public abstract class TableModelUtilsOfJavaSrc {// NOSONAR
 
 	/**
 	 * Convert a TablemModel instance to Java entity class source code
-	 * 
+	 *
 	 * @param model
 	 *            The TableModel instance
 	 * @param setting
 	 *            The setting options, for example:
-	 * 
+	 *
 	 *            <pre>
 	 *            Map<String, Object> setting = new HashMap<String, Object>();
-	 *            setting.put("linkStyle", false);
-	 *            setting.put("activeRecord", false);
-	 *            setting.put("activeEntity", true);
-	 *            setting.put("packageName", "somepackage");
-	 *            setting.put("fieldFlags", true);
+	 *            setting.put(TableModelUtils.OPT_LINK_STYLE, false);
+	 *            setting.put(TableModelUtils.OPT_ACTIVE_RECORD, false);
+	 *            setting.put(TableModelUtils.OPT_ACTIVE_ENTITY, true);
+	 *            setting.put(TableModelUtils.OPT_PACKAGE_NAME, "somepackage");
+	 *            setting.put(TableModelUtils.OPT_FIELD_FLAGS, true);
+	 *            setting.put(TableModelUtils.OPT_ENABLE_JAVA8, true);
+	 *            setting.put(TableModelUtils.OPT_IMPORTS, "some imports");
+	 *            setting.put(TableModelUtils.OPT_CLASS_DEFINITION, "public class $1 extends ActiveRecord<$1>");
 	 *            </pre>
-	 * 
+	 *
 	 * @return Java Bean source code of entity
 	 */
 	public static String modelToJavaSourceCode(TableModel model, Map<String, Object> setting) {
-		boolean linkStyle = Boolean.TRUE.equals(setting.get("linkStyle"));
-		boolean fieldFlags = Boolean.TRUE.equals(setting.get("fieldFlags"));
-		String classDefinition = (String) setting.get("classDefinition");
-		String packageName = (String) setting.get("packageName");
-		String imports = (String) setting.get("imports");
 		// head
 		StringBuilder body = new StringBuilder();
-		if (!StrUtils.isEmpty(packageName))
-			body.append("package ").append(packageName).append(";\n");
-		if (!StrUtils.isEmpty(imports))
-			body.append(imports);
-		body.append("\n");
+		generatePackage(setting, body);
+		generateImports(setting, body);
 
 		// @table
 		String className = getClassNameFromTableModel(model);
+		int    fkeyCount = generateAnnotationForClass(model, body, className);
+
+		// class
+		generateClassBegin(setting, body, className);
+		generateStaticFields(model, setting, body, className);
+		generateFields(model, setting,fkeyCount, body);
+		generateGetterAndSetter(model, setting, className, body);
+		generateClassEnd(body);
+
+		return body.toString();
+	}
+
+	private static void generateStaticFields(TableModel model,
+	                                         Map<String, Object> setting,
+	                                         StringBuilder body, String className)
+	{
+		boolean fieldFlags = Boolean.TRUE.equals(setting.get(TableModelUtils.OPT_FIELD_FLAGS));
+		StringBuilder fieldSB = new StringBuilder();
+		// fieldStaticNames
+		// 不知道为什么有些表的column 定义信息是重复的，我不是DBA不清楚原因。
+		// 也需要还有什么废弃的标志，但前面的处理没有过滤，这里先临时处理一下。
+		Set<String> processed = new HashSet<>();
+		if (fieldFlags) {
+			fieldSB.append("\tpublic static final String TABLE_NAME = \"").append(model.getTableName()).append("\";\n\n");
+			for (ColumnModel col : model.getColumns()) {
+				String columnName = col.getColumnName();
+				if (processed.contains(columnName)) {
+					continue;
+				}
+				String rawColName = clearQuote(columnName);
+				processed.add(columnName);
+
+				fieldSB.append("\tpublic static final String ")
+				       .append(rawColName.toUpperCase()).append(" = \"")
+				       .append(columnName).append("\";\n\n");
+			}
+		}
+		body.append(fieldSB.toString()).append("\n\n");
+	}
+
+	private static void generateClassEnd(StringBuilder body)
+	{
+		body.append("}\n");
+	}
+
+	private static void generateClassBegin(Map<String, Object> setting,
+	                                       StringBuilder body,
+	                                       String className)
+	{
+		String classDefinition = (String) setting.get(TableModelUtils.OPT_CLASS_DEFINITION);
+		body.append(StrUtils.replace(classDefinition, "$1", className)).append(" {\n\n");
+	}
+
+	private static int generateAnnotationForClass(TableModel model,
+	                                              StringBuilder body,
+	                                              String className)
+	{
+		if (!StringUtils.isEmpty(model.getComment())) {
+			body.append("/**\n * ").append(model.getComment()).append("\n */\n");
+		}
 		if (!className.equals(model.getTableName())) {
 			body.append("@Table").append("(name=\"").append(model.getTableName()).append("\")\n");
 		}
@@ -119,17 +198,21 @@ public abstract class TableModelUtilsOfJavaSrc {// NOSONAR
 		// Compound FKEY
 		int fkeyCount = 0;
 		for (FKeyModel fkey : model.getFkeyConstraints()) {
-			if (fkey.getColumnNames().size() <= 1)// Not compound Fkey
+			if (fkey.getColumnNames().size() <= 1)/* Not compound Fkey*/ {
 				continue;
+			}
 			body.append("@FKey");
-			if (fkeyCount > 0)
+			if (fkeyCount > 0) {
 				body.append(fkeyCount);
+			}
 			body.append("(");
 			fkeyCount++;
-			if (!StrUtils.isEmpty(fkey.getFkeyName()))
+			if (!StrUtils.isEmpty(fkey.getFkeyName())) {
 				body.append("name=\"").append(fkey.getFkeyName()).append("\", ");
-			if (!fkey.getDdl())
+			}
+			if (!fkey.getDdl()) {
 				body.append("ddl=false, ");
+			}
 			String fkeyCols = StrUtils.listToString(fkey.getColumnNames());
 			fkeyCols = StrUtils.replace(fkeyCols, ",", "\",\"");
 			String refCols = StrUtils.arrayToString(fkey.getRefTableAndColumns());
@@ -137,97 +220,177 @@ public abstract class TableModelUtilsOfJavaSrc {// NOSONAR
 			body.append("columns={\"").append(fkeyCols).append("\"}, refs={\"").append(refCols).append("\"}");
 			body.append(")\n");
 		}
+		return fkeyCount;
+	}
 
-		// class
-		body.append(StrUtils.replace(classDefinition, "$1", className)).append(" {\n\n");
+	private static void generatePackage(Map<String, Object> setting, StringBuilder body)
+	{
+		String packageName = (String) setting.get(TableModelUtils.OPT_PACKAGE_NAME);
+		if (!StrUtils.isEmpty(packageName)) {
+			body.append("package ").append(packageName).append(";\n");
+		}
+		body.append("\n");
+	}
+
+	private static void generateImports(Map<String, Object> setting, StringBuilder body)
+	{
+		String imports = (String) setting.get(TableModelUtils.OPT_IMPORTS);
+		body.append("import static com.github.drinkjava2.jsqlbox.JAVA8.*;\n");
+		body.append("import static com.github.drinkjava2.jsqlbox.JSQLBOX.*;\n");
+		body.append("import com.github.drinkjava2.jdbpro.JDBPRO.*;\n");
+		body.append("import com.github.drinkjava2.jdbpro.SqlItem;\n");
+		body.append("\n");
 
-		// Fields
+		if (!StrUtils.isEmpty(imports)) {
+			body.append(imports);
+		}
+		body.append("\n");
+	}
+
+
+	private static void generateFields(TableModel model,
+	                                   Map<String, Object> setting,
+	                                   int fkeyCount,
+	                                   StringBuilder body)
+	{
+		boolean enablePublicField = Boolean.TRUE.equals(setting.get(TableModelUtils.OPT_PUBLIC_FIELD));
 		StringBuilder pkeySB = new StringBuilder();
 		StringBuilder normalSB = new StringBuilder();
-		StringBuilder sb = null;
+		// 不知道为什么有些表的column 定义信息是重复的，我不是DBA不清楚原因。
+		// 也需要还有什么废弃的标志，但前面的处理没有过滤，这里先临时处理一下。
+		Set<String> processed = new HashSet<>();
+		StringBuilder sb;
 		for (ColumnModel col : model.getColumns()) {
+			String columnName = col.getColumnName();
+			if (processed.contains(columnName)) {
+				continue;
+			}
+			processed.add(columnName);
 			Class<?> javaType = TypeUtils.dialectTypeToJavaType(col.getColumnType());
-			if (javaType == null)
+
+			if (javaType == null) {
 				continue;
+			}
+
 			sb = col.getPkey() ? pkeySB : normalSB;
+
+			if (!StringUtils.isEmpty(col.getComment())) {
+				sb.append("\t/**\n\t * ").append(col.getComment()).append("\n\t */\n");
+			}
+
 			String fieldName = col.getEntityField();
-			if (StrUtils.isEmpty(fieldName))
-				fieldName = transColumnNameToFieldName(col.getColumnName());
-			// fieldStaticNames
-			if (fieldFlags)
-				sb.append("  public static final String " + fieldName.toUpperCase() + " = \"" + col.getColumnName()
-						+ "\";\n");
+
+			if (StrUtils.isEmpty(fieldName)) {
+				fieldName = transColumnNameToFieldName(columnName);
+			}
+
 			// @Id
-			if (col.getPkey())
-				sb.append("  @Id\n");
+			if (col.getPkey()) {
+				sb.append("\t@Id\n");
+			}
 
 			// @Column
 			boolean isStr = Type.VARCHAR.equals(col.getColumnType()) || Type.CHAR.equals(col.getColumnType());
-			if (fieldFlags || !fieldName.equalsIgnoreCase(col.getColumnName()) || (isStr && 250 != col.getLength())) {
-				sb.append("  @Column(");
-				if (fieldFlags)
-					sb.append("name=").append(fieldName.toUpperCase()).append(", ");
-				else if (!fieldName.equalsIgnoreCase(col.getColumnName()))
-					sb.append("name=\"").append(col.getColumnName()).append("\", ");
-
-				if (isStr && 250 != col.getLength())
+			// 好魔幻的数字
+			boolean lenNotEq250 = 250 != col.getLength();
+			if (!fieldName.equalsIgnoreCase(columnName) || (isStr && lenNotEq250)) {
+				sb.append("\t@Column(");
+				sb.append("name=\"").append(columnName).append("\", ");
+
+				if (isStr && lenNotEq250) {
 					sb.append("length=").append(col.getLength()).append(", ");
+				}
 				sb.setLength(sb.length() - 2);
 				sb.append(")\n");
 			}
 
 			// @SingleFKey
 			for (FKeyModel fkey : model.getFkeyConstraints()) {
-				if (fkey.getColumnNames().size() != 1)// Not compound Fkey
+				/* Not compound Fkey*/
+				if (fkey.getColumnNames().size() != 1) {
 					continue;
-				if (!col.getColumnName().equalsIgnoreCase(fkey.getColumnNames().get(0)))
+				}
+				if (!columnName.equalsIgnoreCase(fkey.getColumnNames().get(0))) {
 					continue;
-				sb.append("  @SingleFKey");
+				}
+				sb.append("\t@SingleFKey");
 				sb.append("(");
 				fkeyCount++;
-				if (!StrUtils.isEmpty(fkey.getFkeyName()))
+				if (!StrUtils.isEmpty(fkey.getFkeyName())) {
 					sb.append("name=\"").append(fkey.getFkeyName()).append("\", ");
-				if (!fkey.getDdl())
+				}
+				if (!fkey.getDdl()) {
 					sb.append("ddl=false, ");
+				}
 				String refCols = StrUtils.arrayToString(fkey.getRefTableAndColumns());
 				refCols = StrUtils.replace(refCols, ",", "\",\"");
 				sb.append("refs={\"").append(refCols).append("\"}");
 				sb.append(")\n");
 			}
-			sb.append("  private ").append(javaType.getSimpleName()).append(" ").append(fieldName).append(";\n\n");
+			String accessModifier = "private";
+			if(enablePublicField) {
+				accessModifier = "public";
+			}
+			sb.append("\t").append(accessModifier).append(' ')
+			  .append(javaType.getSimpleName()).append(' ')
+			  .append(fieldName).append(";\n\n");
 		}
-		body.append(pkeySB.toString()).append(normalSB.toString());
 
-		pkeySB.setLength(0);
-		normalSB.setLength(0);
+		body.append(pkeySB.toString()).append("\n\n")
+		    .append(normalSB.toString()).append("\n\n");
+	}
+
+
+	private static void generateGetterAndSetter(TableModel model,
+	                                            Map<String, Object> setting,
+	                                            String className,
+	                                            StringBuilder body)
+	{
+		boolean linkStyle = Boolean.TRUE.equals(setting.get(TableModelUtils.OPT_LINK_STYLE));
+		StringBuilder pkeySB = new StringBuilder();
+		StringBuilder normalSB = new StringBuilder();
+		// 不知道为什么有些表的column 定义信息是重复的，我不是DBA不清楚原因。
+		// 也需要还有什么废弃的标志，但前面的处理没有过滤，这里先临时处理一下。
+		Set<String> processed = new HashSet<>();
+		StringBuilder sb;
 		for (ColumnModel col : model.getColumns()) {
+			if (processed.contains(col.getColumnName())) {
+				continue;
+			}
+
+			processed.add(col.getColumnName());
 			// getter
 			Class<?> javaType = TypeUtils.dialectTypeToJavaType(col.getColumnType());
-			if (javaType == null)
+
+			if (javaType == null) {
 				continue;
+			}
+
 			sb = col.getPkey() ? pkeySB : normalSB;
 			String fieldName = col.getEntityField();
-			if (StrUtils.isEmpty(fieldName))
+			if (StrUtils.isEmpty(fieldName)) {
 				fieldName = transColumnNameToFieldName(col.getColumnName());
+			}
 			String getFieldName = "get" + StrUtils.toUpperCaseFirstOne(fieldName);
-			sb.append("  public ").append(javaType.getSimpleName()).append(" ").append(getFieldName).append("(){\n");
-			sb.append("    return ").append(fieldName).append(";\n");
-			sb.append("  }\n\n");
+			sb.append("\tpublic ").append(javaType.getSimpleName()).append(" ").append(getFieldName).append("(){\n");
+			sb.append("\t\treturn ").append(fieldName).append(";\n");
+			sb.append("\t}\n\n");
 
 			// settter
 			String setFieldName = "set" + StrUtils.toUpperCaseFirstOne(fieldName);
-			sb.append("  public ").append(linkStyle ? className : "void").append(" ").append(setFieldName).append("(")
-					.append(javaType.getSimpleName()).append(" ").append(fieldName).append("){\n");
-			sb.append("    this.").append(fieldName).append("=").append(fieldName).append(";\n");
-			if (linkStyle)
-				sb.append("    return this;\n");
-			sb.append("  }\n\n");
+			if (linkStyle) {
+				sb.append("\tpublic ").append(className).append(" ").append(setFieldName).append("(")
+				  .append(javaType.getSimpleName()).append(" ").append(fieldName).append("){\n");
+				sb.append("\t\tthis.").append(fieldName).append("=").append(fieldName).append(";\n");
+				sb.append("\t\treturn this;\n");
+			} else {
+				sb.append("\tpublic ").append("void").append(" ").append(setFieldName).append("(")
+				  .append(javaType.getSimpleName()).append(" ").append(fieldName).append("){\n");
+				sb.append("\t\tthis.").append(fieldName).append("=").append(fieldName).append(";\n");
+			}
+			sb.append("\t}\n\n");
 		}
 		body.append(pkeySB.toString()).append(normalSB.toString());
-
-		body.append("}");
-
-		return body.toString();
 	}
 
 }
diff --git a/core/src/main/java/com/github/drinkjava2/jdialects/TypeUtils.java b/core/src/main/java/com/github/drinkjava2/jdialects/TypeUtils.java
index 9d55a361a79147eef46085e21ac9144f59b24d55..4e997f85f470a19d2e5220dd2e44d1116cead8f3 100644
--- a/core/src/main/java/com/github/drinkjava2/jdialects/TypeUtils.java
+++ b/core/src/main/java/com/github/drinkjava2/jdialects/TypeUtils.java
@@ -99,6 +99,8 @@ public abstract class TypeUtils {// NOSONAR
 		/* JAVA8_END */
 
 		TYPE_TO_JAVA_MAP.put(Type.NUMERIC, BigDecimal.class);
+		// 这一句是多余的，，会被 TYPE_TO_JAVA_MAP.put(Type.BIGINT, Long.class) 覆盖
+		// 目前64位机器，BIGINT 就是 Long， 有必要吗?
 		TYPE_TO_JAVA_MAP.put(Type.BIGINT, BigInteger.class);
 		TYPE_TO_JAVA_MAP.put(Type.BOOLEAN, Boolean.class);
 		TYPE_TO_JAVA_MAP.put(Type.TINYINT, Byte.class);
@@ -108,7 +110,9 @@ public abstract class TypeUtils {// NOSONAR
 		TYPE_TO_JAVA_MAP.put(Type.BINARY, java.sql.Blob.class);
 		TYPE_TO_JAVA_MAP.put(Type.BIT, Boolean.class);
 		TYPE_TO_JAVA_MAP.put(Type.BLOB, java.sql.Blob.class);
-		TYPE_TO_JAVA_MAP.put(Type.CHAR, Character.class);
+		// 这里没有考虑长度，会有问题，还是影射成 String
+        // TYPE_TO_JAVA_MAP.put(Type.CHAR, Character.class);
+		TYPE_TO_JAVA_MAP.put(Type.CHAR, String.class);
 		TYPE_TO_JAVA_MAP.put(Type.CLOB, java.sql.Clob.class);
 		TYPE_TO_JAVA_MAP.put(Type.DECIMAL, BigDecimal.class);
 		TYPE_TO_JAVA_MAP.put(Type.DOUBLE, Double.class);
@@ -384,6 +388,7 @@ public abstract class TypeUtils {// NOSONAR
 				return c;
 			}
 		} else if (vType == String.class) {
+			// FIXME: 这里应当考虑长度。
 			if (javaType == char.class || javaType == Character.class) {
 				return ((String) value).length() > 0 ? ((String) value).charAt(0) : '\u0000';
 			}
diff --git a/core/src/main/java/com/github/drinkjava2/jsqlbox/DB.java b/core/src/main/java/com/github/drinkjava2/jsqlbox/DB.java
index 9900387be2ed123cb445dc2551f8a5b8614c5b6b..39845856ac221d08065726c17ee00655721e9044 100644
--- a/core/src/main/java/com/github/drinkjava2/jsqlbox/DB.java
+++ b/core/src/main/java/com/github/drinkjava2/jsqlbox/DB.java
@@ -11,6 +11,7 @@
  */
 package com.github.drinkjava2.jsqlbox;
 
+import com.github.drinkjava2.jdbpro.PreparedSQL;
 import java.sql.Connection;
 import java.util.List;
 import java.util.Map;
@@ -164,7 +165,8 @@ public abstract class DB extends JDBPRO {// NOSONAR
 	public static <T> T iInsert(Object... items) {return gctx().iInsert(items);}
 	public static <T> T iExecute(Object... items) {return gctx().iExecute(items); }
 	public static <T> List<T> iQueryForEntityList(Object... items) {return gctx().iQueryForEntityList(items);}
-	   
+	public static PreparedSQL iPrepare(Object... items) { return gctx().iPrepare(items); }
+
 	public static <T> T nQuery(Connection conn, ResultSetHandler<T> rsh, String sql, Object... items) {return gctx().nQuery(conn, rsh, sql, items);}
 	public static <T> T nQueryForObject(Connection conn, String sql, Object... items) {return gctx().nQueryForObject(conn, sql, items);}
 	public static String nQueryForString(Connection conn, String sql, Object... items) {return gctx().nQueryForString(conn, sql, items);}
diff --git a/core/src/main/java/com/github/drinkjava2/jsqlbox/DbContext.java b/core/src/main/java/com/github/drinkjava2/jsqlbox/DbContext.java
index f97cada7aef721903a3a8774f24a81a04334930c..7435aba133dd4f09bdef2ed96e6bd98683bd4000 100644
--- a/core/src/main/java/com/github/drinkjava2/jsqlbox/DbContext.java
+++ b/core/src/main/java/com/github/drinkjava2/jsqlbox/DbContext.java
@@ -143,8 +143,9 @@ public class DbContext extends DbPro {// NOSONAR
 	public Object getCurrentAuditor() {
 		DbException.assureNotNull(auditorGetter, "Can not call getCurrentAuditor() when auditorGetter is null.");
 		Object result = null;
-		if (methodOfGetCurrentAuditor == null)
+		if (methodOfGetCurrentAuditor == null) {
 			methodOfGetCurrentAuditor = ClassUtils.getMethod(auditorGetter.getClass(), "getCurrentAuditor");
+		}
 		try {
 			result = methodOfGetCurrentAuditor.invoke(auditorGetter);
 		} catch (Exception e) {
@@ -158,17 +159,19 @@ public class DbContext extends DbPro {// NOSONAR
 	 */
 	@Override
 	protected boolean dealOneSqlItem(boolean iXxxStyle, PreparedSQL ps, Object item) {// NOSONAR
-		if (super.dealOneSqlItem(iXxxStyle, ps, item))
+		if (super.dealOneSqlItem(iXxxStyle, ps, item)) {
 			return true; // if super class DbPro can deal it, let it do
+		}
 		if (item instanceof SqlOption) {
-			if (SqlOption.IGNORE_EMPTY.equals(item))
+			if (SqlOption.IGNORE_EMPTY.equals(item)) {
 				ps.setIgnoreEmpty(true);
-			else if (SqlOption.IGNORE_NULL.equals(item))
+			} else if (SqlOption.IGNORE_NULL.equals(item)) {
 				ps.setIgnoreNull(true);
-			else if (SqlOption.AUTO_SQL.equals(item))
+			} else if (SqlOption.AUTO_SQL.equals(item)) {
 				DbContextUtils.appendLeftJoinSQL(ps);
-			else
+			} else {
 				return false;
+			}
 		} else if (item instanceof TableModel) {
 			ps.addModel(item);
 			DbContextUtils.createLastAutoAliasName(ps);
@@ -179,95 +182,113 @@ public class DbContext extends DbPro {// NOSONAR
 		} else if (item instanceof SqlItem) {
 			SqlItem sqItem = (SqlItem) item;
 			SqlOption sqlItemType = sqItem.getType();
-			if (SqlOption.SHARD_TABLE.equals(sqlItemType))
+			if (SqlOption.SHARD_TABLE.equals(sqlItemType)) {
 				handleShardTable(ps, sqItem);
-			else if (SqlOption.SHARD_DATABASE.equals(sqlItemType))
+			} else if (SqlOption.SHARD_DATABASE.equals(sqlItemType)) {
 				handleShardDatabase(ps, sqItem);
-			else if (SqlOption.GIVE.equals(sqlItemType)) {
+			} else if (SqlOption.GIVE.equals(sqlItemType)) {
 				Object[] o = ((SqlItem) item).getParameters();
 				String[] s = new String[o.length];
-				for (int i = 0; i < o.length; i++)
+				for (int i = 0; i < o.length; i++) {
 					s[i] = (String) o[i];
+				}
 				ps.addGives(s);
 			} else if (SqlOption.GIVE_BOTH.equals(sqlItemType)) {
 				Object[] a = ((SqlItem) item).getParameters();
 				ps.addGives(new String[] { (String) a[0], (String) a[1] });
 				ps.addGives(new String[] { (String) a[1], (String) a[0] });
 			} else if (SqlOption.ALIAS.equals(sqlItemType)) {
-				if (sqItem.getParameters().length == 0)
+				if (sqItem.getParameters().length == 0) {
 					throw new DbException("alias method need parameter");
+				}
 				ps.setLastAliases((String[]) sqItem.getParameters());// NOSONAR
 			} else if (SqlOption.TAIL.equals(sqlItemType)) {
 				return true; // do nothing
-			} else
+			} else {
 				return false;
+			}
 		} else if (item instanceof EntityNet) {
 			ps.setEntityNet((EntityNet) item);
 			ps.addHandler(new EntityNetHandler());
-		} else
+		} else {
 			return false;
+		}
 		return true;
 	}
 
 	/** Get the sharded table name by given shard values */
 	public String getShardedTB(Object entityOrClass, Object... shardvalues) {
 		String table = DbContextUtils.getShardedTB(this, entityOrClass, shardvalues);
-		if (table == null)
-			throw new DbException("No found ShardingTool can handle target '" + entityOrClass + "' ");
+		if (table == null) {
+			throw new DbException(
+					"No found ShardingTool can handle target '" + entityOrClass + "' ");
+		}
 		return table;
 	}
 
 	/** Get the sharded DB(=DbContext) instance by given shard values */
 	public DbContext getShardedDB(Object entityOrClass, Object... shardvalues) {
 		DbContext ctx = DbContextUtils.getShardedDB(this, entityOrClass, shardvalues);
-		if (ctx == null)
-			throw new DbException("Not found ShardingTool can handle entity '" + entityOrClass + "' ");
+		if (ctx == null) {
+			throw new DbException(
+					"Not found ShardingTool can handle entity '" + entityOrClass + "' ");
+		}
 		return ctx;
 	}
 
 	protected String handleShardTable(PreparedSQL predSQL, SqlItem item) {
 		Object[] params = item.getParameters();
 		String table = null;
-		if (predSQL.getModels() == null || predSQL.getModels().length == 0)
+		if (predSQL.getModels() == null || predSQL.getModels().length == 0) {
 			throw new DbException("ShardTable not found model setting");
+		}
 		TableModel model = (TableModel) predSQL.getModels()[0];
-		if (params.length == 1)
+		if (params.length == 1) {
 			table = DbContextUtils.getShardedTB(this, model, params[0]);
-		else if (params.length == 2)
+		} else if (params.length == 2) {
 			table = DbContextUtils.getShardedTB(this, model, params[0], params[1]);
-		else
+		} else {
 			throw new DbException("ShardTable need 1 or 2 parameters");
-		if (table == null)
+		}
+		if (table == null) {
 			throw new DbException("No ShardTable Tool found.");
-		else
+		} else {
 			predSQL.addSql(table);
+		}
 		return table;
 	}
 
 	protected DbPro handleShardDatabase(PreparedSQL predSQL, SqlItem item) {
 		Object[] params = item.getParameters();
 		DbContext ctx = null;
-		if (predSQL.getModels() == null || predSQL.getModels().length == 0)
+		if (predSQL.getModels() == null || predSQL.getModels().length == 0) {
 			return this;
+		}
 		TableModel model = (TableModel) predSQL.getModels()[0];
-		if (params.length == 1)
+		if (params.length == 1) {
 			ctx = DbContextUtils.getShardedDB(this, model, params[0]);
-		else if (params.length == 2)
+		} else if (params.length == 2) {
 			ctx = DbContextUtils.getShardedDB(this, model, params[0], params[1]);
-		else
+		} else {
 			throw new DbException("ShardDatabase need 1 or 2 parameters");
-		if (ctx == null)
+		}
+		if (ctx == null) {
 			throw new DbException("No ShardDatabase Tool found.");
-		else
+		} else {
 			predSQL.setSwitchTo(ctx);
+		}
 		return ctx;
 	}
 
 	private static void checkOnlyOneRowAffected(int result, String curdType) {
-		if (result <= 0)
-			throw new DbException("No record found in database when do '" + curdType + "' operation.");
-		if (result > 1)
-			throw new DbException("Affect more than 1 row record in database when do '" + curdType + "' operation.");
+		if (result <= 0) {
+			throw new DbException(
+					"No record found in database when do '" + curdType + "' operation.");
+		}
+		if (result > 1) {
+			throw new DbException("Affect more than 1 row record in database when do '" + curdType
+					                      + "' operation.");
+		}
 	}
 
 	/** Use i style to query for an entity list */
@@ -292,8 +313,9 @@ public class DbContext extends DbPro {// NOSONAR
 
 	/** If dbModels not loaded, loaded from database */
 	public void ensureTailModelLoaded() {
-		if (tailModels != null)
+		if (tailModels != null) {
 			return;
+		}
 		reloadTailModels();
 	}
 
@@ -319,12 +341,13 @@ public class DbContext extends DbPro {// NOSONAR
 		} catch (SQLException e) {
 			throw new DbException(e);
 		} finally {
-			if (conn != null)
+			if (conn != null) {
 				try {
 					conn.close();
 				} catch (SQLException e) {
 					DbException.eatException(e);
 				}
+			}
 		}
 	}
 
@@ -407,18 +430,24 @@ public class DbContext extends DbPro {// NOSONAR
 	/** Load entity by given id, if not 1 row found, throw SqlBoxException */
 	public <T> T eLoadById(Class<T> entityClass, Object entityId, Object... optionItems) {
 		T entity = DbContextUtils.entityLoadByIdTry(this, entityClass, entityId, optionItems);
-		if (entity == null)
+		if (entity == null) {
 			throw new DbException("No record found in database when do 'LoadById' operation.");
+		}
 		return entity;
 	}
 
 	/** Load one entity according SQL, if not found, return null */
 	public <T> T eLoadBySQL(Object... optionItems) {
 		List<T> entities = iQueryForEntityList(optionItems);
-		if (entities == null || entities.isEmpty())
-			throw new DbException("No record found in database when try to load entity.");
-		if (entities.size() > 1)
-			throw new DbException("More than 1 record found when try to load 1 entity.");
+		if (entities == null || entities.isEmpty()) {
+			// throw new DbException("No record found in database when try to load entity.");
+			System.err.println("WARNING: No record found in database when try to load entity.");
+			return null;
+		}
+		if (entities.size() > 1) {
+			// throw new DbException("More than 1 record found when try to load 1 entity.");
+			System.err.println("WARNING: More than 1 record found when try to load 1 entity.");
+		}
 		return entities.get(0);
 	}
 
@@ -520,8 +549,9 @@ public class DbContext extends DbPro {// NOSONAR
 	public String[] toCreateGtxLogDDL(Class<?>... entityClasses) {
 		assertDialectNotNull();
 		TableModel[] mds = new TableModel[entityClasses.length];
-		for (int i = 0; i < entityClasses.length; i++)
+		for (int i = 0; i < entityClasses.length; i++) {
 			mds[i] = GtxUtils.entity2GtxLogModel(entityClasses[i]);
+		}
 		return dialect.toCreateDDL(mds);
 	}
 
@@ -539,13 +569,15 @@ public class DbContext extends DbPro {// NOSONAR
 
 	/** Execute DDL stored in a String array */
 	public void executeDDL(String[] sqls) {
-		for (String sql : sqls)
+		for (String sql : sqls) {
 			nExecute(sql);
+		}
 	}
 
 	private void assertDialectNotNull() {
-		if (dialect == null)
+		if (dialect == null) {
 			throw new DbProException("Try use a dialect method but dialect is null");
+		}
 	}
 
 	protected void getteSetters__________________________() {// NOSONAR
diff --git a/core/src/main/java/com/github/drinkjava2/jsqlbox/JSQLBOX.java b/core/src/main/java/com/github/drinkjava2/jsqlbox/JSQLBOX.java
index 713f28027633682fc7c519532e511533d8002656..20ed0fa574732a4ed14c88252c46f07c0d14b392 100644
--- a/core/src/main/java/com/github/drinkjava2/jsqlbox/JSQLBOX.java
+++ b/core/src/main/java/com/github/drinkjava2/jsqlbox/JSQLBOX.java
@@ -11,6 +11,8 @@
  */
 package com.github.drinkjava2.jsqlbox;
 
+import com.github.drinkjava2.jdialects.springsrc.utils.StringUtils;
+
 /**
  * JSQLBOX store some public static methods, usually used for static import to
  * simplify programming
@@ -18,6 +20,686 @@ package com.github.drinkjava2.jsqlbox;
  * @author Yong Zhu
  * @since 1.0.8
  */
-public abstract class JSQLBOX extends DB { 
-	
+public abstract class JSQLBOX extends DB {
+	public static final String EQ_P        = " = ? ";
+	public static final String EQ          = " = ";
+	public static final String LTEQ_P      = " <= ? ";
+	public static final String LTEQ        = " <= ";
+	public static final String GTEQ_P      = " >= ? ";
+	public static final String GTEQ        = " >= ";
+	public static final String NOTEQ        = " != ";
+	public static final String NOTEQ_P        = " != ? ";
+	public static final String IS_NULL     = " IS NULL ";
+	public static final String IS_NOT_NULL = " IS NOT NULL ";
+	public static final String NOT_IN      = " NOT IN ";
+	public static final String ORDER_BY    = " ORDER BY ";
+	public static final String LIMIT_1     = " LIMIT 1";
+	public static final String SELECT_STAR = " SELECT * ";
+	public static final String DELETE_FROM = " DELETE FROM ";
+	public static final String INSERT_INTO = " INSERT INTO ";
+	// sql 关键字
+	public static final String ABSOLUTE = " ABSOLUTE ";
+	public static final String ACCESS = " ACCESS ";
+	public static final String ACTION = " ACTION ";
+	public static final String ADA = " ADA ";
+	public static final String ADD = " ADD ";
+	public static final String ADMIN = " ADMIN ";
+	public static final String AFTER = " AFTER ";
+	public static final String AGGREGATE = " AGGREGATE ";
+	public static final String ALIAS = " ALIAS ";
+	public static final String ALL = " ALL ";
+	public static final String ALLOCATE = " ALLOCATE ";
+	public static final String ALTER = " ALTER ";
+	public static final String ANALYSE = " ANALYSE ";
+	public static final String ANALYZE = " ANALYZE ";
+	public static final String AND = " AND ";
+	public static final String ANY = " ANY ";
+	public static final String ARE = " ARE ";
+	public static final String ARRAY = " ARRAY ";
+	public static final String AS = " AS ";
+	public static final String ASC = " ASC ";
+	public static final String ASENSITIVE = " ASENSITIVE ";
+	public static final String ASSERTION = " ASSERTION ";
+	public static final String ASSIGNMENT = " ASSIGNMENT ";
+	public static final String ASYMMETRIC = " ASYMMETRIC ";
+	public static final String AT = " AT ";
+	public static final String ATOMIC = " ATOMIC ";
+	public static final String AUTHORIZATION = " AUTHORIZATION ";
+	public static final String AVG = " AVG ";
+	public static final String BACKWARD = " BACKWARD ";
+	public static final String BEFORE = " BEFORE ";
+	public static final String BEGIN = " BEGIN ";
+	public static final String BETWEEN = " BETWEEN ";
+	public static final String BINARY = " BINARY ";
+	public static final String BIT = " BIT ";
+	public static final String BITVAR = " BITVAR ";
+	public static final String BIT_LENGTH = " BIT_LENGTH ";
+	public static final String BLOB = " BLOB ";
+	public static final String BOOLEAN = " BOOLEAN ";
+	public static final String BOTH = " BOTH ";
+	public static final String BREADTH = " BREADTH ";
+	public static final String BY = " BY ";
+	public static final String C = " C ";
+	public static final String CACHE = " CACHE ";
+	public static final String CALL = " CALL ";
+	public static final String CALLED = " CALLED ";
+	public static final String CARDINALITY = " CARDINALITY ";
+	public static final String CASCADE = " CASCADE ";
+	public static final String CASCADED = " CASCADED ";
+	public static final String CASE = " CASE ";
+	public static final String CAST = " CAST ";
+	public static final String CATALOG = " CATALOG ";
+	public static final String CATALOG_NAME = " CATALOG_NAME ";
+	public static final String CHAIN = " CHAIN ";
+	public static final String CHAR = " CHAR ";
+	public static final String CHARACTER = " CHARACTER ";
+	public static final String CHARACTERISTICS = " CHARACTERISTICS ";
+	public static final String CHARACTER_LENGTH = " CHARACTER_LENGTH ";
+	public static final String CHARACTER_SET_CATALOG = " CHARACTER_SET_CATALOG ";
+	public static final String CHARACTER_SET_NAME = " CHARACTER_SET_NAME ";
+	public static final String CHARACTER_SET_SCHEMA = " CHARACTER_SET_SCHEMA ";
+	public static final String CHAR_LENGTH = " CHAR_LENGTH ";
+	public static final String CHECK = " CHECK ";
+	public static final String CHECKED = " CHECKED ";
+	public static final String CHECKPOINT = " CHECKPOINT ";
+	public static final String CLASS = " CLASS ";
+	public static final String CLASS_ORIGIN = " CLASS_ORIGIN ";
+	public static final String CLOB = " CLOB ";
+	public static final String CLOSE = " CLOSE ";
+	public static final String CLUSTER = " CLUSTER ";
+	public static final String COALESCE = " COALESCE ";
+	public static final String COBOL = " COBOL ";
+	public static final String COLLATE = " COLLATE ";
+	public static final String COLLATION = " COLLATION ";
+	public static final String COLLATION_CATALOG = " COLLATION_CATALOG ";
+	public static final String COLLATION_NAME = " COLLATION_NAME ";
+	public static final String COLLATION_SCHEMA = " COLLATION_SCHEMA ";
+	public static final String COLUMN = " COLUMN ";
+	public static final String COLUMN_NAME = " COLUMN_NAME ";
+	public static final String COMMAND_FUNCTION = " COMMAND_FUNCTION ";
+	public static final String COMMAND_FUNCTION_CODE = " COMMAND_FUNCTION_CODE ";
+	public static final String COMMENT = " COMMENT ";
+	public static final String COMMIT = " COMMIT ";
+	public static final String COMMITTED = " COMMITTED ";
+	public static final String COMPLETION = " COMPLETION ";
+	public static final String CONDITION_NUMBER = " CONDITION_NUMBER ";
+	public static final String CONNECT = " CONNECT ";
+	public static final String CONNECTION = " CONNECTION ";
+	public static final String CONNECTION_NAME = " CONNECTION_NAME ";
+	public static final String CONSTRAINT = " CONSTRAINT ";
+	public static final String CONSTRAINTS = " CONSTRAINTS ";
+	public static final String CONSTRAINT_CATALOG = " CONSTRAINT_CATALOG ";
+	public static final String CONSTRAINT_NAME = " CONSTRAINT_NAME ";
+	public static final String CONSTRAINT_SCHEMA = " CONSTRAINT_SCHEMA ";
+	public static final String CONSTRUCTOR = " CONSTRUCTOR ";
+	public static final String CONTAINS = " CONTAINS ";
+	public static final String CONTINUE = " CONTINUE ";
+	public static final String CONVERT = " CONVERT ";
+	public static final String COPY = " COPY ";
+	public static final String CORRESPONDING = " CORRESPONDING ";
+	public static final String COUNT = " COUNT ";
+	public static final String CREATE = " CREATE ";
+	public static final String CREATEDB = " CREATEDB ";
+	public static final String CREATEUSER = " CREATEUSER ";
+	public static final String CROSS = " CROSS ";
+	public static final String CUBE = " CUBE ";
+	public static final String CURRENT = " CURRENT ";
+	public static final String CURRENT_DATE = " CURRENT_DATE ";
+	public static final String CURRENT_PATH = " CURRENT_PATH ";
+	public static final String CURRENT_ROLE = " CURRENT_ROLE ";
+	public static final String CURRENT_TIME = " CURRENT_TIME ";
+	public static final String CURRENT_TIMESTAMP = " CURRENT_TIMESTAMP ";
+	public static final String CURRENT_USER = " CURRENT_USER ";
+	public static final String CURSOR = " CURSOR ";
+	public static final String CURSOR_NAME = " CURSOR_NAME ";
+	public static final String CYCLE = " CYCLE ";
+	public static final String DATA = " DATA ";
+	public static final String DATABASE = " DATABASE ";
+	public static final String DATE = " DATE ";
+	public static final String DATETIME_INTERVAL_CODE = " DATETIME_INTERVAL_CODE ";
+	public static final String DATETIME_INTERVAL_PRECISION = " DATETIME_INTERVAL_PRECISION ";
+	public static final String DAY = " DAY ";
+	public static final String DEALLOCATE = " DEALLOCATE ";
+	public static final String DEC = " DEC ";
+	public static final String DECIMAL = " DECIMAL ";
+	public static final String DECLARE = " DECLARE ";
+	public static final String DEFAULT = " DEFAULT ";
+	public static final String DEFERRABLE = " DEFERRABLE ";
+	public static final String DEFERRED = " DEFERRED ";
+	public static final String DEFINED = " DEFINED ";
+	public static final String DEFINER = " DEFINER ";
+	public static final String DELETE = " DELETE ";
+	public static final String DELIMITERS = " DELIMITERS ";
+	public static final String DEPTH = " DEPTH ";
+	public static final String DEREF = " DEREF ";
+	public static final String DESC = " DESC ";
+	public static final String DESCRIBE = " DESCRIBE ";
+	public static final String DESCRIPTOR = " DESCRIPTOR ";
+	public static final String DESTROY = " DESTROY ";
+	public static final String DESTRUCTOR = " DESTRUCTOR ";
+	public static final String DETERMINISTIC = " DETERMINISTIC ";
+	public static final String DIAGNOSTICS = " DIAGNOSTICS ";
+	public static final String DICTIONARY = " DICTIONARY ";
+	public static final String DISCONNECT = " DISCONNECT ";
+	public static final String DISPATCH = " DISPATCH ";
+	public static final String DISTINCT = " DISTINCT ";
+	public static final String DO = " DO ";
+	public static final String DOMAIN = " DOMAIN ";
+	public static final String DOUBLE = " DOUBLE ";
+	public static final String DROP = " DROP ";
+	public static final String DYNAMIC = " DYNAMIC ";
+	public static final String DYNAMIC_FUNCTION = " DYNAMIC_FUNCTION ";
+	public static final String DYNAMIC_FUNCTION_CODE = " DYNAMIC_FUNCTION_CODE ";
+	public static final String EACH = " EACH ";
+	public static final String ELSE = " ELSE ";
+	public static final String ENCODING = " ENCODING ";
+	public static final String ENCRYPTED = " ENCRYPTED ";
+	public static final String END = " END ";
+	public static final String END_EXEC = " END-EXEC ";
+	public static final String EQUALS = " EQUALS ";
+	public static final String ESCAPE = " ESCAPE ";
+	public static final String EVERY = " EVERY ";
+	public static final String EXCEPT = " EXCEPT ";
+	public static final String EXCEPTION = " EXCEPTION ";
+	public static final String EXCLUSIVE = " EXCLUSIVE ";
+	public static final String EXEC = " EXEC ";
+	public static final String EXECUTE = " EXECUTE ";
+	public static final String EXISTING = " EXISTING ";
+	public static final String EXISTS = " EXISTS ";
+	public static final String EXPLAIN = " EXPLAIN ";
+	public static final String EXTERNAL = " EXTERNAL ";
+	public static final String EXTRACT = " EXTRACT ";
+	public static final String FALSE = " FALSE ";
+	public static final String FETCH = " FETCH ";
+	public static final String FINAL = " FINAL ";
+	public static final String FIRST = " FIRST ";
+	public static final String FLOAT = " FLOAT ";
+	public static final String FOR = " FOR ";
+	public static final String FORCE = " FORCE ";
+	public static final String FOREIGN = " FOREIGN ";
+	public static final String FORTRAN = " FORTRAN ";
+	public static final String FORWARD = " FORWARD ";
+	public static final String FOUND = " FOUND ";
+	public static final String FREE = " FREE ";
+	public static final String FREEZE = " FREEZE ";
+	public static final String FROM = " FROM ";
+	public static final String FULL = " FULL ";
+	public static final String FUNCTION = " FUNCTION ";
+	public static final String G = " G ";
+	public static final String GENERAL = " GENERAL ";
+	public static final String GENERATED = " GENERATED ";
+	public static final String GET = " GET ";
+	public static final String GLOBAL = " GLOBAL ";
+	public static final String GO = " GO ";
+	public static final String GOTO = " GOTO ";
+	public static final String GRANT = " GRANT ";
+	public static final String GRANTED = " GRANTED ";
+	public static final String GROUP = " GROUP ";
+	public static final String GROUPING = " GROUPING ";
+	public static final String HANDLER = " HANDLER ";
+	public static final String HAVING = " HAVING ";
+	public static final String HIERARCHY = " HIERARCHY ";
+	public static final String HOLD = " HOLD ";
+	public static final String HOST = " HOST ";
+	public static final String HOUR = " HOUR ";
+	public static final String IDENTITY = " IDENTITY ";
+	public static final String IGNORE = " IGNORE ";
+	public static final String ILIKE = " ILIKE ";
+	public static final String IMMEDIATE = " IMMEDIATE ";
+	public static final String IMPLEMENTATION = " IMPLEMENTATION ";
+	public static final String IN = " IN ";
+	public static final String INCREMENT = " INCREMENT ";
+	public static final String INDEX = " INDEX ";
+	public static final String INDICATOR = " INDICATOR ";
+	public static final String INFIX = " INFIX ";
+	public static final String INHERITS = " INHERITS ";
+	public static final String INITIALIZE = " INITIALIZE ";
+	public static final String INITIALLY = " INITIALLY ";
+	public static final String INNER = " INNER ";
+	public static final String INOUT = " INOUT ";
+	public static final String INPUT = " INPUT ";
+	public static final String INSENSITIVE = " INSENSITIVE ";
+	public static final String INSERT = " INSERT ";
+	public static final String INSTANCE = " INSTANCE ";
+	public static final String INSTANTIABLE = " INSTANTIABLE ";
+	public static final String INSTEAD = " INSTEAD ";
+	public static final String INT = " INT ";
+	public static final String INTEGER = " INTEGER ";
+	public static final String INTERSECT = " INTERSECT ";
+	public static final String INTERVAL = " INTERVAL ";
+	public static final String INTO = " INTO ";
+	public static final String INVOKER = " INVOKER ";
+	public static final String IS = " IS ";
+	public static final String ISNULL = " ISNULL ";
+	public static final String ISOLATION = " ISOLATION ";
+	public static final String ITERATE = " ITERATE ";
+	public static final String JOIN = " JOIN ";
+	public static final String K = " K ";
+	public static final String KEY = " KEY ";
+	public static final String KEY_MEMBER = " KEY_MEMBER ";
+	public static final String KEY_TYPE = " KEY_TYPE ";
+	public static final String LANCOMPILER = " LANCOMPILER ";
+	public static final String LANGUAGE = " LANGUAGE ";
+	public static final String LARGE = " LARGE ";
+	public static final String LAST = " LAST ";
+	public static final String LATERAL = " LATERAL ";
+	public static final String LEADING = " LEADING ";
+	public static final String LEFT = " LEFT ";
+	public static final String LENGTH = " LENGTH ";
+	public static final String LESS = " LESS ";
+	public static final String LEVEL = " LEVEL ";
+	public static final String LIKE = " LIKE ";
+	public static final String LIMIT = " LIMIT ";
+	public static final String LISTEN = " LISTEN ";
+	public static final String LOAD = " LOAD ";
+	public static final String LOCAL = " LOCAL ";
+	public static final String LOCALTIME = " LOCALTIME ";
+	public static final String LOCALTIMESTAMP = " LOCALTIMESTAMP ";
+	public static final String LOCATION = " LOCATION ";
+	public static final String LOCATOR = " LOCATOR ";
+	public static final String LOCK = " LOCK ";
+	public static final String LOWER = " LOWER ";
+	public static final String M = " M ";
+	public static final String MAP = " MAP ";
+	public static final String MATCH = " MATCH ";
+	public static final String MAX = " MAX ";
+	public static final String MAXVALUE = " MAXVALUE ";
+	public static final String MESSAGE_LENGTH = " MESSAGE_LENGTH ";
+	public static final String MESSAGE_OCTET_LENGTH = " MESSAGE_OCTET_LENGTH ";
+	public static final String MESSAGE_TEXT = " MESSAGE_TEXT ";
+	public static final String METHOD = " METHOD ";
+	public static final String MIN = " MIN ";
+	public static final String MINUTE = " MINUTE ";
+	public static final String MINVALUE = " MINVALUE ";
+	public static final String MOD = " MOD ";
+	public static final String MODE = " MODE ";
+	public static final String MODIFIES = " MODIFIES ";
+	public static final String MODIFY = " MODIFY ";
+	public static final String MODULE = " MODULE ";
+	public static final String MONTH = " MONTH ";
+	public static final String MORE = " MORE ";
+	public static final String MOVE = " MOVE ";
+	public static final String MUMPS = " MUMPS ";
+	public static final String NAME = " NAME ";
+	public static final String NAMES = " NAMES ";
+	public static final String NATIONAL = " NATIONAL ";
+	public static final String NATURAL = " NATURAL ";
+	public static final String NCHAR = " NCHAR ";
+	public static final String NCLOB = " NCLOB ";
+	public static final String NEW = " NEW ";
+	public static final String NEXT = " NEXT ";
+	public static final String NO = " NO ";
+	public static final String NOCREATEDB = " NOCREATEDB ";
+	public static final String NOCREATEUSER = " NOCREATEUSER ";
+	public static final String NONE = " NONE ";
+	public static final String NOT = " NOT ";
+	public static final String NOTHING = " NOTHING ";
+	public static final String NOTIFY = " NOTIFY ";
+	public static final String NOTNULL = " NOTNULL ";
+	public static final String NULL = " NULL ";
+	public static final String NULLABLE = " NULLABLE ";
+	public static final String NULLIF = " NULLIF ";
+	public static final String NUMBER = " NUMBER ";
+	public static final String NUMERIC = " NUMERIC ";
+	public static final String OBJECT = " OBJECT ";
+	public static final String OCTET_LENGTH = " OCTET_LENGTH ";
+	public static final String OF = " OF ";
+	public static final String OFF = " OFF ";
+	public static final String OFFSET = " OFFSET ";
+	public static final String OIDS = " OIDS ";
+	public static final String OLD = " OLD ";
+	public static final String ON = " ON ";
+	public static final String ONLY = " ONLY ";
+	public static final String OPEN = " OPEN ";
+	public static final String OPERATION = " OPERATION ";
+	public static final String OPERATOR = " OPERATOR ";
+	public static final String OPTION = " OPTION ";
+	public static final String OPTIONS = " OPTIONS ";
+	public static final String OR = " OR ";
+	public static final String ORDER = " ORDER ";
+	public static final String ORDINALITY = " ORDINALITY ";
+	public static final String OUT = " OUT ";
+	public static final String OUTER = " OUTER ";
+	public static final String OUTPUT = " OUTPUT ";
+	public static final String OVERLAPS = " OVERLAPS ";
+	public static final String OVERLAY = " OVERLAY ";
+	public static final String OVERRIDING = " OVERRIDING ";
+	public static final String OWNER = " OWNER ";
+	public static final String PAD = " PAD ";
+	public static final String PARAMETER = " PARAMETER ";
+	public static final String PARAMETERS = " PARAMETERS ";
+	public static final String PARAMETER_MODE = " PARAMETER_MODE ";
+	public static final String PARAMETER_NAME = " PARAMETER_NAME ";
+	public static final String PARAMETER_ORDINAL_POSITION = " PARAMETER_ORDINAL_POSITION ";
+	public static final String PARAMETER_SPECIFIC_CATALOG = " PARAMETER_SPECIFIC_CATALOG ";
+	public static final String PARAMETER_SPECIFIC_NAME = " PARAMETER_SPECIFIC_NAME ";
+	public static final String PARAMETER_SPECIFIC_SCHEMA = " PARAMETER_SPECIFIC_SCHEMA ";
+	public static final String PARTIAL = " PARTIAL ";
+	public static final String PASCAL = " PASCAL ";
+	public static final String PASSWORD = " PASSWORD ";
+	public static final String PATH = " PATH ";
+	public static final String PENDANT = " PENDANT ";
+	public static final String PLI = " PLI ";
+	public static final String POSITION = " POSITION ";
+	public static final String POSTFIX = " POSTFIX ";
+	public static final String PRECISION = " PRECISION ";
+	public static final String PREFIX = " PREFIX ";
+	public static final String PREORDER = " PREORDER ";
+	public static final String PREPARE = " PREPARE ";
+	public static final String PRESERVE = " PRESERVE ";
+	public static final String PRIMARY = " PRIMARY ";
+	public static final String PRIOR = " PRIOR ";
+	public static final String PRIVILEGES = " PRIVILEGES ";
+	public static final String PROCEDURAL = " PROCEDURAL ";
+	public static final String PROCEDURE = " PROCEDURE ";
+	public static final String PUBLIC = " PUBLIC ";
+	public static final String READ = " READ ";
+	public static final String READS = " READS ";
+	public static final String REAL = " REAL ";
+	public static final String RECURSIVE = " RECURSIVE ";
+	public static final String REF = " REF ";
+	public static final String REFERENCES = " REFERENCES ";
+	public static final String REFERENCING = " REFERENCING ";
+	public static final String REINDEX = " REINDEX ";
+	public static final String RELATIVE = " RELATIVE ";
+	public static final String RENAME = " RENAME ";
+	public static final String REPEATABLE = " REPEATABLE ";
+	public static final String REPLACE = " REPLACE ";
+	public static final String RESET = " RESET ";
+	public static final String RESTRICT = " RESTRICT ";
+	public static final String RESULT = " RESULT ";
+	public static final String RETURN = " RETURN ";
+	public static final String RETURNED_LENGTH = " RETURNED_LENGTH ";
+	public static final String RETURNED_OCTET_LENGTH = " RETURNED_OCTET_LENGTH ";
+	public static final String RETURNED_SQLSTATE = " RETURNED_SQLSTATE ";
+	public static final String RETURNS = " RETURNS ";
+	public static final String REVOKE = " REVOKE ";
+	public static final String RIGHT = " RIGHT ";
+	public static final String ROLE = " ROLE ";
+	public static final String ROLLBACK = " ROLLBACK ";
+	public static final String ROLLUP = " ROLLUP ";
+	public static final String ROUTINE = " ROUTINE ";
+	public static final String ROUTINE_CATALOG = " ROUTINE_CATALOG ";
+	public static final String ROUTINE_NAME = " ROUTINE_NAME ";
+	public static final String ROUTINE_SCHEMA = " ROUTINE_SCHEMA ";
+	public static final String ROW = " ROW ";
+	public static final String ROWS = " ROWS ";
+	public static final String ROW_COUNT = " ROW_COUNT ";
+	public static final String RULE = " RULE ";
+	public static final String SAVEPOINT = " SAVEPOINT ";
+	public static final String SCALE = " SCALE ";
+	public static final String SCHEMA = " SCHEMA ";
+	public static final String SCHEMA_NAME = " SCHEMA_NAME ";
+	public static final String SCOPE = " SCOPE ";
+	public static final String SCROLL = " SCROLL ";
+	public static final String SEARCH = " SEARCH ";
+	public static final String SECOND = " SECOND ";
+	public static final String SECTION = " SECTION ";
+	public static final String SECURITY = " SECURITY ";
+	public static final String SELECT = " SELECT ";
+	public static final String SELF = " SELF ";
+	public static final String SENSITIVE = " SENSITIVE ";
+	public static final String SEQUENCE = " SEQUENCE ";
+	public static final String SERIALIZABLE = " SERIALIZABLE ";
+	public static final String SERVER_NAME = " SERVER_NAME ";
+	public static final String SESSION = " SESSION ";
+	public static final String SESSION_USER = " SESSION_USER ";
+	public static final String SET = " SET ";
+	public static final String SETOF = " SETOF ";
+	public static final String SETS = " SETS ";
+	public static final String SHARE = " SHARE ";
+	public static final String SHOW = " SHOW ";
+	public static final String SIMILAR = " SIMILAR ";
+	public static final String SIMPLE = " SIMPLE ";
+	public static final String SIZE = " SIZE ";
+	public static final String SMALLINT = " SMALLINT ";
+	public static final String SOME = " SOME ";
+	public static final String SOURCE = " SOURCE ";
+	public static final String SPACE = " SPACE ";
+	public static final String SPECIFIC = " SPECIFIC ";
+	public static final String SPECIFICTYPE = " SPECIFICTYPE ";
+	public static final String SPECIFIC_NAME = " SPECIFIC_NAME ";
+	public static final String SQL = " SQL ";
+	public static final String SQLCODE = " SQLCODE ";
+	public static final String SQLERROR = " SQLERROR ";
+	public static final String SQLEXCEPTION = " SQLEXCEPTION ";
+	public static final String SQLSTATE = " SQLSTATE ";
+	public static final String SQLWARNING = " SQLWARNING ";
+	public static final String START = " START ";
+	public static final String STATE = " STATE ";
+	public static final String STATEMENT = " STATEMENT ";
+	public static final String STATIC = " STATIC ";
+	public static final String STATISTICS = " STATISTICS ";
+	public static final String STDIN = " STDIN ";
+	public static final String STDOUT = " STDOUT ";
+	public static final String STRUCTURE = " STRUCTURE ";
+	public static final String STYLE = " STYLE ";
+	public static final String SUBCLASS_ORIGIN = " SUBCLASS_ORIGIN ";
+	public static final String SUBLIST = " SUBLIST ";
+	public static final String SUBSTRING = " SUBSTRING ";
+	public static final String SUM = " SUM ";
+	public static final String SYMMETRIC = " SYMMETRIC ";
+	public static final String SYSID = " SYSID ";
+	public static final String SYSTEM = " SYSTEM ";
+	public static final String SYSTEM_USER = " SYSTEM_USER ";
+	public static final String TABLE = " TABLE ";
+	public static final String TEMP = " TEMP ";
+	public static final String TEMPLATE = " TEMPLATE ";
+	public static final String TEMPORARY = " TEMPORARY ";
+	public static final String TERMINATE = " TERMINATE ";
+	public static final String THAN = " THAN ";
+	public static final String THEN = " THEN ";
+	public static final String TIME = " TIME ";
+	public static final String TIMESTAMP = " TIMESTAMP ";
+	public static final String TIMEZONE_HOUR = " TIMEZONE_HOUR ";
+	public static final String TIMEZONE_MINUTE = " TIMEZONE_MINUTE ";
+	public static final String TO = " TO ";
+	public static final String TOAST = " TOAST ";
+	public static final String TRAILING = " TRAILING ";
+	public static final String TRANSACTION = " TRANSACTION ";
+	public static final String TRANSACTIONS_COMMITTED = " TRANSACTIONS_COMMITTED ";
+	public static final String TRANSACTIONS_ROLLED_BACK = " TRANSACTIONS_ROLLED_BACK ";
+	public static final String TRANSACTION_ACTIVE = " TRANSACTION_ACTIVE ";
+	public static final String TRANSFORM = " TRANSFORM ";
+	public static final String TRANSFORMS = " TRANSFORMS ";
+	public static final String TRANSLATE = " TRANSLATE ";
+	public static final String TRANSLATION = " TRANSLATION ";
+	public static final String TREAT = " TREAT ";
+	public static final String TRIGGER = " TRIGGER ";
+	public static final String TRIGGER_CATALOG = " TRIGGER_CATALOG ";
+	public static final String TRIGGER_NAME = " TRIGGER_NAME ";
+	public static final String TRIGGER_SCHEMA = " TRIGGER_SCHEMA ";
+	public static final String TRIM = " TRIM ";
+	public static final String TRUE = " TRUE ";
+	public static final String TRUNCATE = " TRUNCATE ";
+	public static final String TRUSTED = " TRUSTED ";
+	public static final String TYPE = " TYPE ";
+	public static final String UNCOMMITTED = " UNCOMMITTED ";
+	public static final String UNDER = " UNDER ";
+	public static final String UNENCRYPTED = " UNENCRYPTED ";
+	public static final String UNION = " UNION ";
+	public static final String UNIQUE = " UNIQUE ";
+	public static final String UNKNOWN = " UNKNOWN ";
+	public static final String UNLISTEN = " UNLISTEN ";
+	public static final String UNNAMED = " UNNAMED ";
+	public static final String UNNEST = " UNNEST ";
+	public static final String UNTIL = " UNTIL ";
+	public static final String UPDATE = " UPDATE ";
+	public static final String UPPER = " UPPER ";
+	public static final String USAGE = " USAGE ";
+	public static final String USER = " USER ";
+	public static final String USER_DEFINED_TYPE_CATALOG = " USER_DEFINED_TYPE_CATALOG ";
+	public static final String USER_DEFINED_TYPE_NAME = " USER_DEFINED_TYPE_NAME ";
+	public static final String USER_DEFINED_TYPE_SCHEMA = " USER_DEFINED_TYPE_SCHEMA ";
+	public static final String USING = " USING ";
+	public static final String VACUUM = " VACUUM ";
+	public static final String VALID = " VALID ";
+	public static final String VALUE = " VALUE ";
+	public static final String VALUES = " VALUES ";
+	public static final String VARCHAR = " VARCHAR ";
+	public static final String VARIABLE = " VARIABLE ";
+	public static final String VARYING = " VARYING ";
+	public static final String VERBOSE = " VERBOSE ";
+	public static final String VERSION = " VERSION ";
+	public static final String VIEW = " VIEW ";
+	public static final String WHEN = " WHEN ";
+	public static final String WHENEVER = " WHENEVER ";
+	public static final String WHERE = " WHERE ";
+	public static final String WITH = " WITH ";
+	public static final String WITHOUT = " WITHOUT ";
+	public static final String WORK = " WORK ";
+	public static final String WRITE = " WRITE ";
+	public static final String YEAR = " YEAR ";
+	public static final String ZONE = " ZONE ";
+
+	// usefull function
+	public static String simpleReplaceDangerous(String str){
+		str=str.replaceAll(";","")
+		       .replaceAll("&","&amp;")
+		       .replaceAll("<","&lt;")
+		       .replaceAll(">","&gt;")
+		       .replaceAll("'","''")
+		       .replaceAll("--","")
+		       .replaceAll("/","")
+		       .replaceAll("%","");
+		return str;
+	}
+	public static final String array(String... arr) {
+		if (arr == null || arr.length == 0) {
+			return "";
+		}
+		StringBuilder builder = new StringBuilder(200);
+		for (String str : arr) {
+			if (StringUtils.isEmpty(str) ) {
+				builder.append("'',");
+			} else {
+				builder.append("'").append(simpleReplaceDangerous(str)).append("',");
+			}
+		}
+		if (builder.length() > 0) {
+			builder.setLength(builder.length() - 1);
+		}
+
+		return "(" +builder.toString() + ")";
+	}
+
+	public static final String array(int... arr) {
+ 		if (arr == null || arr.length == 0) {
+ 			return "";
+	    }
+		StringBuilder builder = new StringBuilder(200);
+		for (int i : arr) {
+			builder.append(i).append(',');
+		}
+		builder.setLength(builder.length() - 1);
+		return "(" +builder.toString() + ")";
+	}
+
+	public static final String array(Integer... arr) {
+		if (arr == null || arr.length == 0) {
+			return "";
+		}
+		StringBuilder builder = new StringBuilder(200);
+		for (Integer i : arr) {
+			if (i == null ) {
+				continue;
+			}
+			builder.append(i).append(',');
+
+		}
+		if (builder.length() > 0) {
+			builder.setLength(builder.length() - 1);
+		}
+
+		return "(" +builder.toString() + ")";
+	}
+
+	public static final String array(long... arr) {
+		if (arr == null || arr.length == 0) {
+			return "";
+		}
+		StringBuilder builder = new StringBuilder(200);
+		for (long i : arr) {
+			builder.append(i).append(',');
+		}
+		builder.setLength(builder.length() - 1);
+		return "(" +builder.toString() + ")";
+	}
+
+	public static final String array(Long... arr) {
+		if (arr == null || arr.length == 0) {
+			return "";
+		}
+		StringBuilder builder = new StringBuilder(200);
+		for (Long i : arr) {
+			if (i == null) {
+				continue;
+			}
+			builder.append(i).append(',');
+		}
+		if (builder.length() > 0) {
+			builder.setLength(builder.length() - 1);
+		}
+		return "(" +builder.toString() + ")";
+	}
+
+	public static final String array(short... arr) {
+		if (arr == null || arr.length == 0) {
+			return "";
+		}
+		StringBuilder builder = new StringBuilder(200);
+		for (short i : arr) {
+			builder.append(i).append(',');
+		}
+		builder.setLength(builder.length() - 1);
+		return "(" +builder.toString() + ")";
+	}
+
+	public static final String array(Short... arr) {
+		if (arr == null || arr.length == 0) {
+			return "";
+		}
+		StringBuilder builder = new StringBuilder(200);
+		for (Short i : arr) {
+			if (i == null) {
+				continue;
+			}
+			builder.append(i).append(',');
+		}
+		if (builder.length() > 0) {
+			builder.setLength(builder.length() - 1);
+		}
+		return "(" +builder.toString() + ")";
+	}
+
+	public static final String array(byte... arr) {
+		if (arr == null || arr.length == 0) {
+			return "";
+		}
+		StringBuilder builder = new StringBuilder(200);
+		for (byte i : arr) {
+			builder.append(i).append(',');
+		}
+		builder.setLength(builder.length() - 1);
+		return "(" +builder.toString() + ")";
+	}
+
+	public static final String array(Byte... arr) {
+		if (arr == null || arr.length == 0) {
+			return "";
+		}
+		StringBuilder builder = new StringBuilder(200);
+		for (Byte i : arr) {
+			if (i == null) {
+				continue;
+			}
+			builder.append(i).append(',');
+		}
+		if (builder.length() > 0) {
+			builder.setLength(builder.length() - 1);
+		}
+		return "(" +builder.toString() + ")";
+	}
+
+
 }
\ No newline at end of file