From 86b139e4f45d17b00e8e0051049e54865ebc86f6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9B=BE=E5=BE=B7=E6=A3=AE?= <1500225483@qq.com>
Date: Fri, 16 Sep 2022 03:17:20 +0000
Subject: [PATCH 1/2] =?UTF-8?q?=E6=96=B0=E5=BB=BA=20=E6=9B=BE=E5=BE=B7?=
 =?UTF-8?q?=E6=A3=AE?=
MIME-Version: 1.0
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Content-Transfer-Encoding: 8bit

---
 "\346\233\276\345\276\267\346\243\256/.keep" | 0
 1 file changed, 0 insertions(+), 0 deletions(-)
 create mode 100644 "\346\233\276\345\276\267\346\243\256/.keep"

diff --git "a/\346\233\276\345\276\267\346\243\256/.keep" "b/\346\233\276\345\276\267\346\243\256/.keep"
new file mode 100644
index 0000000..e69de29
-- 
Gitee


From 74c6a5f78653df2fe5b72ad77bd5c19ecf182163 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9B=BE=E5=BE=B7=E6=A3=AE?= <1500225483@qq.com>
Date: Fri, 16 Sep 2022 03:17:41 +0000
Subject: [PATCH 2/2] =?UTF-8?q?=E6=9B=BE=E5=BE=B7=E6=A3=AE?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: 曾德森 <1500225483@qq.com>
---
 .../SQLQuery1.sql"                            | 23 +++++++++++++++++++
 .../sql\347\254\224\350\256\260.txt"          | 12 ++++++++++
 2 files changed, 35 insertions(+)
 create mode 100644 "\346\233\276\345\276\267\346\243\256/2022-9-15-\345\273\272\345\272\223\345\273\272\350\241\250\347\273\203\344\271\240/SQLQuery1.sql"
 create mode 100644 "\346\233\276\345\276\267\346\243\256/2022-9-15-\345\273\272\345\272\223\345\273\272\350\241\250\347\273\203\344\271\240/sql\347\254\224\350\256\260.txt"

diff --git "a/\346\233\276\345\276\267\346\243\256/2022-9-15-\345\273\272\345\272\223\345\273\272\350\241\250\347\273\203\344\271\240/SQLQuery1.sql" "b/\346\233\276\345\276\267\346\243\256/2022-9-15-\345\273\272\345\272\223\345\273\272\350\241\250\347\273\203\344\271\240/SQLQuery1.sql"
new file mode 100644
index 0000000..0cc3066
--- /dev/null
+++ "b/\346\233\276\345\276\267\346\243\256/2022-9-15-\345\273\272\345\272\223\345\273\272\350\241\250\347\273\203\344\271\240/SQLQuery1.sql"
@@ -0,0 +1,23 @@
+--�������ݿ�
+create database DBTEST
+--�������ݱ�
+use DBTEST
+create table sectionInfo(
+	sectionID  int primary key identity(1001,1),
+	sectionName  varchar(10) not null
+)
+
+create table userInfo(
+	userNo  int primary key not null identity(1,1),
+	userName  varchar(10) not null,
+	userAge   int not null check(userAge<=1 and userage>=100),
+	userAddress  varchar(50) default('����'),
+	userSection  int  references sectionInfo(sectionID)
+)
+
+create table workInfo(
+	 workId int primary key not null identity(1,1),
+	 userId  int references userInfo(userNo) not null,
+	 workTime datetime not null,
+	 workDescription  varchar(40) not null check(workDescription='�ٵ�'or workDescription='����'or workDescription='����'or workDescription='����'or workDescription='�¼�')
+)
\ No newline at end of file
diff --git "a/\346\233\276\345\276\267\346\243\256/2022-9-15-\345\273\272\345\272\223\345\273\272\350\241\250\347\273\203\344\271\240/sql\347\254\224\350\256\260.txt" "b/\346\233\276\345\276\267\346\243\256/2022-9-15-\345\273\272\345\272\223\345\273\272\350\241\250\347\273\203\344\271\240/sql\347\254\224\350\256\260.txt"
new file mode 100644
index 0000000..c9f37ab
--- /dev/null
+++ "b/\346\233\276\345\276\267\346\243\256/2022-9-15-\345\273\272\345\272\223\345\273\272\350\241\250\347\273\203\344\271\240/sql\347\254\224\350\256\260.txt"
@@ -0,0 +1,12 @@
+创建数据库：create database 数据库名称
+创建数据表：create table 数据表名称
+使用数据库：use 数据库名称
+删除表：drop table 表名
+主键：字段后面加 primary key    
+自增：字段后面加 identity 
+非空：字段后面加 not null 
+默认: -----------default('默认值')
+检查：----------check(字段='值' or 字段='值' )
+         -----------check(len(字段)=值）
+插入数据：insert into 表名（字段名）value(值)
+外键：字段后面加 foreign key /references 表面（字段名）
\ No newline at end of file
-- 
Gitee