diff --git "a/18\351\231\210\351\271\217/\344\275\234\344\270\232/SQLQuery2.sql" "b/18\351\231\210\351\271\217/\344\275\234\344\270\232/SQLQuery2.sql"
new file mode 100644
index 0000000000000000000000000000000000000000..8a36b8713637c80ce1ccf41efbaeb6eca5befa3d
--- /dev/null
+++ "b/18\351\231\210\351\271\217/\344\275\234\344\270\232/SQLQuery2.sql"
@@ -0,0 +1,54 @@
+--1. 查询出武汉地区所有的员工信息，要求显示部门名称以及员工的详细资料
+select * from People 
+join Department  on  People.DepartmentId = Department.DepartmentId
+where PeopleAddress ='武汉';
+
+--2. 查询出武汉地区所有的员工信息，要求显示部门名称，职级名称以及员工的详细资料
+select *  from People 
+join Department  on  People.DepartmentId = Department.DepartmentId
+join [rank] on people.departmentid=[rank].rankid
+where PeopleAddress ='武汉';
+
+--3. 根据部门分组统计员工人数，员工工资总和，平均工资，最高工资和最低工资。
+select DepartmentName,COUNT(*) 员工人数, SUM(PeopleSalary) 工资总和, AVG(PeopleSalary) 平均工资, MAX(PeopleSalary) 最大工资,MIN(PeopleSalary) 最小工资 from People
+join Department  on People.DepartmentId = Department.DepartmentId
+group by DepartmentName;
+
+--4. 根据部门分组统计员工人数，员工工资总和，平均工资，最高工资和最低工资，平均工资在10000 以下的不参与统计，并且根据平均工资降序排列。
+select DepartmentName,COUNT(*) 员工人数, SUM(PeopleSalary) 工资总和, AVG(PeopleSalary) 平均工资, MAX(PeopleSalary) 最大工资,MIN(PeopleSalary) 最小工资 from People
+join Department  on People.DepartmentId = Department.DepartmentId
+group by DepartmentName
+having AVG(PeopleSalary)>=10000
+order by AVG(PeopleSalary) desc;
+
+
+
+
+--5. 根据部门名称，然后根据职位名称，分组统计员工人数，员工工资总和，平均工资，最高工资和最低工资
+select  DepartmentName,RankName ,[Rank].RankId 职位等级 , COUNT(*) 员工人数,SUM(PeopleSalary) 工资总和, AVG(PeopleSalary) 平均工资, MAX(PeopleSalary) 最大工资,MIN(PeopleSalary) 最小工资 from people 
+join department on  People.DepartmentId = Department.DepartmentId
+join [Rank] on People.RankId = [Rank].RankId
+group by DepartmentName,RankName,[Rank].RankId
+
+
+--6.查询出巨蟹 6.22--7.22 的员工信息
+select * from people where 
+(MONTH(PeopleBirth)=6 and DAY(PeopleBirth)>=22) or  
+(MONTH(PeopleBirth)=7 and DAY(PeopleBirth)<=22)
+
+--7.查询所有员工信息，添加一列显示属相(鼠,牛,虎,兔,龙,蛇,马,羊,猴,鸡,狗,猪)
+select * ,
+case when datepart(YY,PeopleBirth)%12=0 then'鼠' 
+when datepart(YY,PeopleBirth)%12=1 then'牛' 
+when datepart(YY,PeopleBirth)%12=2 then'虎' 
+when datepart(YY,PeopleBirth)%12=3 then'兔' 
+when datepart(YY,PeopleBirth)%12=4 then'龙' 
+when datepart(YY,PeopleBirth)%12=5 then'蛇' 
+when datepart(YY,PeopleBirth)%12=6 then'马' 
+when datepart(YY,PeopleBirth)%12=7 then'羊' 
+when datepart(YY,PeopleBirth)%12=8 then'猴' 
+when datepart(YY,PeopleBirth)%12=9 then'鸡' 
+when datepart(YY,PeopleBirth)%12=10 then'狗' 
+when datepart(YY,PeopleBirth)%12=11 then'猪' 
+end as 属相
+from people ;
\ No newline at end of file
diff --git "a/18\351\231\210\351\271\217/\347\254\224\350\256\260/9-16\347\254\254\344\272\214\346\254\241\350\257\276\346\237\245\350\257\242.md" "b/18\351\231\210\351\271\217/\347\254\224\350\256\260/9-16\347\254\254\344\272\214\346\254\241\350\257\276\346\237\245\350\257\242.md"
new file mode 100644
index 0000000000000000000000000000000000000000..ef141a6232d91f3a0b742cf666e5fe4a776c4eb2
--- /dev/null
+++ "b/18\351\231\210\351\271\217/\347\254\224\350\256\260/9-16\347\254\254\344\272\214\346\254\241\350\257\276\346\237\245\350\257\242.md"
@@ -0,0 +1,19 @@
+## 绗簩娆¤鏌ヨ
+
+--淇濈暀灏忔暟鐐瑰悗2浣�
+
+--round(灏忔暟,淇濈暀浣嶆暟)
+
+--convert 02154.13200 decimal(5,2):淇濈暀灏忔暟鍚�2浣嶏紝鏈夋晥鏁板瓧鎬诲叡鏄�5
+
+--convert鍜宑ast 鍙互寮哄埗杞崲鏁版嵁绫诲瀷
+
+--count(*):绌哄�间篃缁熻 count(瀛楁)锛氬綋鍓嶅瓧娈电殑绌哄�间笉缁熻
+
+--鍒犻櫎鏁版嵁
+delete from 琛ㄥ悕 where 鍒楀悕=''
+
+--鍒犻櫎
+--drop 鍒犻櫎鏁村紶琛�
+--truncate鍒犻櫎鏁村紶琛紝琛ㄨ繕鍦�
+
diff --git a/README.en.md b/README.en.md
deleted file mode 100644
index ac31e94d7051efb27325dd6be9b67641b85572e6..0000000000000000000000000000000000000000
--- a/README.en.md
+++ /dev/null
@@ -1,36 +0,0 @@
-# SQL杩涢樁
-
-#### Description
-11
-
-#### Software Architecture
-Software architecture description
-
-#### Installation
-
-1.  xxxx
-2.  xxxx
-3.  xxxx
-
-#### Instructions
-
-1.  xxxx
-2.  xxxx
-3.  xxxx
-
-#### Contribution
-
-1.  Fork the repository
-2.  Create Feat_xxx branch
-3.  Commit your code
-4.  Create Pull Request
-
-
-#### Gitee Feature
-
-1.  You can use Readme\_XXX.md to support different languages, such as Readme\_en.md, Readme\_zh.md
-2.  Gitee blog [blog.gitee.com](https://blog.gitee.com)
-3.  Explore open source project [https://gitee.com/explore](https://gitee.com/explore)
-4.  The most valuable open source project [GVP](https://gitee.com/gvp)
-5.  The manual of Gitee [https://gitee.com/help](https://gitee.com/help)
-6.  The most popular members  [https://gitee.com/gitee-stars/](https://gitee.com/gitee-stars/)
diff --git a/README.md b/README.md
deleted file mode 100644
index 1c4b0e7c62868161068647925213862187205184..0000000000000000000000000000000000000000
--- a/README.md
+++ /dev/null
@@ -1,37 +0,0 @@
-# SQL杩涢樁
-
-#### 浠嬬粛
-11
-
-#### 杞欢鏋舵瀯
-杞欢鏋舵瀯璇存槑
-
-
-#### 瀹夎鏁欑▼
-
-1.  xxxx
-2.  xxxx
-3.  xxxx
-
-#### 浣跨敤璇存槑
-
-1.  xxxx
-2.  xxxx
-3.  xxxx
-
-#### 鍙備笌璐＄尞
-
-1.  Fork 鏈粨搴�
-2.  鏂板缓 Feat_xxx 鍒嗘敮
-3.  鎻愪氦浠ｇ爜
-4.  鏂板缓 Pull Request
-
-
-#### 鐗规妧
-
-1.  浣跨敤 Readme\_XXX.md 鏉ユ敮鎸佷笉鍚岀殑璇█锛屼緥濡� Readme\_en.md, Readme\_zh.md
-2.  Gitee 瀹樻柟鍗氬 [blog.gitee.com](https://blog.gitee.com)
-3.  浣犲彲浠� [https://gitee.com/explore](https://gitee.com/explore) 杩欎釜鍦板潃鏉ヤ簡瑙� Gitee 涓婄殑浼樼寮�婧愰」鐩�
-4.  [GVP](https://gitee.com/gvp) 鍏ㄧО鏄� Gitee 鏈�鏈変环鍊煎紑婧愰」鐩紝鏄患鍚堣瘎瀹氬嚭鐨勪紭绉�寮�婧愰」鐩�
-5.  Gitee 瀹樻柟鎻愪緵鐨勪娇鐢ㄦ墜鍐� [https://gitee.com/help](https://gitee.com/help)
-6.  Gitee 灏侀潰浜虹墿鏄竴妗ｇ敤鏉ュ睍绀� Gitee 浼氬憳椋庨噰鐨勬爮鐩� [https://gitee.com/gitee-stars/](https://gitee.com/gitee-stars/)