From 07440297cfd8780d92c90b9bc9e27a1a85ea777f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E6=9D=A8=E5=87=8C=E7=BF=94?= <963304364@qq.com> Date: Sun, 18 Sep 2022 09:14:10 +0000 Subject: [PATCH 1/3] =?UTF-8?q?=E6=96=B0=E5=BB=BA=20=E6=9D=A8=E5=87=8C?= =?UTF-8?q?=E7=BF=94=2022=2002?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- "\346\235\250\345\207\214\347\277\224 22 02/.keep" | 0 1 file changed, 0 insertions(+), 0 deletions(-) create mode 100644 "\346\235\250\345\207\214\347\277\224 22 02/.keep" diff --git "a/\346\235\250\345\207\214\347\277\224 22 02/.keep" "b/\346\235\250\345\207\214\347\277\224 22 02/.keep" new file mode 100644 index 0000000..e69de29 -- Gitee From c2f386365f9563f5fbdad90481ae102aef30b284 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E6=9D=A8=E5=87=8C=E7=BF=94?= <963304364@qq.com> Date: Sun, 18 Sep 2022 09:14:25 +0000 Subject: [PATCH 2/3] =?UTF-8?q?=E9=87=8D=E5=91=BD=E5=90=8D=20=E6=9D=A8?= =?UTF-8?q?=E5=87=8C=E7=BF=94=2022=20=E4=B8=BA=20=E6=9D=A8=E5=87=8C?= =?UTF-8?q?=E7=BF=94=2022=2001?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../.keep" => "\346\235\250\345\207\214\347\277\224 22 01/.keep" | 0 .../\344\275\234\344\270\232/student.sql" | 0 ...2020-9-16-\345\273\272\345\272\223\345\273\272\350\241\250.md" | 0 3 files changed, 0 insertions(+), 0 deletions(-) rename "\346\235\250\345\207\214\347\277\224 22/.keep" => "\346\235\250\345\207\214\347\277\224 22 01/.keep" (100%) rename "\346\235\250\345\207\214\347\277\224 22/\346\235\250\345\207\214\347\277\224 22/\344\275\234\344\270\232/student.sql" => "\346\235\250\345\207\214\347\277\224 22 01/\346\235\250\345\207\214\347\277\224 22/\344\275\234\344\270\232/student.sql" (100%) rename "\346\235\250\345\207\214\347\277\224 22/\346\235\250\345\207\214\347\277\224 22/\347\254\224\350\256\260/2020-9-16-\345\273\272\345\272\223\345\273\272\350\241\250.md" => "\346\235\250\345\207\214\347\277\224 22 01/\346\235\250\345\207\214\347\277\224 22/\347\254\224\350\256\260/2020-9-16-\345\273\272\345\272\223\345\273\272\350\241\250.md" (100%) diff --git "a/\346\235\250\345\207\214\347\277\224 22/.keep" "b/\346\235\250\345\207\214\347\277\224 22 01/.keep" similarity index 100% rename from "\346\235\250\345\207\214\347\277\224 22/.keep" rename to "\346\235\250\345\207\214\347\277\224 22 01/.keep" diff --git "a/\346\235\250\345\207\214\347\277\224 22/\346\235\250\345\207\214\347\277\224 22/\344\275\234\344\270\232/student.sql" "b/\346\235\250\345\207\214\347\277\224 22 01/\346\235\250\345\207\214\347\277\224 22/\344\275\234\344\270\232/student.sql" similarity index 100% rename from "\346\235\250\345\207\214\347\277\224 22/\346\235\250\345\207\214\347\277\224 22/\344\275\234\344\270\232/student.sql" rename to "\346\235\250\345\207\214\347\277\224 22 01/\346\235\250\345\207\214\347\277\224 22/\344\275\234\344\270\232/student.sql" diff --git "a/\346\235\250\345\207\214\347\277\224 22/\346\235\250\345\207\214\347\277\224 22/\347\254\224\350\256\260/2020-9-16-\345\273\272\345\272\223\345\273\272\350\241\250.md" "b/\346\235\250\345\207\214\347\277\224 22 01/\346\235\250\345\207\214\347\277\224 22/\347\254\224\350\256\260/2020-9-16-\345\273\272\345\272\223\345\273\272\350\241\250.md" similarity index 100% rename from "\346\235\250\345\207\214\347\277\224 22/\346\235\250\345\207\214\347\277\224 22/\347\254\224\350\256\260/2020-9-16-\345\273\272\345\272\223\345\273\272\350\241\250.md" rename to "\346\235\250\345\207\214\347\277\224 22 01/\346\235\250\345\207\214\347\277\224 22/\347\254\224\350\256\260/2020-9-16-\345\273\272\345\272\223\345\273\272\350\241\250.md" -- Gitee From 177b634743787a2ba7ccf2252e0ec7f80c0d3c27 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E6=9D=A8=E5=87=8C=E7=BF=94?= <963304364@qq.com> Date: Sun, 18 Sep 2022 09:15:28 +0000 Subject: [PATCH 3/3] =?UTF-8?q?=E6=9D=A8=E5=87=8C=E7=BF=94=2022?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: 杨凌翔 <963304364@qq.com> --- .../\344\275\234\344\270\232/test.sql" | 65 +++++++++++++++++++ ...37\346\202\211\350\257\255\346\263\225.md" | 5 ++ 2 files changed, 70 insertions(+) create mode 100644 "\346\235\250\345\207\214\347\277\224 22 02/\344\275\234\344\270\232/test.sql" create mode 100644 "\346\235\250\345\207\214\347\277\224 22 02/\347\254\224\350\256\260/2022-09-18-\347\206\237\346\202\211\350\257\255\346\263\225.md" diff --git "a/\346\235\250\345\207\214\347\277\224 22 02/\344\275\234\344\270\232/test.sql" "b/\346\235\250\345\207\214\347\277\224 22 02/\344\275\234\344\270\232/test.sql" new file mode 100644 index 0000000..03d5e5a --- /dev/null +++ "b/\346\235\250\345\207\214\347\277\224 22 02/\344\275\234\344\270\232/test.sql" @@ -0,0 +1,65 @@ +--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 +inner 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 +inner join Department on People.DepartmentId=Department.DepartmentId +inner join Rank on People.RankId=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(People.DepartmentId)人数,SUM(PeopleSalary)工资总和,AVG(PeopleSalary)平均工资,MAX(PeopleSalary)最高工资,MIN(PeopleSalary)最低工资 from People +inner 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(People.DepartmentId)人数,SUM(PeopleSalary)工资总和,AVG(PeopleSalary)平均工资,MAX(PeopleSalary)最高工资,MIN(PeopleSalary)最低工资 from People +inner 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,RankId,COUNT(People.DepartmentId)人数,SUM(PeopleSalary)工资总和,AVG(PeopleSalary)平均工资,MAX(PeopleSalary)最高工资,MIN(PeopleSalary)最低工资 from People +inner join Department on People.DepartmentId=Department.DepartmentId +group by RankId,DepartmentName + +--6.查询出巨蟹 6.22--7.22 的员工信息 + +select * from People where MONTH(PeopleBirth)+CONVERT(float,DAY(PeopleBirth))/100 between 6.22 and 7.22 + +--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 year(PeopleBirth)%12 =0 + then '猴' + when YEAR(PeopleBirth)%12=1 + then '鸡' + when YEAR(PeopleBirth)%12=2 + then '狗' + when YEAR(PeopleBirth)%12=3 + then '猪' + when YEAR(PeopleBirth)%12=4 + then '鼠' + when YEAR(PeopleBirth)%12=5 + then '牛' + when YEAR(PeopleBirth)%12=6 + then '虎' + when YEAR(PeopleBirth)%12=7 + then '兔' + when YEAR(PeopleBirth)%12=8 + then '龙' + when YEAR(PeopleBirth)%12=9 + then '蛇' + when YEAR(PeopleBirth)%12=10 + then '马' + when YEAR(PeopleBirth)%12=11 + then '羊' + end 生肖 from People \ No newline at end of file diff --git "a/\346\235\250\345\207\214\347\277\224 22 02/\347\254\224\350\256\260/2022-09-18-\347\206\237\346\202\211\350\257\255\346\263\225.md" "b/\346\235\250\345\207\214\347\277\224 22 02/\347\254\224\350\256\260/2022-09-18-\347\206\237\346\202\211\350\257\255\346\263\225.md" new file mode 100644 index 0000000..e77da7d --- /dev/null +++ "b/\346\235\250\345\207\214\347\277\224 22 02/\347\254\224\350\256\260/2022-09-18-\347\206\237\346\202\211\350\257\255\346\263\225.md" @@ -0,0 +1,5 @@ +掌握了以下2个MS SQL的新语法 + +identify 识别列 + +check 检查条件 \ No newline at end of file -- Gitee