From 23233b51aa10d8e67b1e68507d087883f898c333 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E2=80=9C=E5=AD=94=E5=87=AF=E8=BE=89=E2=80=9D?= <“2814283821@qq.com”> Date: Tue, 28 Feb 2023 23:40:44 +0800 Subject: [PATCH 1/3] =?UTF-8?q?=E4=BD=9C=E4=B8=9A?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../20230226\344\275\234\344\270\232.md" | 47 +++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 "44 \345\255\224\345\207\257\350\276\211/20230226\344\275\234\344\270\232.md" diff --git "a/44 \345\255\224\345\207\257\350\276\211/20230226\344\275\234\344\270\232.md" "b/44 \345\255\224\345\207\257\350\276\211/20230226\344\275\234\344\270\232.md" new file mode 100644 index 0000000..c802d98 --- /dev/null +++ "b/44 \345\255\224\345\207\257\350\276\211/20230226\344\275\234\344\270\232.md" @@ -0,0 +1,47 @@ +| | | | +| ------------------------------------------------------------ | ------------------------------------------------------------ | ------------------------------------------------------------ | +| 雇员编号为主键； | | | +| [285](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_285_285) | [285](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_285_285) | * 部门编号为外键，外键约束等级为（on update cascade 和on delete set null）； | +| [286](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_286_286) | [286](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_286_286) | * 性别默认为男； | +| [287](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_287_287) | | mysql> CREATE TABLE emoloyee( | +| [288](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_288_287) | | -> empid int PRIMARY key , | +| | [287](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_289_287) | mysql> set @@foreign_key_checks =0; | +| | [288](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_289_288) | Query OK, 0 rows affected (0.00 sec) | +| | [289](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_289_289) | | +| | [290](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_289_290) | mysql> create table emoloyee( | +| | [291](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_289_291) | -> empid int primary key, | +| [289](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_289_292) | [292](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_289_292) | -> name varchar(10), | +| [290](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_290_293) | | -> sex enum('男','女') not null DEFAULT '男', | +| [291](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_291_293) | | -> title varchar(10), | +| | [293](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_292_293) | -> sex varchar(1) default'男', | +| | [294](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_292_294) | -> title int, | +| [292](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_292_295) | [295](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_292_295) | -> birthday date, | +| [293](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_293_296) | [296](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_293_296) | -> depid int, | +| [294](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_294_297) | | -> constraint fk_department | +| [295](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_295_297) | | -> FOREIGN key (depid) REFERENCES department(depid) on UPDATE cascade on delete set null | +| [296](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_296_297) | | -> )comment 'emoloyee' ; | +| | [297](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_297_297) | -> foreign key(depid) references department(depid) on update cascade on delete set null | +| | [298](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_297_298) | -> ) comment 'emoloyee'; | +| | [299](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_297_299) | Query OK, 0 rows affected (0.06 sec) | +| [297](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_297_300) | [300](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_297_300) | C． 工资表（salary）：雇员编号（empid），基本工资（basesalary），职务工资（titlesalary），扣除（deduction）。其中雇员编号为主键。 | +| [298](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_298_301) | [301](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_298_301) | 3、给工资表（salary）的雇员编号（empid）增加外键约束，外键约束等级为（on update cascade 和on delete cascade）: | +| [299](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_299_302) | | mysql> CREATE table salary( | +| [300](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_300_302) | | -> empid int PRIMARY KEY, | +| [301](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_301_302) | | -> basesalary int , | +| [302](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_302_302) | | -> titlesalary int , | +| [303](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_303_302) | | -> deduction int null, | +| [304](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_304_302) | | -> constraint fk_emoloyee | +| [305](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_305_302) | | -> FOREIGN KEY (empid) REFERENCES emoloyee(empid) on update cascade on delete cascade | +| | [302](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_306_302) | mysql> create table salary( | +| | [303](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_306_303) | -> empid int primary key, | +| | [304](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_306_304) | -> basesalary varchar(10), | +| | [305](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_306_305) | -> titlesalary varchar(20), | +| | [306](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_306_306) | -> deduction int | +| [306](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_306_307) | [307](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_306_307) | -> ) comment 'salary' ; | +| | [308](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_307_308) | Query OK, 0 rows affected (0.05 sec) | +| | [309](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_307_309) | mysql> alter table salary | +| | [310](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_307_310) | -> add foreign key(empid) | +| | [311](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_307_311) | -> references emoloyee(empid); | +| | [312](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_307_312) | Query OK, 0 rows affected (0.01 sec) | +| | [313](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_307_313) | Records: 0 Duplicates: 0 Warnings: 0 | +| | [314](https://gitee.com/class-22-class-03/mysql-base/pulls/200/files#85234c4af7c0e9b461489bb72db7f4ad5cca2a9b_307_314) | | \ No newline at end of file -- Gitee From 7420c475ec65bfe96eec50a58179e41a17558650 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E2=80=9C=E5=AD=94=E5=87=AF=E8=BE=89=E2=80=9D?= <“2814283821@qq.com”> Date: Sun, 5 Mar 2023 10:38:48 +0800 Subject: [PATCH 2/3] =?UTF-8?q?=E4=BD=9C=E4=B8=9A?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../20230303\344\275\234\344\270\232.md" | 144 ++++++++++++++++++ 1 file changed, 144 insertions(+) create mode 100644 "44 \345\255\224\345\207\257\350\276\211/20230303\344\275\234\344\270\232.md" diff --git "a/44 \345\255\224\345\207\257\350\276\211/20230303\344\275\234\344\270\232.md" "b/44 \345\255\224\345\207\257\350\276\211/20230303\344\275\234\344\270\232.md" new file mode 100644 index 0000000..a94db80 --- /dev/null +++ "b/44 \345\255\224\345\207\257\350\276\211/20230303\344\275\234\344\270\232.md" @@ -0,0 +1,144 @@ +| ``mysql | | | +| ------- | ------------------------------------------------------------ | ------------------------------------------------------------ | +| | [2](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_2) | | +| | [3](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_3) | show databases; | +| | [4](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_4) | create database mxdx charset utf8; | +| | [5](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_5) | use mxdx; | +| | [6](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_6) | create database sb charset utf8; | +| | [7](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_7) | use sb; | +| | [8](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_8) | create table student( | +| | [9](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_9) | sno varchar(20) not null, | +| | [10](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_10) | sname varchar(20) not null, | +| | [11](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_11) | ssex varchar(20) not null, | +| | [12](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_12) | sbirthday datetime, | +| | [13](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_13) | class varchar(20) | +| | [14](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_14) | ); | +| | [15](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_15) | | +| | [16](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_16) | create table course( | +| | [17](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_17) | cno varchar(20) not null, | +| | [18](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_18) | cname varchar(20) not null, | +| | [19](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_19) | tno varchar(20) not null | +| | [20](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_20) | ); | +| | [21](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_21) | | +| | [22](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_22) | alter table course add foreign key(tno) references teacher(tno); | +| | [23](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_23) | | +| | [24](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_24) | create table score( | +| | [25](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_25) | sno varchar(20) not null, | +| | [26](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_26) | cno varchar(20) not null, | +| | [27](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_27) | degree decimal(4,1) | +| | [28](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_28) | ); | +| | [29](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_29) | | +| | [30](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_30) | create table teacher( | +| | [31](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_31) | tno varchar(20) not null primary key, | +| | [32](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_32) | tname varchar(20) not null, | +| | [33](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_33) | tsex varchar(20) not null, | +| | [34](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_34) | tbirthday datetime, | +| | [35](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_35) | prof varchar(20), | +| | [36](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_36) | depart varchar(20) not null | +| | [37](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_37) | ); | +| | [38](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_38) | | +| | [39](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_39) | insert into student values | +| | [40](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_40) | (108,'曾华','男','1977-9-1',95033), | +| | [41](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_41) | (105,'匡明','男','1975-10-2',95031), | +| | [42](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_42) | (107,'王丽','女','1976-1-23',95033), | +| | [43](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_43) | (101,'李军','男','1976-2-20',95033), | +| | [44](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_44) | (109,'王芳','女','1975-2-10',95031), | +| | [45](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_45) | (103,'陆军','男','1974-6-3',95031); | +| | [46](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_46) | | +| | [47](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_47) | insert into course values | +| | [48](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_48) | (3-105,'计算机导论',825), | +| | [49](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_49) | (3-245,'操作系统',804), | +| | [50](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_50) | (6-166,'数字电路',856), | +| | [51](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_51) | (9-888,'高等数学',831); | +| | [52](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_52) | | +| | [53](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_53) | | +| | [54](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_54) | primary key (Sno,Cno), | +| | [55](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_55) | key Cno (Cno), | +| | [56](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_56) | CONSTRAINT Cno FOREIGN KEY (Cno) REFERENCES course (Cno), | +| | [57](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_57) | CONSTRAINT Sno FOREIGN KEY (Sno) REFERENCES student (Sno) | +| | [58](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_58) | ) ENGINE=InnoDB DEFAULT CHARSET=utf8; | +| | [59](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_59) | | +| | [60](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_60) | insert into Score values | +| | [61](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_61) | ('103','3-245','86'), | +| | [62](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_62) | ('105','3-245','75'), | +| | [63](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_63) | ('109','3-245','68'), | +| | [64](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_64) | ('103','3-105','92'), | +| | [65](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_65) | ('105','3-105','88'), | +| | [66](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_66) | ('109','3-105','76'), | +| | [67](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_67) | ('101','3-105','64'), | +| | [68](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_68) | ('107','3-105','91'), | +| | [69](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_69) | ('108','3-105','78'), | +| | [70](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_70) | ('101','6-166','85'), | +| | [71](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_71) | ('107','6-166','79'), | +| | [72](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_72) | ('108','6-166','81'); | +| | [73](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_73) | | +| | [74](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_74) | create table Teacher( | +| | [75](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_75) | Tno varchar(20) not null primary key , | +| | [76](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_76) | Tname varchar(20) not null , | +| | [77](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_77) | Tsex varchar(20) not null , | +| | [78](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_78) | Tbirthday datetime, | +| | [79](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_79) | Prof varchar(20), | +| | [80](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_80) | Depart varchar(20) | +| | [81](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_81) | | +| | [82](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_82) | ); | +| | [83](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_83) | insert into Teacher values | +| | [84](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_84) | ('804','李诚','男','1958-12-2','副教授','计算机系'), | +| | [85](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_85) | ('856','张旭','男','1969-3-12','讲师','电子工程系'), | +| | [86](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_86) | ('825','王萍','女','1972-5-5','助教','计算机系'), | +| | [87](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_87) | ('831','刘冰','女','1977-8-14','助教','电子工程系'); | +| | [88](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_88) | -- 4. 查询 | +| | [89](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_89) | -- ①　查询Score表中的最高分的学生学号和课程号。 | +| | [90](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_90) | select max(degree) sno, cno from score; | +| | [91](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_91) | -- ②　查询所有学生的Sname、Cno和Degree列。 | +| | [92](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_92) | select sname 姓名,cno,degree from student, score; | +| | [93](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_93) | -- ③　查询所有学生的Sno、Cname和Degree列。 | +| | [94](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_94) | select sno,cname,degree from course,score; | +| | [95](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_95) | -- ④　查询所有学生的Sname、Cname和Degree列。 | +| | [96](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_96) | select sname 姓名,cname,degree from course,score,student; | +| | [97](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_97) | -- ⑤　查询“95033”班学生的平均分。 | +| | [98](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_98) | select avg(degree) from student,score where class=95033; | +| | [99](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_99) | -- ⑥　查询选修“3-105”课程的成绩高于“109”号同学成绩的所有同学的记录。 | +| | [100](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_100) | select * from score where cno='3-105' and degree>76; | +| | [101](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_101) | -- ⑦　查询score中选学多门课程的同学中分数为非最高分成绩的记录。 | +| | [102](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_102) | (select max(degree) from score); | +| | [103](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_103) | select degree from score where degree != (select max(degree) from score)group by Degree; | +| | [104](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_104) | -- ⑧　查询成绩高于学号为“109”、课程号为“3-105”的成绩的所有记录。 | +| | [105](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_105) | select * from student s,score se where s.Sno=se.Sno and degree> (select degree from score where sno='109' and cno='3-105'); | +| | [106](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_106) | -- ⑨　查询和学号为108的同学同年出生的所有学生的Sno、Sname和Sbirthday列。 | +| | [107](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_107) | select year(sbirthday) from student where sno='108'; | +| | [108](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_108) | select sno ,sname,sbirthday from student where year(sbirthday)=(select year(sbirthday) from student where sno='108'); | +| | [109](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_109) | -- ⑩　查询“张旭“教师任课的学生成绩。 | +| | [110](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_110) | select * from teacher where Tname='张旭'; | +| | [111](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_111) | select degree from teacher t ,course c ,score s where t.tno=c.Tno and c.cno=s.cno and t.tname='张旭'; | +| | [112](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_112) | -- 11　查询选修某课程的同学人数多于5人的教师姓名。 | +| | [113](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_113) | select s.cno from teacher t ,course c ,score s where t.tno=c.Tno and c.cno=s.cno group by c.cno having count(s.Cno)>5; | +| | [114](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_114) | -- 12　查询出“计算机系“教师所教课程的成绩表。 | +| | [115](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_115) | select tname ,prof from teacher where depart='计算机系' | +| | [116](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_116) | union | +| | [117](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_117) | select tname ,prof from teacher where depart='电子工程系'; | +| | [118](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_118) | -- 13　查询“计算机系”与“电子工程系“不同职称的教师的Tname和Prof。 | +| | [119](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_119) | select degree from score where cno='3-245'; | +| | [120](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_120) | select * from score where Cno='3-105' and degree >= all (select degree from score where cno='3-245') order by degree desc ; | +| | [121](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_121) | -- 14　查询选修编号为“3-105“课程且成绩至少高于选修编号为“3-245”的同学的Cno、Sno和Degree,并按Degree从高到低次序排序。 | +| | [122](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_122) | select * from score where cno='3-105' and degree > all (select degree from score where cno='3-245'); | +| | [123](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_123) | -- 16　查询成绩比该课程平均成绩低的同学的成绩表。 | +| | [124](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_124) | select avg(degree) from score; | +| | [125](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_125) | select degree from score where degree< (select avg(degree) from score); | +| | [126](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_126) | | +| | [127](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_127) | -- 17　查询所有任课教师的Tname和Depart. | +| | [128](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_128) | select tname,depart from teacher; | +| | [129](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_129) | -- 18　查询所有未讲课的教师的Tname和Depart. | +| | [130](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_130) | select tname,depart from teacher left join course c on teacher.tno = c.tno left join score s on c.cno = s.cno where sno is null ; | +| | [131](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_131) | | +| | [132](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_132) | -- 19　查询“男”教师及其所上的课程。 | +| | [133](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_133) | select t.*,c.cname from teacher t ,course c where t.tno= c.tno and t.tsex='男'; | +| | [134](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_134) | -- 20　查询最高分同学的Sno、Cno和Degree列。 | +| | [135](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_135) | select * from score where degree=(select max(fegree) from score); | +| | [136](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_136) | -- 21　查询和“李军”同性别的所有同学的Sname. | +| | [137](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_137) | select sname from student where ssex= (select ssex from student where sname='李军'); | +| | [138](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_138) | -- 22　查询和“李军”同性别并同班的同学Sname. | +| | [139](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_139) | select sname from student where ssex= (select ssex from student where sname='李军') and class=(select class from student where sname='李军'); | +| | [140](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_140) | | +| | [141](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_141) | -- 23　查询所有选修“计算机导论”课程的“男”同学的成绩表 | +| | [142](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_142) | select ssex,cname,degree from student s,course c,score se where s.sno=se.sno and se.cno=c.cno and cname='计算机导论' and ssex='男'; | +| | [143](https://gitee.com/zhangjunhao666288/mysql-base/commit/95335e4948d397ac4258f2bb8fd0ed7d801c9534#229c59438c60fb9719e0661d2ec5dbf9c29cb473_0_143) | ``` | \ No newline at end of file -- Gitee From 3ec69fad12340841471cb7138ca3f22a2fa85523 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E2=80=9C=E5=AD=94=E5=87=AF=E8=BE=89=E2=80=9D?= <“2814283821@qq.com”> Date: Tue, 7 Mar 2023 23:10:08 +0800 Subject: [PATCH 3/3] =?UTF-8?q?=E4=BD=9C=E4=B8=9A?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../20230335\344\275\234\344\270\232.md" | 84 +++++++++++++++++++ 1 file changed, 84 insertions(+) create mode 100644 "44 \345\255\224\345\207\257\350\276\211/20230335\344\275\234\344\270\232.md" diff --git "a/44 \345\255\224\345\207\257\350\276\211/20230335\344\275\234\344\270\232.md" "b/44 \345\255\224\345\207\257\350\276\211/20230335\344\275\234\344\270\232.md" new file mode 100644 index 0000000..40ac12f --- /dev/null +++ "b/44 \345\255\224\345\207\257\350\276\211/20230335\344\275\234\344\270\232.md" @@ -0,0 +1,84 @@ +| ```mysql | | | +| -------- | ------------------------------------------------------------ | ------------------------------------------------------------ | +| | [2](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_2) | CREATE DATABASE TEXT charset utf8; | +| | [3](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_3) | use text; | +| | [4](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_4) | CREATE table stuinfo( | +| | [5](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_5) | stuNo VARCHAR(10) primary key, | +| | [6](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_6) | stuName VARCHAR(10), | +| | [7](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_7) | stuSex VARCHAR(10), | +| | [8](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_8) | stuAge VARCHAR(10), | +| | [9](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_9) | stuAddress VARCHAR(20), | +| | [10](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_10) | stuSeat INT | +| | [11](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_11) | ); | +| | [12](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_12) | CREATE table stuExam( | +| | [13](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_13) | examNo int primary key auto_increment, | +| | [14](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_14) | stuNo VARCHAR(10), | +| | [15](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_15) | writtenExam int, | +| | [16](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_16) | labExam INT | +| | [17](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_17) | ); | +| | [18](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_18) | CREATE table stuMarks( | +| | [19](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_19) | examNo int primary key auto_increment, | +| | [20](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_20) | stuID VARCHAR(10), | +| | [21](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_21) | score INT | +| | [22](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_22) | ); | +| | [23](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_23) | alter table stuExam add foreign key (stuNO) references stuinfo(stuNO); | +| | [24](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_24) | alter table stuMarks add foreign key (examNo) references stuExam(examNo); | +| | [25](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_25) | | +| | [26](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_26) | | +| | [27](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_27) | INSERT into stuinfo VALUES | +| | [28](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_28) | ('s2501','张秋利','男',20,'美国硅谷',1), | +| | [29](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_29) | ('s2502','李斯文','女',18,'湖北武汉',2), | +| | [30](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_30) | ('s2503','马文才','男',18,'湖南长沙',3), | +| | [31](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_31) | ('s2504','欧阳俊雄','女',21,'湖北武汉',4), | +| | [32](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_32) | ('s2505','梅超风','男',20,'湖北武汉',5), | +| | [33](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_33) | ('s2506','陈旋风','男',19,'美国硅谷',6); | +| | [34](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_34) | | +| | [35](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_35) | INSERT INTO stuExam VALUES | +| | [36](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_36) | (1,'s2501',50,70), | +| | [37](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_37) | (2,'s2502',60,65), | +| | [38](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_38) | (3,'s2503',86,70), | +| | [39](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_39) | (4,'s2504',40,80), | +| | [40](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_40) | (5,'s2505',70,85), | +| | [41](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_41) | (6,'s2506',85,90); | +| | [42](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_42) | | +| | [43](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_43) | INSERT into stuMarks VALUES | +| | [44](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_44) | (1,'s2501',88), | +| | [45](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_45) | (2,'s2501',92), | +| | [46](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_46) | (3,'s2501',53), | +| | [47](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_47) | (4,'s2502',60), | +| | [48](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_48) | (5,'s2502',99), | +| | [49](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_49) | (6,'s2503',82); | +| | [50](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_50) | | +| | [51](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_51) | | +| | [52](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_52) | # 1.查询出年龄比班上平均年龄大的学生的信息 | +| | [53](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_53) | select * from stuinfo where stuAge>(select avg(stuAge) from stuinfo); | +| | [54](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_54) | # 2.查询出每个学生的学号，姓名，性别和选修课程的最高分（stuMarks） | +| | [55](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_55) | select stuNo,stuName,stuSex,max(score) from stuinfo a left join stumarks b on a.stuNo=b.stuID group by stuNo; | +| | [56](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_56) | # 3.查询出每个学生的学号，姓名，性别和考试平均分（stuExam） | +| | [57](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_57) | select a.stuNo,a.stuName,a.stuSex,(b.writtenExam+b.labExam)/2 平均分 from stuinfo a left join stuexam b on a.stuNo=b.stuNo; | +| | [58](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_58) | # 4.查询性别是男并且年龄大于等于20的学生的信息(用两种方法实现：普通查询和子查询) | +| | [59](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_59) | select * from stuinfo where stuSex='男' and stuAge>=20; | +| | [60](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_60) | # 5.查询出年龄比所有男生年龄都大的女生的信息 | +| | [61](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_61) | select * from stuinfo where stuAge>(select max(stuAge) from stuinfo where stuSex='男'); | +| | [62](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_62) | # 6.查询出所有选修课程都及格的学生的信息 （stuMarks） | +| | [63](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_63) | SELECT a.* FROM stuinfo a LEFT JOIN stumarks b on a.stuNo=b.stuID GROUP BY stuID HAVING min(score)>=60; | +| | [64](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_64) | # 7.查询出参加考试的学生的信息（用表连接，in二种方法做）（stuMarks） | +| | [65](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_65) | SELECT * FROM stuinfo a RIGHT JOIN stumarks b on a.stuNO=b.stuID GROUP BY stuID; | +| | [66](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_66) | SELECT * FROM stuinfo WHERE stuNo in (SELECT stuID FROM stumarks GROUP BY stuID); | +| | [67](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_67) | # 8.查询出没有参加考试的学生的信息（用表连接，in二种方法做）（stuMarks） | +| | [68](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_68) | SELECT a.* FROM stuinfo a LEFT JOIN stumarks b on a.stuNO=b.stuID WHERE score is null; | +| | [69](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_69) | select * from stuinfo where stuNo not in(select stuID from stumarks group by stuID); | +| | [70](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_70) | # 9.将有一门成绩成绩大于90分的学生的基本信息查询出来（stuMarks） | +| | [71](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_71) | SELECT a.* FROM stuinfo a LEFT JOIN stumarks b on a.stuNO=b.stuID GROUP BY stuID HAVING max(score)>90; | +| | [72](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_72) | # 10.查询出平均成绩在80分以上的学生的基本信息（stuMarks） | +| | [73](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_73) | SELECT * FROM stuinfo a LEFT JOIN stumarks b on a.stuNO=b.stuID GROUP BY stuID HAVING avg(score)>80; | +| | [74](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_74) | # 11.查询出某同学所有考试成绩比“张秋利”同学所有分数都高的学生基本信息（stuMarks） | +| | [75](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_75) | SELECT * FROM stuinfo a LEFT JOIN stumarks b on a.stuNo=b.stuID WHERE score>(SELECT max(score)FROM stumarks WHERE stuID='s2501') AND stuID!='s2501'; | +| | [76](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_76) | # 12.查询出某同学所有考试成绩只需要比“张秋利”同学某个分数高的学生基本信息（stuMarks） | +| | [77](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_77) | SELECT * FROM stuinfo a LEFT JOIN stumarks b on a.stuNo=b.stuID WHERE score>(SELECT min(score)FROM stumarks WHERE stuID='s2501') AND stuID!='s2501' GROUP BY stuID; | +| | [78](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_78) | # 13.查询班上比所有男生年龄都要大的女生的信息 | +| | [79](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_79) | select * from stuinfo where stuAge>(select max(stuAge) from stuinfo where stuSex='男'); | +| | [80](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_80) | # 14.查询出只是比某个男生年龄大的女生的信息 | +| | [81](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_81) | select * from stuinfo where stuSex='女' and stuAge>(select min(stuAge) from stuinfo where stuSex='男'); | +| | [82](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_82) | | +| | [83](https://gitee.com/jiang-weishan/mysql-base/commit/8d480a0eba0f43edd5d504e0eee3f5630d85f5f8#2e5cda6ee3215e6938e4c91e7b95ad5836c93032_0_83) | ``` | \ No newline at end of file -- Gitee