From 69674c56722466f10c6ae8b6e3c6471d2d985c80 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E9=99=88=E6=AD=A3=E6=A5=A0?= <12461668+kkkjj2222222256@user.noreply.gitee.com> Date: Wed, 6 Sep 2023 14:13:06 +0000 Subject: [PATCH 1/7] =?UTF-8?q?=E6=96=B0=E5=BB=BA=20=E9=99=88=E6=AD=A3?= =?UTF-8?q?=E6=A5=A0?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- "\351\231\210\346\255\243\346\245\240/.keep" | 0 1 file changed, 0 insertions(+), 0 deletions(-) create mode 100644 "\351\231\210\346\255\243\346\245\240/.keep" diff --git "a/\351\231\210\346\255\243\346\245\240/.keep" "b/\351\231\210\346\255\243\346\245\240/.keep" new file mode 100644 index 0000000..e69de29 -- Gitee From e6af8d5f5d305453f580783234d9a8122c2b2d46 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E9=99=88=E6=AD=A3=E6=A5=A0?= <12461668+kkkjj2222222256@user.noreply.gitee.com> Date: Wed, 6 Sep 2023 14:13:28 +0000 Subject: [PATCH 2/7] =?UTF-8?q?=E5=88=A0=E9=99=A4=E6=96=87=E4=BB=B6=20?= =?UTF-8?q?=E9=99=88=E6=AD=A3=E6=A5=A0/.keep?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- "\351\231\210\346\255\243\346\245\240/.keep" | 0 1 file changed, 0 insertions(+), 0 deletions(-) delete mode 100644 "\351\231\210\346\255\243\346\245\240/.keep" diff --git "a/\351\231\210\346\255\243\346\245\240/.keep" "b/\351\231\210\346\255\243\346\245\240/.keep" deleted file mode 100644 index e69de29..0000000 -- Gitee From a410093032b92ce96302fac0a7f02a4e51160b13 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E9=99=88=E6=AD=A3=E6=A5=A0?= <12461668+kkkjj2222222256@user.noreply.gitee.com> Date: Wed, 6 Sep 2023 14:26:29 +0000 Subject: [PATCH 3/7] =?UTF-8?q?=20=E9=99=88=E6=AD=A3=E6=A5=A0.?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: 陈正楠 <12461668+kkkjj2222222256@user.noreply.gitee.com> --- "\351\231\210\346\255\243\346\245\240" | 0 1 file changed, 0 insertions(+), 0 deletions(-) create mode 100644 "\351\231\210\346\255\243\346\245\240" diff --git "a/\351\231\210\346\255\243\346\245\240" "b/\351\231\210\346\255\243\346\245\240" new file mode 100644 index 0000000..e69de29 -- Gitee From f298fbd64c29a8c0eb12e63d90229923d1859187 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E9=99=88=E6=AD=A3=E6=A5=A0?= <12461668+kkkjj2222222256@user.noreply.gitee.com> Date: Wed, 6 Sep 2023 14:27:04 +0000 Subject: [PATCH 4/7] =?UTF-8?q?=E5=88=A0=E9=99=A4=E6=96=87=E4=BB=B6=20?= =?UTF-8?q?=E9=99=88=E6=AD=A3=E6=A5=A0?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- "\351\231\210\346\255\243\346\245\240" | 0 1 file changed, 0 insertions(+), 0 deletions(-) delete mode 100644 "\351\231\210\346\255\243\346\245\240" diff --git "a/\351\231\210\346\255\243\346\245\240" "b/\351\231\210\346\255\243\346\245\240" deleted file mode 100644 index e69de29..0000000 -- Gitee From 071d8ec4e3a3dad1236b6643fdb226b4d5dc6ffe Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E9=99=88=E6=AD=A3=E6=A5=A0?= <12461668+kkkjj2222222256@user.noreply.gitee.com> Date: Wed, 6 Sep 2023 14:27:22 +0000 Subject: [PATCH 5/7] =?UTF-8?q?=E6=96=B0=E5=BB=BA=20=E9=99=88=E6=AD=A3?= =?UTF-8?q?=E6=A5=A0?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- "\351\231\210\346\255\243\346\245\240/.keep" | 0 1 file changed, 0 insertions(+), 0 deletions(-) create mode 100644 "\351\231\210\346\255\243\346\245\240/.keep" diff --git "a/\351\231\210\346\255\243\346\245\240/.keep" "b/\351\231\210\346\255\243\346\245\240/.keep" new file mode 100644 index 0000000..e69de29 -- Gitee From d3b375e176d73190008b8766e0f001e911a8e1df Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E9=99=88=E6=AD=A3=E6=A5=A0?= <12461668+kkkjj2222222256@user.noreply.gitee.com> Date: Wed, 6 Sep 2023 14:31:40 +0000 Subject: [PATCH 6/7] =?UTF-8?q?=E9=99=88=E6=AD=A3=E6=A5=A0?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: 陈正楠 <12461668+kkkjj2222222256@user.noreply.gitee.com> --- .../20230906.md" | 120 ++++++++++++++++++ 1 file changed, 120 insertions(+) create mode 100644 "\351\231\210\346\255\243\346\245\240/20230906.md" diff --git "a/\351\231\210\346\255\243\346\245\240/20230906.md" "b/\351\231\210\346\255\243\346\245\240/20230906.md" new file mode 100644 index 0000000..c4d3c96 --- /dev/null +++ "b/\351\231\210\346\255\243\346\245\240/20230906.md" @@ -0,0 +1,120 @@ +```mysql +create DATABASE school charset utf8; + +use school; + + +create table college( +college_id int PRIMARY key, +college_name varchar(10) +); + +insert into college values +(1,'软工学院'); +(2,'智能学院'); + + + +create table profe( +profe_id int PRIMARY key, +profe_name varchar(10), +college_id int, +FOREIGN key(col_id) REFERENCES college(college_id) +); + +insert into profe values +(1,'软件技术',1); +(2,'软件技术',2) + + +create table class( +class_id int , +class_name varchar(10), +profe_id int, +FOREIGN key(profe_id) REFERENCES profe(profe_id) +); + +insert into class values +(1,'一班',1), +(2,'二班',1), +(3,'三班',1); + + + +create table student( +student_id int PRIMARY key, +student_name varchar(10), +class_id int, +FOREIGN key(class_id) REFERENCES class(class_id) +); + +insert into student values +(1,'小黄',1), +(2,'小粉',2), +(3,'小紫',3); + +create table course( +course_id int , +course_name varchar(10) +); + +insert into course values +(1,'JAVA'), +(2,'MYSQL'), +(3,'c++'); + + + + +create table ke( +kecheng_time varchar(10), +class_id int, +FOREIGN key(class_id) REFERENCES class(class_id) +); + + +insert into ke values +('周一',1), +('周二',2), +('周三',3); + + +create table teacher( +teacher_id int, +teacher_name varchar(10), +couse_id int, +FOREIGN key(couse_id) REFERENCES course(couse_id) +); + +insert into teacher values +(1,'大大',1), +(2,'水水',2), +(3,'低低',3); + + + + + +笔记 + +一对一的关系 + +将其中任一表中的主键，放到另一个表当主键 + +一对多的关系 + +将一所在的表的主键放到多的表当外键 + +多对多的关系 + +必须第三张表，将前面两个表的主键放进来当外键 + + + + +``` + + + + + -- Gitee From f112cdc5cd5cd327f8d8875f3703e74e22d8cbf7 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E9=99=88=E6=AD=A3=E6=A5=A0?= <12461668+kkkjj2222222256@user.noreply.gitee.com> Date: Wed, 6 Sep 2023 14:40:02 +0000 Subject: [PATCH 7/7] =?UTF-8?q?=E9=99=88=E6=AD=A3=E6=A5=A0?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: 陈正楠 <12461668+kkkjj2222222256@user.noreply.gitee.com> --- "\351\231\210\346\255\243\346\245\240/20230905.md" | 14 ++++++++++++++ 1 file changed, 14 insertions(+) create mode 100644 "\351\231\210\346\255\243\346\245\240/20230905.md" diff --git "a/\351\231\210\346\255\243\346\245\240/20230905.md" "b/\351\231\210\346\255\243\346\245\240/20230905.md" new file mode 100644 index 0000000..f5819aa --- /dev/null +++ "b/\351\231\210\346\255\243\346\245\240/20230905.md" @@ -0,0 +1,14 @@ +``` +心得； + +学习到了新知识，可以使用vip解析，获得破解版本。 +了解到盘搜搜这个好东西 可以 共享到好多的资源。 +学到了visio软件 +对自己新的学期有了新的目标 +知识越来越深入，要加强学习，不断努力。希望自己可以持之以恒 +``` + + + + + -- Gitee