MySQL數(shù)據(jù)庫概述及數(shù)據(jù)準(zhǔn)備
MySQL數(shù)據(jù)庫常用命令
MySQL數(shù)據(jù)庫查看表結(jié)構(gòu)
MySQL查詢字段
MySQL條件查詢
MySQL排序
MySQL函數(shù)
MySQL分組函數(shù)/聚合函數(shù)/多行處理函數(shù)
- MySQL COUNT函數(shù)與MySQL聚合函數(shù)
- MySQL SUM函數(shù)與MySQL AVG函數(shù)
- MySQL Max()函數(shù)與MySQL MIN函數(shù)
MySQL分組查詢
MySQL連接查詢
MySQL子查詢
MySQL UNION
MySQL中l(wèi)imit的用法
MySQL表
- MySQL創(chuàng)建表
- MySQL添加表字段、修改表字段及刪除表字段
- MySQL添加表數(shù)據(jù)、修改表數(shù)據(jù)及刪除表數(shù)據(jù)
- MySQL創(chuàng)建表并添加約束
- MySQL實(shí)例教程：t_student和t_classes完整示例
- MySQL添加約束、刪除約束及修改約束
MySQL存儲(chǔ)引擎
MySQL事務(wù)
MySQL索引
MySQL視圖
MySQL DBA命令
MySQL數(shù)據(jù)庫設(shè)計(jì)的三大范式
MySQL數(shù)據(jù)庫練習(xí)題
MySQL實(shí)例教程：t_student和t_classes完整示例
drop table if exists t_classes;
create table t_classes(
classes_id int (3),
classes_name varchar(30) not null,
constraint pk_classes_id primary key(classes_id)
)
drop table if exists t_student;
create table t_student(
student_id int(10),
student_name varchar(50) not null,
sex char(2) not null,
birthday date not null,
email varchar(30) unique,
classes_id int (3) not null,
constraint pk_student_id primary key(student_id),
constraint fk_classes_id foreign key(classes_id) references t_classes(classes_id)
)
