javaEEday07-DML-SQL1

mysql-day02.sql

@@ -0,0 +1,45 @@
+-- auto-generated definition
+create table tb_emp
+(
+    id          int unsigned auto_increment comment 'ID'
+        primary key,
+    username    varchar(20)                  not null comment '用户名',
+    password    varchar(32) default '123456' null comment '密码',
+    name        varchar(10)                  not null comment '姓名',
+    gender      tinyint unsigned             not null comment '性别, 说明: 1 男, 2 女',
+    image       varchar(300)                 null comment '图像',
+    job         tinyint unsigned             null comment '职位, 说明: 1 班主任,2 讲师, 3 学工主管, 4 教研主管',
+    entrydate   date                         null comment '入职时间',
+    dept_id     int unsigned                 null comment '部门ID',
+    create_time datetime                     not null comment '创建时间',
+    update_time datetime                     not null comment '修改时间',
+    constraint username
+        unique (username)
+)
+    comment '员工表';
+
+-- DML:数据操作语言
+-- DML : 插入数据 - insert
+-- 1. 为 tb_emp 表的 username, name, gender 字段插入值
+insert into tb_emp (username,name,gender,create_time,update_time)
+values('wuji','张无忌1',1,now(),now());
+
+-- 2. 为 tb_emp 表的 所有字段插入值
+insert into tb_emp values
+    (null,'zs','123','张三',1
+    ,'1.png',1,'2015-01-01',1,now(),now());
+
+insert into tb_emp
+(id, username, password, name, gender, image, job, entrydate, dept_id, create_time, update_time)
+values
+    (null,'zs1','1234','张三1',1
+    ,'1.png',1,'2015-01-01',1,now(),now());
+
+-- 3. 批量为 为 tb_emp 表的 username , name , gender 字段插入数据
+insert into tb_emp
+(username,name,gender,create_time,update_time)
+values
+    ('wuji2','张无忌2',1,now(),now()),
+    ('wuji3','张无忌3',1,now(),now()),
+    ('wuji4','张无忌4',1,now(),now())
+;