SpringBoot教学补充资料1-基础SQL语句

#查询所有内容
select * from employee
select (属性1,属性2,...) from 表名
#通过id查询
select * from employee where uid = 1
select (属性1,属性2,...) from 表名 where 属性 = 指定的属性值

#增加
insert into employee (uid, uname, uage, uposition) values (8,'小黑',38,'实习生')
insert into 表名 (属性1,属性2,...) values (属性值1,属性值2,...)

#更新
update employee set uname = '小白', uage = 37, uposition = 'boss' where uid = 8
update 表名 set 属性1 = 属性值1, 属性2 = 属性值2,...  where 属性 = 指定的属性值

#删除
delete from employee where uid = 1
delete from 表名 where 属性 = 指定的属性值