WHERE语句 === 使用where语句来设定select,update,delete语句数据抽出条件 ## 实战 ``` > select * from users; > select * from users where score > 20 ; > select * from users where score < 30; > select * from users where score > 20 and score < 30; > select * from users where team = '勇士'; > select * from users where team != '勇士'; > select * from users where player like '阿%'; # 以阿开头 > select * from users where player like '阿_'; # 两个字符 ```