WHERE語句 === 使用where語句來設定select,update,delete語句數據抽出條件 ## 實戰 ``` > 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%'; # 以阿開頭 > select * from users where player like '阿_'; # 兩個字符 ```