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                ### 5.11、like l Like可以實現模糊查詢,like支持%和下劃線匹配 l 查詢姓名以M開頭所有的員工 ``` select * from emp where ename like 'M%'; ``` ![](https://img.kancloud.cn/77/aa/77aa20bd5c65c7ace5db5e9fa52bc6da_659x139.png) l 查詢姓名以N結尾的所有的員工 ``` select * from emp where ename like '%N'; ``` ![](https://img.kancloud.cn/fd/97/fd97b70d8f23c3fd09f27ec703a11f46_631x136.png) l 查詢姓名中包含O的所有的員工 ``` select * from emp where ename like '%O%'; ``` ![](https://img.kancloud.cn/24/b6/24b6c38f4a43825023d29b2bfb1376fe_617x152.png) l 查詢姓名中第二個字符為A的所有員工 ``` select * from emp where ename like '_A%'; ``` ![](https://img.kancloud.cn/f2/56/f2566144b94c22126f3d2f8458de0d07_648x151.png) Like中%和下劃線的差別? %匹配任意字符出現的任意個數 下劃線只匹配一個字符 Like 中的表達式必須放到單引號中|雙引號中,以下寫法是錯誤的: ``` select * from emp where ename like _A% ```
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