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                # SQL IN 操作符 ## IN 操作符 IN 操作符允許我們在 WHERE 子句中規定多個值。 ### SQL IN 語法 ``` SELECT column_name(s) FROM table_name WHERE column_name IN (value1,value2,...) ``` ## 原始的表 (在實例中使用:) Persons 表: | Id | LastName | FirstName | Address | City | | --- | --- | --- | --- | --- | | 1 | Adams | John | Oxford Street | London | | 2 | Bush | George | Fifth Avenue | New York | | 3 | Carter | Thomas | Changan Street | Beijing | ## IN 操作符實例 現在,我們希望從上表中選取姓氏為 Adams 和 Carter 的人: 我們可以使用下面的 SELECT 語句: ``` SELECT * FROM Persons WHERE LastName IN ('Adams','Carter') ``` ### 結果集: | Id | LastName | FirstName | Address | City | | --- | --- | --- | --- | --- | | 1 | Adams | John | Oxford Street | London | | 3 | Carter | Thomas | Changan Street | Beijing |
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