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  • oracleI基础入门(8)tableDelete Crazy

    DELETE FROM
    在某些情况下,我们会需要直接由数据库中去除一些资料。这可以藉由 DELETE FROM 指令来达成。它的语法是:
    DELETE FROM "表格名" WHERE {条件}
    以下我们用个实例说明。假设我们有以下这个表格:
    Store_Information 表格
    store_name              Sales                  Date
    Los Angeles               $1500                Jan-05-1999
    San Diego                 $250                  Jan-07-1999
    Los Angeles               $300                 Jan-08-1999
    Boston                       $700                 Jan-08-1999
    而我们需要将有关 Los Angeles 的资料全部去除。在这里我们可以用以下的 SQL 来达到这个目的:
    DELETE FROM Store_Information WHERE store_name = "Los Angeles"
    现在表格的内容变成:
    Store_Information  表格
    store_name        Sales           Date
    San Diego          $250            Jan-07-1999
    Boston               $700            Jan-08-1999

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  • 原文地址:https://www.cnblogs.com/flyscan/p/2545307.html
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