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  • select 基本常用语法

    ***********************************************************  
       
       
       
       
       
      SELECT语法:(基本)  
       
       
       
      *************************************************************  
      **********************************************************  
      SELECT   [DISTINCT]  
      (column   [{,   column   }   ]   )|   *  
      FROM   table   [   {   ,   table}   ]  
      [ORDER   BY   column   [ASC]   |   [DESC  
      [{   ,   column   [ASC]   |   [DESC   }   ]   ]  
      WHERE   predicate   [   {   logical-connector   predicate   }   ];  
      ------------------------------------------------------  
       
      INSERT语法:  
       
      INSERT   INTO   table  
      [(column   {   ,column})]  
      VALUES  
      (columnvalue   [{,columnvalue}]);  
      ------------------------------------------------------  
       
      UPDATE语法:  
       
      UPDATE   table  
      SET   column   =   value   [{,   column   =   value}]  
      [   WHERE   predicate   [   {   logical-connector   predicate}]];  
      ------------------------------------------------------  
       
      DELETE语法:  
       
      DELETE   FROM   table  
      [WHERE   predicate   [   {   logical-connector   predicate}   ]   ];  
      ------------------------------------------------------  
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  • 原文地址:https://www.cnblogs.com/wbcms/p/866890.html
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