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                MySQL私人訂制 1.MySQL用變量的方法添加偽序號列,MySql自增序列,序號列 用兩個語句來實現 set @rownum=0; SELECT @rownum:=@rownum+1 AS rownum , id FROM table; 用一個sql語句來實現 SELECT @rownum:=@rownum+1 AS rownum, table_name.* FROM (SELECT @rownum:=0) r, table_name ; 把rownum的設置初值放到了from 和需要查詢的表的前面
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