MySQL用变量的方法添加伪序号列

用两个语句来实现sql set @rownum=0;spa SELECT @rownum:=@rownum+1 AS rownum , id FROM table;table 用一个sql语句来实现sql语句 SELECT @rownum:=@rownum+1 AS rownum, table_name.* FROM (SELECT @rownum:=0) r, table_name ;查询 把r

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