mysql 查找結果中自動加序號列

查找mysql 數據庫 自動 添加 序號 字段列1,2,3,4.
就像這樣。。

select (@rowNO := @rowNo+1) AS rowno,zhuanfaContent,content,sendDate,sendTime,zhuanfaAuthor,zhuanfaLink from (SELECT zhuanfaContent,content,sendDate,sendTime,zhuanfaAuthor,zhuanfaLink FROM t_toefldata_zhuanfa where sendDate = '2012-04-21') a,(select @rowNO :=0) b

查找表
“
t_toefldata_zhuanfa”