sqlserver存儲過程中循環(huán)遍歷結(jié)果集？sql1=select * from (select *， row_number() over(order by username ) as row

sqlserver存儲過程中循環(huán)遍歷結(jié)果集？

sql1=select * from (select *， row_number() over(order by username ) as rowNumber from users where regfrom="&admin&") as t where t.rowNumber > 0 and t.rowNumber <= 0 30 order by username怎么會有27 條記錄呢，除非你的表 一共就27條記錄吧。用游標(biāo)或臨時表--游標(biāo)declare youbiao1 for 查詢1open youbiao1fetch next from youbiao1 into 變量while @@FETCH_STATUS = 0begin 里面一次套用end--臨時表declare @ID intset @ID = 1while Exists(select * from 表)begin --處理 -- set @ID = @ID 1end

mysql使用存儲過程，循環(huán)查找數(shù)據(jù)？

delimiter $$mysql>mysql> CREATE PROCEDURE myProc() //創(chuàng)建while循環(huán)的存儲過程 if分支語句示例-> BEGIN->-> DECLARE i int-> SET i=1-> loop1: WHILE i IF MOD(i，2)0 THEN /*Even number - try again*/-> SELECT CONCAT(i，" is an odd number")-> END IF-> SET i=i 1-> END WHILE loop1-> END$$Query OK， 0 rows affected (0.00 sec)這種也可以