declare @num int,
@sqls nvarchar(4000)
set @sqls='select @a = max(num) from ly'
exec sp_executesql @sqls,N'@a int output',@num output
select @num
@sqls nvarchar(4000)
set @sqls='select @a = max(num) from ly'
exec sp_executesql @sqls,N'@a int output',@num output
select @num
解决方案 »
免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货