declare @end_time char(11)
declare @number int
set @sql='select @number =min(id) from'+' Submit'+@end_time
exec sp_executesql @sql,N'@number int output,'@number output'
select @number
declare @number int
set @sql='select @number =min(id) from'+' Submit'+@end_time
exec sp_executesql @sql,N'@number int output,'@number output'
select @number
declare @sql nvarchar(4000)
declare @number int
set @sql='select @number =min(id) from'+' Submit'+@end_time
exec sp_executesql @sql,N'@number int output','@number output'
select @number
declare @number int
set @sql='select @number=min(id) from'+' Submit'+@end_time
exec sp_executesql @sql,N'@number int number output','@number,output'
select @number
go
是怎么一回事?