/*语句执行时间查看*/
declare @begin_date datetime
declare @end_date datetime
select @begin_date = getdate()
SELECT COUNT(*) AS CNT FROM Student
select @end_date = getdate()
select datediff(ms,@begin_date,@end_date) as '用时/毫秒'
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/*语句执行时间查看*/
declare @begin_date datetime
declare @end_date datetime
select @begin_date = getdate()
SELECT COUNT(*) AS CNT FROM Student
select @end_date = getdate()
select datediff(ms,@begin_date,@end_date) as '用时/毫秒'
相关文章：