Sql server统计查询语句消耗时间

Set statistic timeQuery
1.
set statistics time on
go
 xxxx
go
set statistics time off

DECLARE @begin dateTime
DECLARE @end dateTime
SET @begin=getdate();
BEGIN
 xxxx
end
set @end=getdate();
SELECT datediff(ms,@begin,@end) as 'Elapsed Time'