Question

我正在测试Microsoft SQL Server，我想检查执行查询所需的时间。

Answer 1

在查询窗口中放置SQL，如下所示：

SET STATISTICS TIME ON;  

--Your Query Goes Here 
SELECT * FROM Table

SET STATISTICS TIME OFF;

Answer 2

Declare @startDate datetime
Declare @endDate datetime
begin

set @startDate=GETDATE()
select * from Table1
set @endDate=GETDATE()
 select DATEDIFF(ms,@startDate,@endDate) as 'Execution Time '


     /*
 ms is for millisecond you can also use following argument
 minute mi, n
second  ss, s
millisecond ms
microsecond mcs
nanosecond  ns
 */
 end

Answer 3

DECLARE @EndT datetime
DECLARE @StartT datetime 
SELECT @StartT=GETDATE() 

-- Write Your Query


SELECT @EndT=GETDATE()

--This will return execution time of your query
SELECT DATEDIFF(ms,@StartT,EndT) AS [Execution Time in millisecs]

有关DATEDIFF的更多信息，请参阅https://docs.microsoft.com/en-us/sql/t-sql/functions/datediff-transact-sql

使用Microsoft SQL Server查询时如何获得计时

3 个答案: