其他参考：
https://www.cnblogs.com/xcsn/p/7773212.html
SQL 查看SQL语句的执行时间 直接有效的方法
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SQL 查看SQL语句的执行时间 直接有效的方法
STATISTICS PROFILE ON;
SET STATISTICS IO ON;
SET STATISTICS TIME ON;
GO
/*--你的SQL脚本开始*/
SELECT [GroupBy1].[A1] AS [C1]
FROM ( SELECT COUNT(1) AS [A1]
FROM [dbo].[Questions] AS [Extent1]
WHERE ( [Extent1].[CheckUser] IS NOT NULL )
AND ( NOT ( ( N‘‘ = [Extent1].[CheckUser] )
AND ( [Extent1].[CheckUser] IS NOT NULL )
)
)
AND ( [Extent1].[Source] IN ( N‘xxx1‘, N‘xxx2‘, N‘xxx3‘ ) )
AND ( [Extent1].[Source] IS NOT NULL )
) AS [GroupBy1];
/*你的SQL脚本结束*/
GO
SET STATISTICS PROFILE OFF;
SET STATISTICS IO OFF;
SET STATISTICS TIME OFF;