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 DECLARE @dt1 AS datetime, @dt2 AS datetime;
SELECT @dt1 = '2008-8-4 9:36:41', @dt2 = '2008-8-2 9:33:39';
DECLARE @Days AS int, @Hours AS int, @Minutes AS int, @Seconds AS int;
SET @Seconds = DATEDIFF( second, @dt2, @dt1);
SET @Days = @Seconds / (24 * 60 * 60)
SET @Seconds = @Seconds - @Days * 24 * 60 * 60
SET @Hours = @Seconds / (60 * 60);
SET @Seconds = @Seconds - @Hours * 60 * 60
SET @Minutes = @Seconds / 60;
SET @Seconds = @Seconds - @Minutes * 60;
SELECT CONVERT(varchar(10), @Days ) + 'Ìì'
          + CONVERT(varchar(10), @Hours ) + 'Сʱ'
          + CONVERT(varchar(10), @Minutes ) + '·Ö'
          + CONVERT(varchar(10), @Seconds ) + 'Ãë';


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echo  Windows ·þÎñÆô¶¯»ò¹Ø±Õ By hope 2008Äê2ÔÂ7ÈÕ     
echo.
echo [1]Æô¶¯Sql Server2005   [2]¹Ø±ÕSql Server2005
echo [3]Æô¶¯Oracle9i         [4]¹Ø±ÕOracle9i
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How is MSSQL using memory?


How is MSSQL using memory?
http://www.sqlhacks.com/Administration/Memory-Usage
Memory is one the most important factor affecting MSSQL performance.
As an administrator, you should be monitoring the memory
regularly. When Microsoft SQL Server runs out of memory, it will use
virtual memory: ie: ......

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