performance test issue

[koekie17]

Hi,

Simple query:

select * from MyTable where Id=123456;

The first time I execute this query it takes 14 seconds. However, the second time I execute it takes 0 seconds.

I wanted to clear the cache so the second execution takes 14 second just like the first execution. So i tried:

CHECKPOINT;
DBCC FREEPROCCACHE;
DBCC DROPCLEANBUFFERS;

But no success. I'm using ms sql server management studio (2005). I also tried the option Reset client statistics. I even restarted the sql server. No matter what I try, it looks like the result keeps somewhere saved.

Does somebody have a solution for this?

Cheers

[debasisdas]

what is the problem if the query is executing faster ?

[amitpatel66]

Hi,

Simple query:

select * from MyTable where Id=123456;

The first time I execute this query it takes 14 seconds. However, the second time I execute it takes 0 seconds.

I wanted to clear the cache so the second execution takes 14 second just like the first execution. So i tried:

CHECKPOINT;
DBCC FREEPROCCACHE;
DBCC DROPCLEANBUFFERS;

But no success. I'm using ms sql server management studio (2005). I also tried the option Reset client statistics. I even restarted the sql server. No matter what I try, it looks like the result keeps somewhere saved.

Does somebody have a solution for this?

Cheers

Well this is first time I have seen somebody asking to degrade the performance of the query.