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High optimizer cost ..Please help me out to tune the query. (merged 4) [message #383305]

Wed, 28 January 2009 03:36

dhanamukesh
Messages: 51
Registered: January 2009

Member

Please help me out to tune the below query.Here i have attached both the sql and explain plan as an attachment.

Regards,
Dhanalakshmi.P

Attachment: f52br3n2uppjm.sql
(Size: 10.63KB, Downloaded 1294 times)

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Re: High optimizer cost ..Please help me out to tune the query. (merged 4) [message #383309 is a reply to message #383305]

Wed, 28 January 2009 03:50

Michel Cadot
Messages: 68716
Registered: March 2007
Location: Saint-Maur, France, https...

Senior Member
Account Moderator

Do not repost the same question every 4 minutes.
If you have any problem, check the forum BEFORE reposting.

Regards
Michel

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Re: High optimizer cost ..Please help me out to tune the query. (merged 4) [message #383310 is a reply to message #383305]

Wed, 28 January 2009 03:56

dhanamukesh
Messages: 51
Registered: January 2009

Member

Thanks for your information.
Please find the attached explain plan for the sql.

regards,
dhanalakshmi.P

Attachment: ep_f52br3n2uppjm.txt
(Size: 80.16KB, Downloaded 1215 times)

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Re: High optimizer cost ..Please help me out to tune the query. (merged 4) [message #383315 is a reply to message #383310]

Wed, 28 January 2009 04:21

Michel Cadot
Messages: 68716
Registered: March 2007
Location: Saint-Maur, France, https...

Senior Member
Account Moderator

You already posted it 4 times the 5th one is useless.

Regards
Michel

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Re: High optimizer cost ..Please help me out to tune the query. (merged 4) [message #384058 is a reply to message #383310]

Mon, 02 February 2009 00:57

dhanamukesh
Messages: 51
Registered: January 2009

Member

waiting for your reply

regards,
Dhanalakshmi.P

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Re: High optimizer cost ..Please help me out to tune the query. (merged 4) [message #384133 is a reply to message #383305]

Mon, 02 February 2009 04:54

michael_bialik
Messages: 621
Registered: July 2006

Senior Member

If you think that it's OK to post unformatted EXPLAIN of 172 rows, keep waiting.

[Updated on: Mon, 02 February 2009 04:55]

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Re: High optimizer cost ..Please help me out to tune the query. (merged 4) [message #384161 is a reply to message #383305]

Mon, 02 February 2009 07:17

cookiemonster
Messages: 13958
Registered: September 2008
Location: Rainy Manchester

Senior Member

So you've got a query that is union of three queries against a view.
You haven't given us a definition of that view.
You haven't given us definitions of the underlying tables.
You haven't even given us a readable explain plan.

If you want anything approaching usefull help you're going to have to provide us with all of the above.

That said, you're going to struggle to make a query that unions a view 3 times then groups the result and sorts it run fast.

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