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Handle large table in join

Author

Topic

prakashram
Starting Member

4 Posts

Posted - 2006-11-14 : 05:17:05

Hi Friends,

I have two large tables like auditTbl, CntTbl which has around 30 lacks records.

auditTbl - CntId, UsrId, DateAccess,

CntTbl - CntId, CntCate

i want to get number of access for each user with each content.
I have writen query but it's taking more time to execute bec of large data in both table.

How can i overcome this problem?
Please give the solution to handle this problem

khtan
In (Som, Ni, Yak)

17689 Posts

Posted - 2006-11-14 : 05:19:22

Please post your table DDL and your query. Also indicate what are the indexes you have on these 2 tables.

harsh_athalye
Master Smack Fu Yak Hacker

5581 Posts

Posted - 2006-11-14 : 05:24:52

Select UsrID, CntID, Count(DateAccess)
from auditTbl a Join CntTbl c
on a.CntId = c.CntId
Group by UsrID, CntID

???

Harsh Athalye
India.
"Nothing is Impossible"

SwePeso
Patron Saint of Lost Yaks

30421 Posts

Posted - 2006-11-14 : 05:51:21

Which indexes do you have on your 3 million record table?

Peter Larsson
Helsingborg, Sweden

madhivanan
Premature Yak Congratulator

22864 Posts

Posted - 2006-11-14 : 08:46:56

quote:
Originally posted by prakashram

Hi Friends,

I have two large tables like auditTbl, CntTbl which has around 30 lacks records.

auditTbl - CntId, UsrId, DateAccess,

CntTbl - CntId, CntCate

i want to get number of access for each user with each content.
I have writen query but it's taking more time to execute bec of large data in both table.

How can i overcome this problem?
Please give the solution to handle this problem

Post the query you used. Also post table structures

Madhivanan

Failing to plan is Planning to fail

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