ORACLE 10g DBLINK to ORACLE 9i very slow
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Thread: ORACLE 10g DBLINK to ORACLE 9i very slow

  1. #1
    Join Date
    Oct 2006
    Posts
    3

    Exclamation ORACLE 10g DBLINK to ORACLE 9i very slow

    Hi all,
    I have an ORACLE 10g Database (A) and I have a materilized view in 10g based on another database in 9i (B) the problem is that querying this view is taking around 7 hrs.
    On the other hand, if I create the same view in another Database (C) Oracle 9i. The time is taking around half an hour.
    Is there anything I can do to solve this problem in Oracle 10g??

  2. #2
    Join Date
    Sep 2002
    Location
    England
    Posts
    7,333
    trace the query, see where the time is being taken

  3. #3
    Join Date
    Oct 2006
    Posts
    3
    Do you have any scripts for tracing the query?

  4. #4
    Join Date
    Jul 2002
    Location
    Northampton, England
    Posts
    612
    Have a read:

    http://www.google.co.uk/search?hl=en...G=Search&meta=

    Where are databases A, B and C? How long does a ping take between them all? Tracing at the appropriate level to include wait events will tell you all you need to know.
    Assistance is Futile...

  5. #5
    Join Date
    Oct 2006
    Posts
    3
    Quote Originally Posted by waitecj
    Have a read:

    http://www.google.co.uk/search?hl=en...G=Search&meta=

    Where are databases A, B and C? How long does a ping take between them all? Tracing at the appropriate level to include wait events will tell you all you need to know.
    They are on the same place. Ping is the same from A to B ans from A to C.

  6. #6
    Join Date
    Sep 2002
    Location
    England
    Posts
    7,333
    how has the tracing gone

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