Re: pros and cons

  • From: jo_holvoet@xxxxxxxx
  • To: oracle-l@xxxxxxxxxxxxx
  • Date: Thu, 01 Apr 2004 09:49:50 +0200

In the good old days of 8.0, this was a problem for advanced replication : 
the table you wanted to replicate had to have a PK and it had to be 
enforced by a unique index (the error message we got when this was not the 
case was "table or view does not exist" : very helpful in tracking down 
the problem :).
If you are planning to use replication, you might want to check the 
current requirements for the PK index.



Sai Selvaganesan <ssaisundar@xxxxxxxxxxxxx>
Sent by: oracle-l-bounce@xxxxxxxxxxxxx
03/31/2004 00:50
Please respond to oracle-l

        To:     oracle-l@xxxxxxxxxxxxx
        Subject:        pros and cons

i read the follwing line in oracle 9i documentation,
Unique and primary keys can use non-unique as well as unique indexes. They 
can even use just the first few columns of non-unique indexes. 
i am planning to use a primary key constraint enforced by the first few 
columns of a non-unique index.any feedback or advice or gotchas in having 
such a setup.

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