PK versus index
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Thread: PK versus index

  1. #1
    Join Date
    Sep 2002
    Posts
    411

    PK versus index

    does a primary key defines an Index?

  2. #2
    Join Date
    Jun 2000
    Location
    Madrid, Spain
    Posts
    7,447
    in 8i index is implicitly created

    in 9i you can choose wheather create implicitly or explicitly

  3. #3
    Join Date
    Aug 2002
    Location
    Colorado Springs
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    5,253
    Originally posted by pando
    in 8i index is implicitly created
    ... although if a non-unique index already exists on the PK columns, it will be used to enforce the PK -- a unique index will not be created.

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