Re: Why I can't have primary key on field that has index?

badstreetboy_at_my-dejanews.com wrote:

>I try to create a table by:
>
>CREATE TABLE t1(
> f1 INTEGER NOT NULL PRIMARY KEY,
> f2 INTEGER NOT NULL);
>CREATE INDEX f1_index ON t1(
> f1);
>
>Then it gives me an err:
>
>ERROR at line 2:
>ORA-01408: such column list already indexed
>
>Why this happen? I would appreciate if anyone can help me. Thanks!
>
>
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Keep in mind that oracle enforces primary keys via a unique index....which explains the error message.

Cheers, Robert Prendin

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