Re: is there any difference DROP PRIMARY KEY in oracle and postgres?

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От Joshua D. Drake
Тема Re: is there any difference DROP PRIMARY KEY in oracle and postgres?
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Msg-id 563C267C.3050406@commandprompt.com
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Ответ на is there any difference DROP PRIMARY KEY in oracle and postgres?  (M Tarkeshwar Rao <m.tarkeshwar.rao@ericsson.com>)
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On 11/05/2015 07:52 PM, M Tarkeshwar Rao wrote:
> Hi,
>
> one thing in oracle is there any difference between “DROP PRIMARY KEY”
> used directly in oracle to drop primary key, or “DROP CONSTRAINT
> CDRAUDITPOINT_pk”, as first syntax is not available in postgres and we
> need to give primary key name as constraint to delete a key. SO right
> now to delete primary key I am using second approach, so is there any
> difference between two?

No. As a PRIMARY KEY is technically a constraint, we use ALTER TABLE
DROP CONSTRAINT.

JD


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