Re: A table can not be access

Hi 李建军

How big is the table that the constraint is on It may take a while on a large table as it may need to drop the index that is associated with the constraint. What was the purpose of the constraint? was it a primary key, a check, a foreign key reference.

You may just be wating a while.

Look in longops for whether your process is taking up time. Have a look at V$SQLAREA for your drop statement.

HTH Cheers

Peter  

On Mon, 2008-03-24 at 18:15 +0800, 李建军 wrote:
>
>
> Hi
>
>
>
> I have a rac oracle 9204 ,IBM p570 aix5304
>
> And I tried to delete a foreign key by
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> ALTER TABLE BN_MAINS DROP CONSTRAINT BN_MAINS_FOR
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> I don’t know what was happened
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> It’s possible the delete operation have not completed
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> The table bn_mains cannot be access
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> For example , when I run
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> Desc bn_mains
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> In sqlplus, then sqlplus hang
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>
>
> How can I return it?
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> Thanks
>
>
>
>

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