From: | Jim Nasby <Jim(dot)Nasby(at)BlueTreble(dot)com> |
---|---|
To: | Adrian Klaver <adrian(dot)klaver(at)aklaver(dot)com>, Ramesh T <rameshparnanditech(at)gmail(dot)com>, "pgsql-general(at)postgresql(dot)org" <pgsql-general(at)postgresql(dot)org> |
Subject: | Re: oracle to postgres |
Date: | 2015-02-03 03:13:16 |
Message-ID: | 54D03CCC.8040204@BlueTreble.com |
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Lists: | pgsql-general |
On 1/29/15 3:02 PM, Adrian Klaver wrote:
> On 01/29/2015 03:16 AM, Ramesh T wrote:
>> hello,
>> can any one help me to convert oracle to postgres script..?
>> following code ..
>> BEGIN
>> EXECUTE IMMEDIATE 'DROP TABLE CONTAINER';
>> EXCEPTION
>> WHEN OTHERS THEN
>> IF SQLCODE != -942 THEN
>> RAISE;
>> END IF;
>> END;
>> advance thanks,
>
> For hints and tips see:
>
> http://www.postgresql.org/docs/9.3/interactive/plpgsql-porting.html
>
> In this case I believe the following is what you want:
>
> BEGIN
> DROP TABLE CONTAINER;
> EXCEPTION
> WHEN OTHERS THEN
> IF RETURNED_SQLSTATE != -942 THEN
> RAISE;
> END IF;
> END;
It would be even better to instead do...
EXCEPTION
WHEN blah THEN
NULL; -- Ignore this error
See other comments about the correct error code to use. Also, note that
this is a risky pattern; it will ignore that error no matter what object
generated it. I much prefer to also sanity-check the actual error
message to make sure the error is on the object we expect it to be.
--
Jim Nasby, Data Architect, Blue Treble Consulting
Data in Trouble? Get it in Treble! http://BlueTreble.com
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