Re: duplicate key violates unique constraint

Could it be that the insert statement itself is the problem? What does the table look like?


Edward W. Rouse

-----Original Message-----
From: pgsql-sql-owner(at)postgresql(dot)org [mailto:pgsql-sql-owner(at)postgresql(dot)org] On Behalf Of Bart Degryse
Sent: Tuesday, February 26, 2008 11:35 AM
To: pgsql-sql(at)postgresql(dot)org; Shavonne Marietta Wijesinghe
Subject: Re: [SQL] duplicate key violates unique constraint

Shavonne,
You will probably always find someone on the list who will answer your questions, but you really should read the manual too!
In this case you could have found the answer by reading
http://www.postgresql.org/docs/8.2/static/plpgsql-control-structures.html#PLPGSQL-ERROR-TRAPPING

>>> "Shavonne Marietta Wijesinghe" <shavonne(dot)marietta(at)studioform(dot)it> 2008-02-26 17:05 >>>
Thank you. I tried as you said. But i get a ERROR: syntax error at or near
"INSERT" at character 9

BEGIN
INSERT INTO my_shevi values ('a', 4, 2, 2);
EXCEPTION
WHEN unique_violation THEN
INSERT INTO my_shevi values ('a', 5, 2, 2);
END;

I don't see anything wrong with the code..

Shavonne

----- Original Message -----
From: "Teemu Torma" <teemu(at)torma(dot)org>
To: <pgsql-sql(at)postgresql(dot)org>
Sent: Tuesday, February 26, 2008 4:17 PM
Subject: Re: [SQL] duplicate key violates unique constraint

> On Tuesday 26 February 2008, Shavonne Marietta Wijesinghe wrote:
>& gt; During an "INSERT INTO" I get an "Error - duplicate key violates
>> unique constraint...."
>>
>> Is there any way, that i can test the error. Something like this??
>>
>> IF error = "duplicate key violates unique constraint" then
>> Â Â do something
>> else
>> Â Â insert into
>> end if
>
> insert into ...;
> exception when unique_violation then
> do something;
>
> Teemu
>
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