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help / color / mirror / Atom feedFrom: Jean-Marc Voillequin (MA) <[email protected]>
To: David Rowley <[email protected]>
Cc: Pavel Stehule <[email protected]>
Cc: [email protected] <[email protected]>
Subject: RE: no_data_found oracle vs pg
Date: Mon, 18 Sep 2023 14:05:24 +0000
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Thanks David,
It’s a very interesting idea.
From: David Rowley <[email protected]>
Sent: Monday, September 18, 2023 3:14 PM
To: Jean-Marc Voillequin (MA) <[email protected]>
Cc: Pavel Stehule <[email protected]>; [email protected]
Subject: Re: no_data_found oracle vs pg
On Mon, 18 Sept 2023 at 18: 49, Jean-Marc Voillequin (MA) <Jean-Marc. Voillequin@ moodys. com> wrote: > I know I can test the ROWCOUNT or the FOUND indicator, but it’s not what I want. > > I want a NO_DATA_FOUND exception to be raised
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On Mon, 18 Sept 2023 at 18:49, Jean-Marc Voillequin (MA)
<[email protected]<mailto:[email protected]>> wrote:
> I know I can test the ROWCOUNT or the FOUND indicator, but it’s not what I want.
>
> I want a NO_DATA_FOUND exception to be raised when the function is called from a PL/pgSQL block, and I want the function to return a NULL value when called from SQL.
It would mean having to include logic in each function, but perhaps
GET DIAGNOSTIC PG_CONTEXT could be of some use.
You could adapt the following to call the STRICT or non-STRICT version
accordingly.
create or replace function myfunc() returns int as $$
declare ctx text;
begin
GET DIAGNOSTICS ctx = PG_CONTEXT;
if split_part(ctx, E'\n', 2) = '' then
raise notice 'top level';
else
raise notice 'nested';
end if;
return 1;
end;
$$ language plpgsql;
create or replace function callerfunc() returns int as $$
begin
return myfunc();
end;
$$ language plpgsql;
select myfunc();
select callerfunc();
David
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Subject: RE: no_data_found oracle vs pg
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