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Re: Help trying to write my first plpgsql function...

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Oki, I found a way...

begin;
select trykkstatus(1,'refcurs'); (I have added one parameter to know the cursor name)
fetch all from refcurs;
commit;

But this returns two rowsets, first one for the select and then one for the fetch,
but how do I get rid of the row that is returned by the select?

BTJ

Bjørn T Johansen wrote:
> Yes, of course....
> 
> But this function does not do what I need it to do... I want x rows returned, but
> instead I just get a stringname...
> Either how do I use this name or how do I return x rows?
> 
> 
> BTJ
> 
> Gnanavel S wrote:
> 
>>'IF' block is not ended.
>>
>>On 9/15/05, *Bjørn T Johansen* <btj@xxxxxxxxxx <mailto:btj@xxxxxxxxxx>>
>>wrote:
>>
>>    I am trying to write a function that returns x rows, where x >= 0
>>    and this is what I
>>    have come up with...:
>>
>>    CREATE OR REPLACE FUNCTION trykkStatus (pressID SMALLINT) RETURNS
>>    REFCURSOR AS '
>>    declare
>>        orderID ordrenew.id%TYPE;
>>        cur REFCURSOR;
>>    begin
>>    select id into orderID from ordrenew where now() between trykkstart
>>    and produsert and
>>    presseid = $1 limit 1;
>>    if not found then
>>       raise exception ''No rows'';
>>    open cur for ((select 1 as colid, id, trykkstart, produsert,
>>    presseid from ordrenew
>>    where produsert < (select trykkstart from ordrenew where id=orderID)
>>    order by produsert desc limit 1)
>>    union
>>    (select 2 as colid, id, trykkstart, produsert, presseid from
>>    ordrenew where now()
>>    between trykkstart and produsert and presseid = 1 limit 1)
>>    union
>>    (select 3 as colid, id, trykkstart, produsert, presseid from
>>    ordrenew where
>>    trykkstart > (select produsert from ordrenew where id=orderID) order
>>    by trykkstart
>>    limit 1) order by colid);
>>    return(cur);
>>    END;
>>    ' LANGUAGE 'plpgsql';
>>
>>
>>    But this just gives me the following error:
>>
>>    syntax error at or near ";" at character 851
>>
>>    And I can't find anything wrong near any ; ....?
>>    Also, does this function do what I expect it to do?
>>    And instead of rasing an error when no rows is found, can I return
>>    an "empty" cursor
>>    instead?
>>
>>
>>    Regards,
>>
>>    BTJ
>>
>>    --
>>    -----------------------------------------------------------------------------------------------
>>
>>    Bjørn T Johansen
>>
>>    btj@xxxxxxxxxx <mailto:btj@xxxxxxxxxx>
>>    -----------------------------------------------------------------------------------------------
>>    Someone wrote:
>>    "I understand that if you play a Windows CD backwards you hear
>>    strange Satanic messages"
>>    To which someone replied:
>>    "It's even worse than that; play it forwards and it installs Windows"
>>    -----------------------------------------------------------------------------------------------
>>
>>    ---------------------------(end of
>>    broadcast)---------------------------
>>    TIP 6: explain analyze is your friend
>>
>>
>>
>>
>>-- 
>>with regards,
>>S.Gnanavel
>>Satyam Computer Services Ltd.
> 
> 

---------------------------(end of broadcast)---------------------------
TIP 6: explain analyze is your friend

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