Re: Trigger with dynamic SQL

2010/5/24 Josi Perez (3T Systems) <josiperez3t(at)gmail(dot)com>

> Sorry for the inconvenience, but no one have ideas to solve this problem?
> Am I in the wrong list to ask this?
> Need I create triggers for each table?
>
> Thanks in advance for any suggestions.
> Josi Perez
>
> 2010/5/19 Josi Perez (3T Systems) <josiperez3t(at)gmail(dot)com>
>
> To avoid to delete registers I created one trigger activated "before
>> delete" with lines like that:
>> UPDATE tableX set dtExc = 'now', userExc = current_user where idTableX =
>> OLD.idTableX;
>> return NULL;
>>
>> but, I need do the same for many tables and I don't catch how.
>> I created an sql variable to construct the update command using parameters
>> on trigger
>> qry := 'UPDATE '||arg_table||' set userexc = '
>> ||chr(39)||current_user||chr(39)||', dtalt = '||'''now'''||' where ' ||
>> arg_id ||' = OLD.'||TG_ARGV[1];
>>
>> but when "EXECUTE qry" I lost the OLD.variable.
>>
>> I can't send the bigint id to delete in trigger parameters.
>>
>> Any suggestions?
>>
>> Thanks in advance,
>> Josi Perez
>>
>>
>
What is the problem? What do you mean by "lost the OLD.variable"? Better
show us the whole trigger code as I really don't get it.

regards
Szymon Guz