Re: cursor with dinamic string

Hello

2011/3/25 Luca Santaniello <luca(dot)santaniello(dot)81(at)gmail(dot)com>:
> Hi all,
>
> I need use dinamic string for my cursor... My code is:
>
> query varchar := 'field1, field2 from ''' || tableName ||''' ........; //has
> dinamic params
>

use a FOR EXECUTE statement

FOR r IN EXECUTE 'SELECT .. FROM ' || quote_ident(tableName) || ' ....'
LOOP
...

you can use OPEN FOR EXECUTE too, but FOR statement is preferable

Regards

Pavel Stehule

http://www.postgresql.org/docs/9.0/interactive/plpgsql-cursors.html#PLPGSQL-CURSOR-OPENING

> then I create cursor...
>
> myCursor CURSOR FOR SELECT query;
>
> I compile my function but when i run it I obtain error...
>
> ERROR:  invalid input syntax for integer: ......
> CONTEXT:  PL/pgSQL function "my_function" line 72 at FETCH
>
> If I use static string, I don't have problems!!!
>
> Can I solve it?
>
> Thanks in advance
>
> --
> Luca Santaniello
> email: luca(dot)santaniello(dot)81(at)gmail(dot)com
> skype: luca.santaniello
> msn: luketto81(at)hotmail(dot)com
>
>
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