Re: Dynamic Query for System functions - now()

> 
> Dear Friends,
> 
> I am using PostgreSQL 7.3.4 Server on RH Linux 7.2. I am trying to generate=
>  a dynamic query to fetch the next month interval.
> 
> select now()+ interval'1 month';  -- This is working fine.
> 
> I wanna dynamically assign the interval number. i,e --> select now()+ inter=
> val'n month';
> 
> For this I wanted to write a dynamic query.
> EXECUTE 'select now()+ interval\'' || 3|| 'month\'';
> Error
>     ERROR:  parser: parse error at or near "'select now()+ interval\''" at =
> character 9
> 
> Help help me with this. I wanted to use this query inside a PLpgSQL functio=
> n.
> 
> Regards
> Kumar
> 
You'd probably want to use the to_char() function like this 
EXECUTE 'select now()+ interval\'' ||to_char(3,'9')|| 'month\'';

The || operator is the string concatination operator. 

Regards, Christoph