Hi,
First of all the below mentioned function can't be called with "SELECT *
FROM getOutVarchar()". Since the Function signature does not match.
CREATE OR REPLACE
Function getOutVarchar(outvarchar OUT varchar2) RETURN NUMBER
IS
BEGIN
outvarchar:='This is Out String';
RETURN 1;
END getOutVarchar;
However calling the above function with "SELECT * FROM getOutVarchar('abc');"
does returns a Single column in a single row with a field named 'outvarchar'
but the value of the field is "1" which is obvious due to "RETURN 1" and not
"This is Out String".
Thanks
Ehsan
--- On Sat, 9/12/09, Merlin Moncure <mmonc...@gmail.com> wrote:
From: Merlin Moncure <mmonc...@gmail.com>
Subject: Re: [GENERAL] Getting Out Parameter in the application using libpq
To: "Ehsan Haq" <ehsan_ha...@yahoo.com>
Cc: pgsql-general@postgresql.org
Date: Saturday, September 12, 2009, 1:21 PM
On Fri, Sep 11, 2009 at 10:30 PM, Ehsan Haq <ehsan_ha...@yahoo.com> wrote:
>
> Hi,
> I still don't get. How can I get the varchar OUT parameter in the
> application? For Example
>
> CREATE OR REPLACE
> Function getOutVarchar(outvarchar OUT varchar2) RETURN NUMBER
if, from libpq:
res = PQexec(conn, "SELECT * FROM getOutVarchar()");
the result should have a one column, one row result with a field
called outvarchar.
merlin
