Call the function in postgresql to jsp

again i'm a newbie of jsp.. i just wanna know how to call the function in postgresql to jsp.. how to code it?... thanks in advance

<%@ page contentType="text/html;charset=windows-1252" import="java.sql.*"%>
<%
try
Class.forName("org.postgresql.Driver").newInstance();
Connection con = DriverManager.getConnection("jdbc:postgresql://localhost:5432/TESTDB","postgres","");
Statement stmt = con.createStatement();
ResultSet rs = stmt.executeQuery("select catalog('catalog1') from catalog");
%>
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
    <title>untitled</title>
</head>
<body>
    <%
    while(rs.next()){
      out.println(rs.getString(1)+"<br>");
    %>
</body>
</html>
<%
}catch (Exception ex)
ex.printStackTrace();
%>
CREATE or Replace FUNCTION catalog(varchar) RETURNS catalog
    AS $$ SELECT title FROM catalog WHERE catalogid = $1 $$
    LANGUAGE SQL;
CREATE TABLE catalog
catalogid varchar(25) NOT NULL,
journal varchar(25),
publisher varchar(25),
edition varchar(25),
title varchar(45),
author varchar(25),
CONSTRAINT catalog_pkey PRIMARY KEY (catalogid)
WITH OIDS;

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How to call a function from Java to JSP

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import javax.servlet.http.*;
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Thanks.

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Cheers,
evnafets

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Proud to use LW/CVI from 3.1 on.
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MM: do I have to use bdc, when I already called the function?

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Hi !
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Some points would be fine if that hepled a bit

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Hello Gurus,
I have a scenario, where i had made one function(UDF Function) to calculate something and in every procedure i call that function and calculate my requirement.
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Hmm, do I edit 500 procedures to replace a function call with a SQL statement, or edit 1 function to use a sql statement instead of the current algorithm?
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user1175432 wrote:
Hi,
I am trying to run the below statement,
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Message was edited by: rah02

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