Using owa_util.showpage

Question

Hi,
I just learning how the package owa_util works in my db 10g and I don't Know why the code that I describe below give me a few errors:
CREATE TABLE feds_data (
tid       NUMBER(9),
serial_no VARCHAR2(30),
mfg_abbr  VARCHAR2(8),
type_code VARCHAR2(5),
mod_dt    DATE,
mod_by    VARCHAR2(30));
INSERT INTO feds_data
(tid, serial_no, mfg_abbr, type_code, mod_dt, mod_by)
VALUES
(1, '42', 'BCAG', 'ABC', SYSDATE, USER);
INSERT INTO feds_data
(tid, serial_no, mfg_abbr, type_code, mod_dt, mod_by)
VALUES
(1, '666', 'MSC', 'XXX', SYSDATE, USER);
commit;
CREATE OR REPLACE PACKAGE feds_pkg IS
PROCEDURE get_data;
END feds_pkg;
CREATE OR REPLACE PACKAGE BODY feds_pkg IS
PROCEDURE get_data IS
CURSOR gmi_cur IS
SELECT tid, serial_no, mfg_abbr,
type_code, mod_dt, mod_by
FROM feds_data
ORDER BY tid;
ProcName VARCHAR2(61) := 'feds_pkg.get_data';
HeadText VARCHAR2(2000) := 'Demo Page Header';
FootText VARCHAR2(500) := 'Demo Page Footer';
BEGIN
  htp.p(HeadText);
  htp.p('<form method="POST"><center>');
  htp.p('<table border="1" width="30%">');
  FOR i IN gmi_cur LOOP
    htp.p('<tr>');
    htp.p('<td align="center">');
    htp.p('<font face="Arial" color=#000000">');
    htp.p('<input type=text size=3 maxlength=3 name="tid"');
    htp.p('value = ' || i.tid || '></font>');
    htp.p('</td>');
    htp.p('<td align="center">');
    htp.p('<font face="Arial" color=#000000">');
    htp.p('<input type=text size=8 maxlength=8 name="serial_no"');
    htp.p('value = ' || i.serial_no || '></font>');
    htp.p('</td>');
    htp.p('<td align="center">');
    htp.p('<font face="Arial" color=#000000">');
    htp.p('<input type=text size=6 maxlength=6 name="serial_no"');
    htp.p('value = ' || i.mfg_abbr || '></font>');
    htp.p('</td>');
    htp.p('<td align="center">');
    htp.p('<font face="Arial" color=#000000">');
    htp.p('<input type=text size=1 maxlength=1 name="serial_no"');
    htp.p('value = ' || i.type_code || '></font>');
    htp.p('</td>');
    htp.p('<td align="center">');
    htp.p('<font face="Arial" color=#000000">');
    htp.p('<input type=text size=7 maxlength=7 name="serial_no"');
    htp.p('value = ' || TO_CHAR(i.mod_dt, 'MM-DD-YYYY') ||'></font>');
    htp.p('</td>');
    htp.p('<td align="center">');
    htp.p('<font face="Arial" color=#000000">');
    htp.p('<input type=text size=6 maxlength=6 name="serial_no"');
    htp.p('value = ' || i.mod_by || '></font>');
    htp.p('</td>');
    htp.p('</tr>');
  END LOOP;
  htp.p('<p align=center>');
  htp.p('<input type=submit name="Submit" value="Save"></p>');
  htp.p('</form></center>');
  htp.p('</table>');
  htp.p(FootText);
END get_data;
END feds_pkg;
set serveroutput on
spool c:\PLSQL\demopage.html
exec feds_pkg.get_data;
exec owa_util.showpage;
spool offthe output error is:
ORA-06502: PL/SQL: error numérico o de valor
ORA-06512: en "SYS.OWA_UTIL",
línea 356 ORA-06512: en "SYS.HTP",
línea 1368 ORA-06512: en "SYS.HTP",
línea 1443 ORA-06512: en "SYS.HTP",
línea 1735 ORA-06512: en "HR.FEDS_PKG",
línea 15 ORA-06512: en línea 1Thanks in advance....

Answer 1

The htp package is meant for procedures that you call from the browser, not from sqlplus. Try this procedure call from your browser.
There is a way to get a preview via sqlplus, but you need to fake a CGI environment. Search this forum, I know this topic has been addressed before.
Here is one link:
Re: HTML not working in PL/SQL block..Help me ASAP
Edited by: InoL on May 20, 2011 3:40 PM