Looking up data and validating a text field

Hi All,
Ran into an issue with a Application Express system i support, there is a table inside a database with department codes. HG and JW. what i need to do is look up the department code and validate a text field, for example, if the user enters "HG" or "JW" then the form can be submitted. i got told it was PLSQL in the "Page Processing" Page
Sorry for the bad descrpition, im a complete beginner to Application Express
Thanks,
Sam

940648 wrote:
Hi All, Welcome to the forum: please read the FAQ and forum sticky threads (if you haven't done so already), and update your profile with a real handle instead of "940648".
When you have a problem you'll get a faster, more effective response by including as much relevant information as possible upfront. This should include:
<li>Full APEX version
<li>Full DB/version/edition/host OS
<li>Web server architecture (EPG, OHS or APEX listener/host OS)
<li>Browser(s) and version(s) used
<li>Theme
<li>Template(s)
<li>Region/item type(s) (making particular distinction as to whether a "report" is a standard report, an interactive report, or in fact an "updateable report" (i.e. a tabular form)
With APEX we're also fortunate to have a great resource in apex.oracle.com where we can reproduce and share problems. Reproducing things there is the best way to troubleshoot most issues, especially those relating to layout and visual formatting. If you expect a detailed answer then it's appropriate for you to take on a significant part of the effort by getting as far as possible with an example of the problem on apex.oracle.com before asking for assistance with specific issues, which we can then see at first hand.
Ran into an issue with a Application Express system i support, there is a table inside a database with department codes. HG and JW. what i need to do is look up the department code and validate a text field, for example, if the user enters "HG" or "JW" then the form can be submitted. i got told it was PLSQL in the "Page Processing" Page
Sorry for the bad descrpition, im a complete beginner to Application ExpressTake the <i>Oracle® Database 2 Day + Application Express Developer's Guide</i> tutorial in order to understand basic APEX techniques and terminology.
What you're looking for is Validation.
This is covered in the Oracle By Example tutorial: Building an Application using Oracle Application Express: Part 1

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fields terminated by ','
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SQL*Loader: Release 10.2.0.1.0 - Production on Mon May 31 09:45:10 2010
Copyright (c) 1982, 2005, Oracle. All rights reserved.
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C:\>
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