Thanassis Bakalidis's Programming and DBA Scratch Pad

All things relative to everyday programming and DBA practices, This blog will not give you the ET staff, just little remindings about how things work. Subjects are relative to databases, programming, Linux, Windows and ... you name it. I used to have a notepad onto which I put down anything I thought I might need again. Hopefully this is going to be as good as the paper with the added value of being able to paste from.

Thursday, 20 March 2008

Oracle ADF Two action listeners in one action

Some time ago, I run into a situation when I wanted to add two action listeners inside a single command element but I realized that this wa...

Friday, 7 March 2008

Firefox 2.0.0.0.x on CentOS 5.1

Thanks to people like Diezel who posted the original article on nixadmins.net, we now know that in order for Firefox 2.0 to run on a Cent...

Friday, 29 February 2008

Deploying Oracle ADF: What did I learn about caching

Our company's production application server is located at a site different than the one we do our development. Whenever we deployed a n...

Wednesday, 27 February 2008

Changing the JDeveloper IDE font size

If you are like me and wish that the JDeveloper IDE displayed using a bigger font, then thanks to Khaled from Oracle support all you need t...

Saturday, 23 February 2008

Oracle 11g How to determine the database character set

This is only a quick note for something I keep forgetting. So to determine the oracle database character set use the following simple SQL s...

Monday, 11 February 2008

Oracle 10g Killing open sesions

We have a client program that leaves lots of open sessions. These sessions take up server resources and we wanted to find a way to locate a...

Wednesday, 23 January 2008

Oracle IAS 10g 10.1.3.1 Installation on Enterprise Linux 5

Yesterday I completed my first installation of Oracle SOA Suite 10.1.3.1 on Oracle Enterprise Linux 5. In order to complete the installatio...

Friday, 11 January 2008

ABAP Get the value of a date type characteristic

When an object is classified with characteristics of type date then, using BAPI BAPI_OBJCL_GETCLASSES these characteristics are returned a...

Java: Dates/Times and Calendars

The problem that many new Java programmers -- me included -- face when they start dealing with dates and times is : Given a java.util.Date ...

Thursday, 10 January 2008

ABAP Obtaining characteristics of a document from the classification system

In addition to a previous post regarding getting classification information for objects of type Material or Batch and thanks to additiona...

Wednesday, 12 December 2007

Oracle 10g SQL Mass rebuild and move the indexes of a specified user

Here is a function that rebuilds or coalesces the indexes of a specified user.If asked to rebuild the indexes then you can supply a table s...

Tuesday, 11 December 2007

JDeveloper OC4J Changing the language that eror messages are displayed

I have had this problem many times. During development when something went wrong with my application, all I could get after the Internal se...

Thursday, 6 December 2007

ADF BC Canceling edits in the current record of a ViewObject

The number of things that one man misses becomes frightening especially when something is as crucial as a cancel edits button in a record d...

Thursday, 29 November 2007

ADF-BC/JSF Performing case insensitive searches

I have been asked to implement a service request system that will allow a company to record service requests from customer via a telephone ...

Wednesday, 28 November 2007

Where is the Oracle Database alert log located ?

This is something I keep forgetting so I think that I may as well add it here. On my Linux system the alert log is located in $ORACLE_HO...

Friday, 9 November 2007

ADF/JSF Getting the current row with code executed from a table bucking bean

The following code comes from the JDeveloper Forums courtesy of Frank Nimphus . If added to any event listener fired from "inside...

ADF/JSF Avoiding uncought exeptions after commit.

When using Oracle JDeveloper 10.1.3.x, you can find it very tempting to create "Create/Edit Record" pages by dropping an ADF Form...

Wednesday, 7 November 2007

JSF Passing parameters to included jsp pages

The question was brought up in the JDeveloper forum . When I started creating my first JSF pages I wanted to be able to create a menu that ...

Tuesday, 6 November 2007

BAPI / RFC with Delphi 2006 / 2007

Six months ago I wrote an article regarding how to install and use SAP's Active X components using Delphi 6. Here is the sequel regard...

Friday, 19 October 2007

JDeveloper 10.1.3.3 JSP Compiler Errors in JSF faces

I have run into the following error while modifying JSF pages in JDeveloper 10.1.3.3 on openSUSE. While modifying the page contents using t...

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About Me

Athanassios Bakalidis: Komotini, Rodopi, Greece; A programmer by hobby and profession, My interests include WEB programming using JSP's, JSF and PHP. Since my student days I have grown to like "Borland's" compilers and IDEs so desktop programming with Delphi and C++ Builder is among my interests. (Now, I look forward to the day I will start a project with lazarous) My work duties involved programming with SAP's built in ABAP language, so you may find some little things about SAP programming here. My favourite OS is Linux (I used openSUSE and SLES both at home and at work, but since 2008 I started working with two Red Hat clones, CentOS and Oracle Enterprise Linux while I changed my personal computers OS to fedora). I am α strong supporter of open source software. I am also interested in Databases and database programming. My main database is (was) Oracle, though I try to keep in touch with MySQL as well

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