Oracle & PL/SQL Stuff
Making Oracle Forms Use JRE instead of Jinitiator
· ☕ 2 min read · ✍️ sathya

By default, Oracle Forms Application Server serves Oracle Forms applications using the built-in Jinitiator JVM. While JVM works swell with cutting edge browsers1 it pretty much crashes most of the other browsers2 and doesn’t work at all in Chrome. There are workarounds but the workarounds do not play well while working with multiple tabs.


Swap Table Names Between Inserts And Selects on the Same Line using Regular Expressions
· ☕ 3 min read · ✍️ sathya

Background: For the past few days weeks, I have been working on a way to export selective data from one schema to import into another. Now the problem is that “selective” data refers to the data as stored across various tables in the custom application that I’ve been working on, with elaborate relational links between the tables ( if you’re curious, the table count on the related data was about 65) - so it was not just couple of tables that I had to export.


Golden Rules for Developers
· ☕ 1 min read · ✍️ sathya
Steven Feuerstein has a nice little presentation on some golden rules for developers. They aren’t anything new, yet not many people read/follow them 🙂 Download the PDF from here, or just read it via the embedded doc

Download Toad for Oracle for Free
· ☕ 2 min read · ✍️ sathya
Toad (acronym for Tool for Oracle Application Developers) is arguably one of the most popular and best known tools used by most people dabbling in Oracle databases ( or for that matter, most relational databases anyway). Toad’s reputation is so good, I’ve known few people swear by it and don’t even bother looking at other software, no matter how good. Toad’s got more features than your average SQL/ PL/SQL developer would use,and hence got a bit of a steep learning curve.

Brush up your PL/SQL knowledge with PL/SQL Challenge
· ☕ 1 min read · ✍️ sathya
If you’re looking to brush up on your PL/SQL knowledge, PL/SQL challenge is pretty nice. It’s a daily challenge quiz, where you are presented with multiple choice or true/false questions. It’s an initiative by Steven Feuerstein , who’s pretty well known. I just joined in, first few questions were not too tough 🙂 Join in, there’s some great prizes to be won . If you know of any more such websites, do drop in a comment and let me know.

Fixing Internet Explorer Crash on Launching Oracle Forms Application with jInitiator
· ☕ 2 min read · ✍️ sathya
I’ve been facing this really annoying problem for quite some time now. My job revolves around developing apps using Oracle Forms Builder. Oracle Forms applications, uses Java applets to run inside any browser, on most platforms. Here’s the kink - Oracle Forms applications by default uses Oracle’s jInitiator which is a JVM made by Oracle and allows a web enabled Oracle Forms client application to be run inside a web browser.

The Power and Simplicity of Oracle Hierarchical Queries
· ☕ 6 min read · ✍️ sathya

They say “Necessity is the Power of Invention” - a quote which I fully understood the impact today. I’ve been trying to understand Oracle’s Hierarchical Queries for a while now, but never fully understood the situation under which or when it would be used. Yesterday I got a reason to use it. Let me begin.


Exporting and Importing An Oracle database from one schema/user to Another schema/user easily
· ☕ 2 min read · ✍️ sathya

Couple of days ago at work I was asked to create a new environment(schema, user) for specific application testing conditions. While that was no big deal, I was also asked to import all the data from existing production environment into a new environment - and I was in a bit of bother here - generally the whole importing/exporting is done by DBA’s not developers. While I knew the usage of exp and imp commands, creating schema would require stuff like tablespace creating, adding data files and more importantly - grants which I had NO clue on. So after a bit of experimenting and consulting with my fellow colleague Rupam, I finally managed to export and import the data. This post is on how-to go about doing it.

If you want to skip all the commands and all just get the import / export done in 1-click try Easy Dump Oracle 1.1 - a tool which I found on the database server after all the headbanging 😐

Anyways here’s a step by step  process on how you export and import the data - do note that Easy Dump Oracle can import data ONLY if required grants are given to the user and tablespace has been allocated. For that you need to follow the below mentioned steps.


PL/SQL Procedure To Reset A Sequence To A Predefined Number in Oracle
· ☕ 2 min read · ✍️ sathya

Over the period of time that I’ve been working on PL/SQL, the one the thing that we end up doing often is reset the sequences we use for Primary keys in our tables. Why do we do that, you might wonder.

Consider this case: