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Oracle util apps on Linux gives a ‘_X11TransSocketINETConnect() can’t get address for local_host:6000′ 14 Jul 2012 | 12:30 pm
The error would be something like, This happens when you try to invoke a graphical UI via the command line or SSH. I have this for running DBCA and the installer of Oracle Client on Linux. The solut...
How to get the logical file path in a filesystem representation table in Oracle DB? 15 Feb 2012 | 04:56 pm
Imagine the following table. First column (ID) is the Primary Key. There is a reflexive relationship between the 1st column and the 3rd (notice the colouring of the letters). Basically, Parent_ID ment...
How to get a value from a Map for sure [using default values and Generics]? 27 Jan 2012 | 07:06 am
Well.. what I do code here is too simple for this blog but I’m pretty proud of my usage of generics in this. Logic is, check for a value in the map… If it is there, get it. Otherwise, get a default. ...
How to restart Oracle DB service in Linux? 23 Jan 2012 | 03:50 am
via http://www.cyberciti.biz/faq/how-do-i-start-oracle-service-in-unix/
How to traverse a Tree in Depth First Order using Stacks without Recursion (in Java) 17 Dec 2011 | 07:06 am
Consider a tree structure made up of Nodes and their specialized subclasses. Each Node has children which could be subclasses of Node. We’re going to traverse this tree structure without using recurs...
How to have nested @Transactional blocks with Spring 3 with common propagating ROLLBACK? 14 Dec 2011 | 03:08 pm
Problem: Here’s the code Both inner methods are transactional. Now, what I wanted to happen was, when outer() is called and if inner2() is rolled back, inner1() too should roll back. Solution: Use...
What are good extensions to Drupal CCK? [Living Article] 10 Oct 2011 | 02:51 am
Since I couldn’t find a good list of extensions to CCK, I thought of making one Views – Something you might even find useful than CCK. Enables you to make custom pages and blocks etc based on nodes a...
How to not to lose the Time fields when passing a Date to Oracle Stored Proc using JDBC? 7 Oct 2011 | 04:49 am
Problem: I had an SP to call which takes a param Date. I called this via JDBC with a valid Java Date, but it refused to save the time fields I supplied. When preparing the SP for calling I did as fol...
How to find hanging Transactions / Locks in the Oracle DB? 21 Aug 2011 | 04:21 am
The sessions in Oracle is shown in a system view called v$session. It has a quite a bit of columns, so my team mate Gowtham lists the most significant ones: Just to summarise the list of all the even...
How to Do a Case Insensitive ORDER BY from Oracle DB? 11 Aug 2011 | 03:40 am
A problem with Oracle DB that I see is that the ORDER BY clause is case sensitive. I came across this problem and I found the solution here in a post by Natalka Roshak. Solution is something like the ...
