Articles

2014-03-06

This article will convince database developers that types in the Oracle

2014-06-01

I have got a website with a search form. I want to display a limited number of results to the user and have him/her navigate through different pages. Is this possible using plain SQL?

2014-09-01

Could you tell me what the difference is between NVL and COALESCE?

2014-12-01

What is an ANTI-JOIN? And what is the difference between the SEMI-JOIN and the ANTI-JOIN?

2015-03-06

Last year I did a presentation on table functions at KScope. One of the questions I got was: ‘If pipelined table functions provide their results faster, why would you want to use a normal table function?’ I couldn’t come up with the answer then, maybe you can help?

2015-06-01

Recently I heard someone talk about overloading in Java. What is it, is it possible in PL/SQL and if so, how would I use it?

2015-09-01

We have bought an application that runs on an Oracle database. There are triggers defined on the tables, but we want to add our own code to these triggers, but we don’t have access to the source code. What is the approach we should follow to accomplish this?

2015-12-31

We have gone through a merger at our company where we are trying to merge the databases. The problem now is that we have duplicate records in our tables. We can of course go through all the records by hand and check if they exist twice. Another option is to build an application to do this. But using the Oracle Database there must be a better way to do this.