In this article I will demonstrate a method where the INSERTALL statement can be used to insert rows into two tables that are related by a foreign key constraint. The following example was developed and tested using the Pre-Built Oracle Database App Development VM which at the time of this post […]
Oracle 12c introduced the Identity Column. You can find out more about this feature in the new features guide and within the CREATE TABLE documentation. In this article I will use Tom Kyte’s run stats utility to compare the performance of the IDENTITY column with the explicit use of a sequence object. The script […]
The ability of using SQL to operate on Associative Arrays or PL/SQL tables as they were known when I started working as a Database Developer is one of my favourite new features of 12c. I wasn’t aware of it until I read the post by Connor Mcdonald. It’s announcement within […]
Recently I needed to find out how many rows in a table had a certain status and display a grand total of the number of objects. In this post, rather than create a demo table with the various status I am going to base my example on the user_objects data […]
The inspiration for this post came after recently overhearing a developer asking why his query was not returning a row. It had been working fine, the only change was instead of ROWNUM = 1, he had changed it to ROWNUM = 2. The query was could have been doing something […]
