For when a first initial is all you can remember
Tweet With DB2 9.7′s introduction of modules and the ability to create an alias on a module, you now have the ability to program to a function or procedure’s interface rather than its implementation. Why would you want to do this? In today’s post, I will go over reasons to program to an interface and [...]
Tweet IBM released DB2 for LUW 9.7.2 recently and, along with numerous quality improvements, there were a number of interesting new features. In today’s post, I will talk about the “default parameters in UDFs” feature and how that helped me shrink the amount of code I needed to write for one of my UDFs.
Tweet Have you ever needed to write a pair of scripts: one to create some tables, data types, or user-defined functions and a second to uninstall the same? How do you test that the uninstall script did its job and didn’t leave any database objects behind? Today, using a tool that comes with DB2, I’ll [...]
Tweet If you remember the previous post, I showed how moving some logic from an anonymous block into a scalar function caused the program to start reporting an SQL0577N, saying that the underlying procedure was trying to modify SQL data even though it was doing no such thing. The clue to the cause of the [...]
Tweet Have you ever spent a long time trying to figure out what was causing DB2 to give you a bizarre error message only to find that the root cause was a default you didn’t know was a default? I got just such a message the other day when writing an SQL stored procedure. In [...]