Blog
Welcome to Datavail’s Blog, where you can read the latest insights, tips and opinions of our experts on all things data and technology.
There are two basic mindsets on when to REBIND your DB2 programs. The first — which I believe is the best approach — is to REBIND regularly after running RUNSTATS.
Character Versus Numeric Data Types
Most DBAs have faced the situation where one of their applications requires a four-byte code that is used to identify products, accounts, or some other business object.
In this age of ERP/CRM systems, Java/JDBC programming, and web applications, all of which heavily rely on dynamic SQL, its use is becoming more ubiquitous.
Intelligent Automatic Reoptimization?
Most seasoned SQL programmers know that when you use host variables, DB2 may not always come up with the absolutely most optimal access path at bind time.
The Most Important Thing is Recoverability
Many DBAs think that managing performance is the most important thing they do, but they are confusing frequency with importance.
A recent question I received went something like this: “Can I get the odd and even number of rows from a DB2 table?” Learn the answer in this post.
On Date Formats in DB2 – Part 1
From time to time I use the blog as a forum to answer questions I get via e-mail. Today, we address a popular theme – dealing with DB2 date data.
DB2 allows you to add and subtract DATE, TIME, and TIMESTAMP columns. In addition, you can add date and time durations to, or subtract them from, date and time columns.
The question was: I want to perform a retry on an INSERT under DB2 Z/OS when I get a deadlock/timeout. -911 causes a rollback automatically.