by XTIVIA | Dec 10, 2015 | Blog, Databases
Statistics are the most basic element of DB2 performance. One of the first questions any consultant or support person will (should!) ask you when you come to them with a query performance problem is when the last runstats was run for the tables involved. What are...
by XTIVIA | Oct 28, 2015 | Blog, Data Management, Databases
To run any SQL or perform runstats or other actions, you must establish a connection to a DB2 database. Connecting to a Database Connecting to an existing database on the same database server the database exists on, or connecting to an already cataloged database is...
by XTIVIA | Oct 22, 2015 | Blog, Data Management, Databases
In order to connect to a DB2 database that is not on the server or workstation you’re connecting from, you’ll need to make DB2 aware of that database by cataloging it, unless you’re using JDBC type 4 drivers. JDBC type 4 drivers do not require that a...
by XTIVIA | Oct 13, 2015 | Blog, Data Management, Databases
What can you do to attract and retain skilled and constantly evolving DB2 DBAs? In my 14 years working with DB2 at a number of companies, I have seen a number of different environments, and the ones that keep talented folk happy provide these things: Technical Breadth...
by XTIVIA | Oct 6, 2015 | Blog, Data Management, Databases
Data Corruption is something that no one really wants. Yet every now and then, we see some customers run into this. Any such issues are almost always the result of disk or SAN level issues. You will see errors like this: SQL1655C The operation could not be completed...
by XTIVIA | Sep 24, 2015 | Blog, Databases
With fixpack 5 of DB2 10.5, IBM introduced Native Encryption for data at rest in DB2. This is a fairly significant new feature for introduction in a fixpack. It does require separate licensing – either the Advanced Edition of ESE or WSE or the separate purchase...