Part five of my – everlasting – walk through of new Aggregate and Scalar functions. This time I will start with the new AGGREGATE functions introduced in Db2 12. LISTAGG This is mainly of interest due to the fact that…
How to avoid timestamp problems while going from winter to summer time in a Db2 for z/OS system? Is the CHAR or Timestamp use, the safest timestamp procedure? How do you fix it? This year, as every year, the moment arrives for…
Or: How I Learned to Stop Worrying and Love the Auditor A guideline in 5 big Steps to Audit for Personal Data Protection First up, this is not another Audit review and health check sell! We, and I mean especially…
Or: „Even Roy learns things from Listserv!“ While discussing negative DBIDs on Listserv the other day, another poster commented on my SQL Code snippet and said that it could well be better changing from LOCATE and HEX to using the…
„Breaking the rules is often fun, although we cannot condone it. But breaking the rules of Real Time Statistics (RTS) in Db2 12 can really land you in hot water. We provide two queries that may give you a Get…
Db2 Optimizer & access path selection for Db2 11 & Db2 12 : Db2 Catalog data | Problematic default values | Correlations in the Db2 Catalog It has been six years since the last update so I thought, after Terry Purcell’s excellent…
Troubleshooting on site : how a simple Db2 SQL INSERT statement causes a high GETPAGES rate and how to fix it. One shop I visit had an interesting problem the other day. I thought I would share it with…
Db2 12 APAR – time saving list With all the talk about “agile” going on, and referring to one of my older 2017-09 newsletters* on APARS, I think it is time to tell you all about another little service that…
How to validate that your Db2 LOGs are OK ? Sizing of LOGs changed quite a bit in Db2 11 and Db2 12, so I thought a little recap about the correct sizing and ZPARMS was in order this…
We recently held one of our Design Councils, this one was all about Db2 12 and going Agile. I was asked the following question after one of my presentations about verifying Db2 Code/Catalog/Function Levels: “How many APARs really can affect…
