Wednesday, April 29, 2020

Clearing the Air Regarding Db2 12 for z/OS and "Deprecated Objects"

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On a number of occasions over the past several months, I have seen that there is some misunderstanding in the Db2 for z/OS community regardi...
Monday, March 30, 2020

Db2 for z/OS Online LOAD REPLACE - Minimizing Impact on Transactions

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A couple of years ago, IBM introduced an important enhancement for the Db2 for z/OS LOAD utility, via the fix for an APAR (the APARs are PI6...
167 comments:
Friday, February 28, 2020

Db2 for z/OS: Clearing Up Some Matters Pertaining to 10-Byte RBA and LRSN Values

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At this time, many Db2 for z/OS-using organizations have already completed their migration to Db2 12. Others are still in the process of acc...
3 comments:
Thursday, January 30, 2020

Db2 for z/OS and RACF, Part 2: Db2-Internal Security

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In the Part 1 post of this two-part blog entry, I described how RACF can be used to provide "external" security for a Db2 for z/OS...
17 comments:
Monday, December 30, 2019

Db2 for z/OS and RACF, Part 1: External Db2 Security

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In a Db2 for z/OS context, RACF (the IBM security management subsystem for z/OS systems) can serve two important purposes, providing securit...
6 comments:
Tuesday, November 26, 2019

Clearing Some Things Up Regarding the CICS-Db2 for z/OS Interface

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Not long ago, a very experienced Db2 for z/OS person contacted me with some questions about the CICS-Db2 interface. He mentioned that he did...
2 comments:
Wednesday, October 30, 2019

Db2 for z/OS: The Potential Performance Impact of 100% CPU Utilization

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Twice during the current calendar year, I've worked on a Db2 for z/OS performance issue that I've encountered at various times over ...