News, views, and items of interest on IBM's Db2 database management system and mainframes.
Wednesday, June 19, 2013
DB2 Locking, Part 12: Lock Promotion and Escalation
›
It can be potentially troublesome when DB2 lock promotion and escalation occur. These situations can greatly reduce the availability of conc...
2 comments:
Monday, June 17, 2013
DB2 Locking, Part 11: Data Sharing Global Lock Management
›
Data sharing adds an additional level of complexity to the DB2 locking strategies and techniques we have been discussing in this series. Bec...
2 comments:
Monday, June 10, 2013
DB2 Locking, Part 10: Know Your ISOLATION Levels
›
DB2 provides a way to change the way that a program or SQL statement acquires locks. That way is known as the isolation level and it can be...
4 comments:
Monday, June 03, 2013
DB2 Locking, Part 9: Avoid Bachelor Programming Syndrome
›
Unless you plan for, and issue regular COMMITs in your DB2 application programs, you will be causing locking problems. It is important for e...
Thursday, May 30, 2013
DB2 Locking, Part 8: LOBs and Locking
›
When a row is read or modified in a table containing LOB columns, the application will obtain a normal transaction lock on the base table. T...
‹
›
Home
View web version