DB2 for z/OS Locking for Application Developers Part 8

Welcome to part eight of this blog series on DB2 Locking for Application Developers, which is about considerations for coding your application not only for data integrity (the main focus of this series of articles), but also for performance and concurrency, taking into account the transaction isolation levels in effect at run time.

This article continues the discussion in part seven about read-only cursors running at a transaction isolation level of cursor stability (CS), supplemented by the fairly common practice of combining read-only cursors with searched updates. I’ll explain later in the article the perils of access-dependent cursors and why you should avoid using them. The article concludes with a brief discussion of the concept of optimistic locking, also called optimistic concurrency control.

Visit the Triton Consulting tech blog to continue reading. 

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