3
votes
2answers
119 views

cross database way to force join strategies

[how to enforce the query to use certain join algorithm] Knowing that there are several joining algorithms [Nested Loop; Sort Merge; Hash Join], when implementing a query , is there any technique to ...
4
votes
2answers
356 views

Can I optimize for the zIIP processor?

Is it possible to change SQL in a z/OS mainframe COBOL application so that it becomes eligible to be directed to the IBM System z Integrated Information Processor (zIIP)?