Articles & Content


DB2 9 SQL Features - Richer and Faster! (E06)

Topic: 2009 EU

Subtopic: DB2 for z/OS

DATE: 2009-10-6 (13:00 - 14:00)
SPEAKERS: Suresh Sane (DST Systems Inc)

This presentation provides an in-depth look at the top DB2 9 SQL features. We present a clear and detailed explanation of each feature showing how you can use this feature in your shop and explain how you will benefit from these enhancements. We will not just scratch the surface but take a deep dive into features most important to you as a developer and a DBA.

EXP. LEVEL: Beginner,Intermediate,Advanced


Usability enhancements - MERGE, SELECT FROM UPDATE/DELETE/MERGE, INSTEAD OF triggers, INTERSECT and EXCEPT, TRUNCATE, FETCH FIRST n ROWS and ORDER BY in subselects and fullselects, SOUNDEX and DIFFERENCE functions

OLAP functions - ROW_NUMBER, RANK, DENSE_RANK, NULLS first/last, Cultural sort and COLLATION_KEY data

Locking enhancements - ROWCHANGE timestamp, Skip locked

Indexing enhancements - Index on expression, Index compression, Larger index pages, Relief for sequential key inserts, Index usage

Performance enhancements - Reordered Row Format (RRF), Histogram statistics, REOPT(AUTO) for dynamic SQL, Query optimization improvements

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