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Oracle Data Warehouse Tuning for 10g
book

Oracle Data Warehouse Tuning for 10g

by Gavin JT Powell
April 2011
Intermediate to advanced content levelIntermediate to advanced
504 pages
16h 49m
English
Digital Press
Content preview from Oracle Data Warehouse Tuning for 10g
7.3 Tools for Tuning Queries 201
Chapter 7
SQL code is rare in mission-critical OLTP-type databases. Most OLTP
databases are controlled by applications.
The V$SESSION_EVENT performance view provides wait events for
sessions for the entire life of the session. The V$SESSION_WAIT perfor-
mance view provides the same information, but as the wait events are
occurring; it also provides access to deeper layers using parameter pointer
values as shown in Figure 7.20. The V$SESSION_EVENT view is effec-
tively an accumulation of wait events for sessions during the life of those
sessions. Thus, V$SESSION_EVENT could be used to isolate sessions
causing specific problems. ...
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Publisher Resources

ISBN: 9781555583354