Titlebook: Secrets of the Oracle Database; Norbert Debes Book 2009 Norbert Debes 2009 DBMS.Interface.Oracle.SQL.business intelligence.database.databa

Foam-Cells

Alter Session/System Set EventsALTER SESSION statement for the presumably best known event 10046 at level 8. Yet, it is undocumented how to switch event 10046 off. The remaining levels of event 10046, which are also very useful, are undocumented too. Furthermore, there are hundreds of other undocumented events that may be set wit

esoteric

抒情短詩

X$KSLED and Enhanced Session Wait Datam processes found in V$PROCESS with wait information. It’s a bit cumbersome to correctly interpret the columns WAIT_TIME and SECONDS_IN_WAIT of the view V$SESSION_WAIT depending on the value of the column STATE.

謙虛的人

Event 10046 and Extended SQL Tracemance of an application he or she may switch on extended SQL trace without assistance from a DBA. Such a feature is a big time-saver since the DBA does not need to identify which database session serves the end user and it also reduces the risk that a transient performance problem does not reproduce by the time a DBA can attend to it.

SOB

synchronous

Book 2009 of experience and word of mouth through knowing the right people. What Norbert writes is accurate, well-tested, well-illustrated by clear examples, and sure to improve your ability to make an impact on your day-to-day work with Oracle..

dowagers-hump

Hidden Initialization Parametersed parameters only. There are 540 undocumented parameters in Oracle9i Release 2, 1,124 in Oracle10g Release 2, and 1,627 in Oracle11g. Their names and a short description may be retrieved with the following query (file hidden_parameters.sql):

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cylinder

vasculitis