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Oracle in a Nutshell
book

Oracle in a Nutshell

by Rick Greenwald, David C. Kreines
December 2002
Intermediate to advanced content levelIntermediate to advanced
928 pages
85h 29m
English
O'Reilly Media, Inc.
Content preview from Oracle in a Nutshell

Dynamically Modifiable Parameters

While most initialization parameters are static, taking their values from the initialization file as it exists at the time of database startup, some may be dynamically modified while the instance is up and the database is open.

Dynamic modification is different from dynamic storage of a changed value in the SPFILE. In all versions of Oracle, you can dynamically modify a setting using the ALTER SYSTEM or ALTER SESSION command. Starting with Oracle9i, these changes may also be dynamically stored in the SPFILE, depending on the value of the SCOPE clause of the ALTER command.

In the individual parameter descriptions in the following sections, we indicate which parameters may be dynamically modifiable (the Dynamic entry in the parameter description) and how they can be modified (via ALTER SYSTEM, ALTER SESSION, or both).

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Publisher Resources

ISBN: 0596003366Errata Page