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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

Locks

The following views provide information about the current status of locks in the database:

*_BLOCKERS

Lists all sessions holding locks for whose release others are waiting.

DBMS_LOCK_ALLOCATED

Shows which locks the current user has allocated.

*_DDL_LOCKS

Lists all existing DDL locks.

*_DML_LOCKS

Lists all existing DML locks.

*_KGLLOCK

Lists all KGL (Kernel Generic Library cache) locks in the database.

*_LOCK_INTERNAL

Contains internal information for each lock defined in *_LOCKS.

*_LOCKS

Lists all locks held or requested in the database.

*_WAITERS

Lists all sessions that are waiting on a lock held by another session.

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Publisher Resources

ISBN: 0596003366Errata Page