dbwr(1LOCAL) MISC. REFERENCE MANUAL PAGES dbwr(1LOCAL)
NAME
dbwr - Database Writer background process; writes new data
to the database
SYNOPSIS
dbwr
DESCRIPTION
The Database Writer or dbwr background process, described in
the ORACLE Database Administrator's Guide, writes modified
blocks from the database buffer cache to the database.
Blocks are written in the proper order to maintain database
integrity. The algorithm used assures that buffers are
always available for writing. If additional buffers are
needed, older buffers are written to the database first.
The Database Writer does not need to write blocks when a
transaction commits. The integrity of the data is
guaranteed by the writing of committed data to the online
redo log, rather than by writing to the database at commit
time.
FILES
Writes data to database files.
SEE ALSO
ORACLE Installation and User's Guide for your operating sys-
tem; ORACLE Database Administrator's Guide
Sun Release 4.1 Last change: 23 March 1989 1