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My Oracle Notes
Here are some quick memos about Oracle. They are mostly here to be a place where I can refresh my memory.
Start a Oracle databse instance
* Setup paths and SID
export PATH=$PATH:$ORACLE_HOME/bin
export ORACLE_SID=mysid
* Start TNS Listner
* Startup the instance
$ sqlplus "/ as sysdba" SQL*Plus: Release 9.2.0.8.0 - Production on Mon Dec 3 11:51:25 2007 Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved. Connected to an idle instance. SQL> startup ORACLE instance started. Total System Global Area 1398769232 bytes Fixed Size 730704 bytes Variable Size 738197504 bytes Database Buffers 654311424 bytes Redo Buffers 5529600 bytes Database mounted. Database opened.
Start a Oracle databse instance
* Shutdown paths and SID
export PATH=$PATH:$ORACLE_HOME/bin
export ORACLE_SID=mysid
* Stop the instance
$ sqlplus "/ as sysdba" SQL*Plus: Release 9.2.0.8.0 - Production on Mon Dec 3 11:51:25 2007 Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved. Connected to an idle instance. SQL> shutdown immediate Database closed. Database dismounted. ORACLE instance shut down.
* Stop TNS Listner
Clean-up old trace and log files
To free up some disk space you can remove old archive logs and other files which normally isn't needed after a period of time.
Donald K. Burleson have published some clean up scripts in his Oracle Tips article. From these I have created my own small commands (which lacks alot of path checks). They have worked for me so far but there is no guarantee that these will not destroy your database (or at least the data).
find $ORACLE_HOME -name '*.trc' -mtime +14 -exec rm {} \;
find $ORACLE_HOME -name '*.aud' -mtime +14 -exec rm {} \;