Difference between revisions of "Delete / drop database"
From dbawiki
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(→Find location of files to delete) |
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select name from v$datafile; | select name from v$datafile; | ||
select member from v$logfile; | select member from v$logfile; | ||
| − | + | select member from v$controlfile; | |
show parameter dump | show parameter dump | ||
show parameter archive_dest | show parameter archive_dest | ||
| + | select name from v$database; -- to be sure! | ||
</pre> | </pre> | ||
| + | |||
===Stop the services related to the instance=== | ===Stop the services related to the instance=== | ||
<pre> | <pre> | ||
Revision as of 11:35, 22 September 2017
Contents
Windows
Check where the ORACLE_HOME for this instance is
Start:Run... services.msc
Double click on OracleService<SID>, the first part of "Path to executable" is the home or regedit and go to HKEY_LOCAL_MACHINE\SOFTWARE\ORACLE See list of homes
Find location of files to delete
Connect as sys and
select name from v$datafile; select member from v$logfile; select member from v$controlfile; show parameter dump show parameter archive_dest select name from v$database; -- to be sure!
set ORACLE_HOME=<oracle home> oradim -delete -sid <SID>
*Clean up database files: delete %ORACLE_HOME%\database\PWD<SID>.ora and any pfile, spfile and .dat files Delete the files and directories shown by above queries
Check in Registry to make sure entries have gone from HKEY_LOCAL_MACHINE\SOFTWARE\ORACLE\KEY_<home>
Unix
- Clean up RMAN repository
rman target sys/sys@DBTOGO catalog rman/rman@rmancat RMAN> unregister database;
- Drop the database (using the silent option of dbca)
. oraenv DBTOGO dbca -silent -deleteDatabase -sourceDB DBTOGO Connecting to database 4% complete … 100% complete
- Delete database references manually from other places
- ${ORACLE_HOME}/network/admin/tnsnames.ora (possibly on many hosts)
- ${ORACLE_HOME}/network/admin/listener.ora (probably only on this host)
- stop / restart the listener if this db was attached to a general listener
- remove entry from /etc/oratab
- Is it a clustered database?
If so, remove it from the Veritas (Solaris) or HACMP (AIX) configuration.
- Remove from any monitoring software (Grid, 3rd party)
- Clean any cleanup script where it may be hard-coded (Eek!)
- Delete archivelog directory
- Remove the database definition from backup software
