How to import schemas using datapump

Using datapump to import one or more schemas in an Oracle database is very easy.

dpimp user/password dumpfile=file.dmp schemas=SCOTT,USER2 directory=DMP_DIR

Comments

Post a Comment

Popular posts from this blog

Auditing user logon and logoff in Oracle

To track when a user logs on or off Oracle, enable auditing and audit CONNECT in your database.  Then you can query DBA_AUDIT_TRAIL to find logon and logoff info. alter session SET NLS_DATE_FORMAT = 'DD-MM-YYYY HH24:MI:SS'; select username, action,action_name,timestamp,logoff_time from dba_audit_trail where action_name = 'LOGON' and username = '&user'; Here are some more helpful links: http://itechshare.blogspot.com/2010/06/oracle-how-to-track-logon-logout-in.html http://itechshare.blogspot.com/2010/06/oracle-why-dbaaudittrail-shows-more.html
Read more

RMAN Restore vs. Recovery - what's the difference?

RESTORE is used to restore the datafiles from a backup. You can restore up to the time of the backup or a point before using SET UNTIL . You would lose any changes made to the database after the backup by performing only a RESTORE. RECOVER is used to roll the database forward after a RESTORE by applying the redo logs. In essence, RECOVER = RESTORE + redo logs. The following example assumes you have lost your control files and datafiles, but still have your redo logs. $ rman target / nocatalog RMAN> startup nomount; RMAN> restore controlfile from '/oback/controlfile'; RMAN> alter database mount; RMAN> restore database; RMAN> recover database; RMAN> alter database open resetlogs;
Read more