To perform various operations on database objects, system and object privileges must be assigned to users. Each system privilege allows a user to perform certain …
Read More »ORACLE
Find UNDO Usage by Sessions
You can find the undo usage of a session with the following query. Historical information is also available. You can find the undo usage of …
Read More »Enable Trace For a Session in Oracle
You may need to enable trace for a session for many reasons. For example, you may need to determine which queries run in a session. …
Read More »PDB$SEED Database in Container Database
The PDB$SEED or SEED database is a pluggable database template for pluggable databases to be created by users. Used as a template to create new …
Read More »Apply Patch on Oracle DB Home
Steps to Apply Patch on DB Home This document shows how to apply patch on Oracle home / databases. July 2019 PSU for Oracle databases. …
Read More »Query Whether the Oracle Database is CDB or Non-CDB
You can query the CDB column in the V$DATABASE view to see if a database is CDB. If the current database is CDB, the column …
Read More »Real-Time SQL Monitoring with /*+MONITOR*/ Hint in Oracle
As of Oracle 11g R1, long-running queries or queries that we run with the / * MONITOR * / hint are automatically monitored. During the …
Read More »How To Change Enterprise Manager Database Express Port in 12c
You can also change the port of Enterprise Manager Database Express 12c after installation. You can find the current port as follows. [crayon-6742c763e6bb5181286132/] You can …
Read More »Grant Read-Only Access To Enterprise Manager Database Express 12c
Oracle Enterprise Manager Database Express, or EM Express, is a web-based tool used to manage Oracle 12c databases. In order to ensure that the user …
Read More »opidrv aborting process J00n ospid (nnnnn) as a result of ORA-1013
In Oracle 12.2 databases, this error is written in the alertSID.log file when the default maintenance job is timeout and the corresponding job is automatically …
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