Cell services automatically start when the cell is started. You can follow the following procedures to start and stop manually. “CELLSRV, MS and RS” services …
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How To Reset Rman Configurations
It is possible to reset Rman configurations to default values. You can see “#default” at the end of the unmodified configurations. It is possible …
Read More »ORA-39014, ORA-39029, ORA-31671 and ORA-00600 errors in 12c expdp/impdp operations
In the 12c databases, ORA-39014 ORA-39029 ORA-31671 and ORA-00600 errors can be received during expdp or impdp operation. In such a case, existing processes …
Read More »ORA-01105 error in alter system flush redo operation
The “alter system flush redo” command, which is used to transfer operations in the redo log files in the primary database to the standby …
Read More »How To Get an Existing Oracle User’s Create Script
In this article, I will tell you to get the create script of an oracle user. First, we will create a file named user.sql that …
Read More »ORA-01722 error received during upgrade process
When the catupgrd.sql is run during the manual upgrade process, it ends with “ORA-01722: invalid number” error due to the Database Vault configuration in …
Read More »enq: TX – row lock contention wait event
enq: TX – row lock contention can be regarded as a row lock conflict wait event in operations. This event indicates that a session is …
Read More »“Latch free” and “library cache: mutex X” wait events
Latch free and library cache: mutex X wait events can be seen for the corresponding SQL statements in intensive delete and insert operations in …
Read More »ORA-12805: parallel query server died unexpectedly error in 12c databases
In 12c databases, ORA-12805, ORA-07445 [qertqistart] or ORA-600 [15803] errors may occur depending on bug 25694206. User operation cannot be completed due to the closing …
Read More »Why Oracle User is Locked, Who is Locking Oracle User
If an oracle user is locked, it is usually caused by an incorrect password entry. In some cases, even if you remove the user’s …
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