Skip to main content

DATABASE START UP MODES( STARTUP - UPGRADE - RESTRICT - FORCE - QUIET)



STARTUP UPGRADE
-------------------------------
Starts the database in OPEN UPGRADE mode and sets system initialization parameters to specific values required to enable database upgrade scripts to be run. UPGRADE should only be used when a database is first started with a new version of the Oracle Database Server.


STARTUP RESTRICT
-----------------------------
Only enables Oracle Database users with the RESTRICTED SESSION system privilege to connect to the database. Later, you can use the ALTER SYSTEM command to disable the restricted session feature.

STARTUP FORCE
------------------------

Shuts down the current Oracle Database instance (if it is running) with SHUTDOWN mode ABORT, before restarting it. If the current instance is running and FORCE is not specified, an error results. FORCE is useful while debugging and under abnormal circumstances. It should not normally be used.

SQL> STARTUP FORCE;
ORACLE instance started.

Total System Global Area  805306368 bytes
Fixed Size                  1289996 bytes
Variable Size             218104052 bytes
Database Buffers          583008256 bytes
Redo Buffers                2904064 bytes
Database mounted.
Database opened.
SQL> SELECT OPEN_MODE FROM V$DATABASE;

OPEN_MODE
----------
READ WRITE

SQL> STARTUP FORCE;
ORACLE instance started.

Total System Global Area  805306368 bytes
Fixed Size                  1289996 bytes
Variable Size             218104052 bytes
Database Buffers          583008256 bytes
Redo Buffers                2904064 bytes
Database mounted.
Database opened.

SQL> STARTUP

ORA-01081: cannot start already-running ORACLE - shut it down first


STARTUP QUIET
-----------------------
Suppresses the display of System Global Area information for the starting instance.

SQL> STARTUP QUIET;
ORACLE instance started.
Database mounted.
Database opened.


Thank You!
Labels:

Comments

Post a Comment

Popular posts from this blog

ORA-39014: One or more workers have prematurely exited.ORA-00018: maximum number of sessions exceeded

ERROR: I was Performing a full database import and during the import I faced the below error. ORA-39014: One or more workers have prematurely exited. ORA-39029: worker 6 with process name "DW07" prematurely terminated ORA-31672: Worker process DW07 died unexpectedly. Job "SYSTEM"."SYS_IMPORT_FULL_04" stopped due to fatal error at 00:59:40 ORA-39014: One or more workers have prematurely exited. SOLUTION:  Run the import with fewer parallel processes, like PARALLEL=2 instead of 8. I was able to run the import successfully. NOTE 1: This errors occurs when there are less session allocation in the database. check the session,process parameters and increase them accordingly. To avoid such errors again. NOTE 2 : Note: Increasing processes parameter increases the amount of shared memory that needs to be reserved & the OS must be configured to support the larger amount of shared memory. So here we first need to increase the Memory & SG...
Post a Comment
Read more

ORA-01143: cannot disable media recovery - file 1 needs media recovery

I got a request from the client - To flashback the database to the existing restore point & disable flashback and archive log mode for database UATB. Here I came a cross error - ORA-01143. I followed the below steps. 1. SQL> select name from v$database; NAME ------------ UATB 2. SQL> SELECT NAME FROM V$RESTORE_POINT WHERE GUARANTEE_FLASHBACK_DATABASE='YES' ORDER BY TIME; NAME --------- UATB_COPY Here I'm going to restore the database to the above restore point. NOTE: The flashback database restore has to be done in MOUNT stage of the database. SQL> select name from v$database; NAME --------- UATB SQL> shut immediate; Database closed. Database dismounted. ORACLE instance shut down. SQL> startup mount ORACLE instance started. Total System Global Area  612368384 bytes Fixed Size                  1250428 bytes Variable Size             167775108 bytes ...
2 comments
Read more