STARTUP

STARTUP [FORCE] [RESTRICT] [PFILE=filename] [MOUNT [dbname]
| OPEN [open_options] [dbname] | NOMOUNT]

where open_options has the following syntax:

READ {ONLY | WRITE [RECOVER]} | RECOVER

Starts an Oracle instance with several options, including mounting and opening a database. You cannot use STARTUP to start Oracle7 instances.

Terms | Usage | Examples | Top

Refer to the following list for a description of each term and clause:

FORCE

Shuts down the current Oracle 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.

RESTRICT

Only allows Oracle 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.

PFILE=filename

Causes the specified parameter file to be used while starting up the instance. If PFILE is not specified, then the default STARTUP parameter file is used. The default file used is platform specific. For example, the default file is $ORACLE_HOME/dbs/init$ORACLE_SID.ora on UNIX, and %ORACLE_HOME%\database\initORCL.ora on Windows.

MOUNT dbname

Mounts a database but does not open it.

dbname is the name of the database to mount or open. If no database name is specified, the database name is taken from the initialization parameter DB_NAME.

OPEN

Mounts and opens the specified database.

NOMOUNT

Causes the database not to be mounted upon instance startup.

Cannot be used with MOUNT, or OPEN.

RECOVER

Specifies that media recovery should be performed, if necessary, before starting the instance. STARTUP RECOVER has the same effect as issuing the RECOVER DATABASE command and starting an instance. Only complete recovery is possible with the RECOVER option.

Recovery proceeds, if necessary, as if AUTORECOVERY is set to ON, regardless of whether or not AUTORECOVERY is enabled. If a redo log file is not found in the expected location, recovery continues as if AUTORECOVERY is disabled, by prompting you with the suggested location and name of the subsequent log files that need to be applied.

Usage | Terms | Examples | Top

You must be connected to a database as SYSOPER, or SYSDBA. You cannot be connected via a multi-threaded server.

STARTUP with no arguments is equivalent to STARTUP OPEN.

STARTUP OPEN RECOVER mounts and opens the database even when recovery fails.

Examples | Terms | Usage | Top

To start an instance using the standard parameter file, mount the default database, and open the database, enter

STARTUP 

or enter

STARTUP OPEN database 

To start an instance using the standard parameter file, mount the default database, and open the database, enter

STARTUP FORCE RESTRICT NOMOUNT 

To start an instance using the parameter file TESTPARM without mounting the database, enter

STARTUP PFILE=testparm NOMOUNT 

To shutdown a particular database, immediately restart and open it, allow access only to database administrators, and use the parameter file MYINIT.ORA. enter

STARTUP FORCE RESTRICT PFILE=myinit.ora OPEN database 

To startup an instance and mount but not open a database, enter

CONNECT / as SYSDBA 


Connected to an idle instance.


STARTUP MOUNT 


ORACLE instance started. 
 
Total System Global Area     7629732 bytes
Fixed Size                     60324 bytes
Variable Size                6627328 bytes
Database Buffers              409600 bytes
Redo Buffers                  532480 bytes