13.50 STARTUP
Syntax
STARTUP db_options | cdb_options | upgrade_options
where db options has the following syntax:
[FORCE] [RESTRICT] [PFILE=filename] [QUIET] [ MOUNT [dbname] | [ OPEN [open_db_options] [dbname] ] | NOMOUNT ]
where open_db_options has the following syntax:
READ {ONLY | WRITE [RECOVER]} | RECOVER
where cdb_options has the following syntax:
root_connection_options | pdb_connection_options
where root_connection_options has the following syntax:
PLUGGABLE DATABASE pdbname [FORCE] | [UPGRADE] | [RESTRICT] [ OPEN {open_pdb_options}]
where pdb_connection_options has the following syntax:
[FORCE] | [UPGRADE] | [RESTRICT] [ OPEN {open_pdb_options}]
where open_pdb_options has the following syntax:
READ WRITE | READ ONLY
and where upgrade_options has the following syntax:
[PFILE=filename] {UPGRADE | DOWNGRADE} [QUIET]
Starts an Oracle Database instance with several options, including mounting and opening a database.
Prerequisites for a PDB STARTUP
When the current container is a pluggable database (PDB), the STARTUP command can only be used if:
-
The current user has SYSDBA, SYSOPER, SYSBACKUP, or SYSDG system privilege.
-
The privilege is either commonly granted or locally granted in the PDB.
-
The current user exercises the privilege using AS SYSDBA, AS SYSOPER, SYSBACKUP, or AS SYSDG at connect time.
-
The PDB is in MOUNTED mode, excluding the use of the FORCE option.
-
The PDB must be in READ ONLY or READ WRITE mode to be in mounted mode.
For more information, see the Oracle Database Administrator's Guide
Note:
Only use db_options to start a Database.
Only use root_connection_options to start a Pluggable Database while connected to the Root.
Only use pdb_options to start a Pluggable Database to which you are connected.
Only use upgrade_options to start a Database for upgrade or downgrade.
If neither READ WRITE
nor READ ONLY
is specified, a PDB will be opened in READ ONLY
if a CDB to which it belongs is used as a physical standby database, otherwise the PDB will be opened READ WRITE
.
For more information about using Consolidated and Pluggable Databases, see Creating and Configuring an Oracle Database.
Terms
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 unusual circumstances. It should not normally be used.
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.
PFILE=filename
Specifies the client parameter file to be used while starting the instance. If PFILE is not specified, the server attempts to access a default server parameter file (spfile). If the default spfile isn't found, the server then attempts to access a default pfile. The default files are 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.
QUIET
Suppresses the display of System Global Area information for the starting instance.
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.
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.
When run, upgrade scripts transform an installed version or release of an Oracle database into a later version, for example, to upgrade an Oracle9i database to Oracle Database 10g. Once the upgrade completes, the database should be shut down and restarted normally.
DOWNGRADE
Starts the database in OPEN DOWNGRADE mode and sets system initialization parameters to specific values required to enable database downgrade scripts to be run.
When run, downgrade scripts transform an installed version or release of Oracle Database into a previous version, for example, to downgrade an Oracle10g database to an Oracle9i database. Once the downgrade completes, the database should be shut down and restarted normally.
PLUGGABLE DATABASE
Use the pluggable database pdbname option to specify the plugggable database on which you want the STARTUP command to act.
Usage
You must be connected to a database as SYSDBA, SYSOPER, SYSBACKUP, or SYSDG. You cannot be connected to a shared server via a dispatcher.
STARTUP with no arguments is equivalent to STARTUP OPEN.
STARTUP OPEN RECOVER mounts and opens the database even when recovery fails.
Examples
To start a CDB 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 MOUNT
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 users with the RESTRICTED SESSION privilege, 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
To startup a PDB from a PDB container, enter the following sequence
CONNECT SYS/<password>@CDB1_PDB1 AS SYSDBA
Connected.
SHOW CON_NAME
CON_NAME
------------------------------
CDB1_PDB1
SHOW PDBS
CON_ID CON_NAME OPEN MODE RESTRICTED
---------- ------------------------------ ---------- ----------
3 CDB1_PDB1 MOUNTED
STARTUP
Pluggable Database opened.
SHOW PDBS
CON_ID CON_NAME OPEN MODE RESTRICTED
---------- ------------------------------ ---------- ----------
3 CDB1_PDB1 READ WRITE NO
To startup a PDB from root, enter the following sequence
CONNECT / AS SYSDBA
Connected.
SHOW CON_NAME
CON_NAME
------------------------------
CDB$ROOT
SHOW PDBS
CON_ID CON_NAME OPEN MODE RESTRICTED
---------- ------------------------------ ---------- ----------
2 PDB$SEED READ ONLY NO
3 CDB1_PDB1 MOUNTED
STARTUP PLUGGABLE DATABASE CDB1_PDB1
Pluggable Database opened.
SHOW PDBS
CON_ID CON_NAME OPEN MODE RESTRICTED
---------- ------------- ---------- ----------
2 PDB$SEED READ ONLY NO
3 CDB1_PDB1 READ WRITE NO