Oracle Create Database Syntax
Here are several ways to
manually issue the "create database" syntax for Oracle:
EXTREMELY minimal
manual database creation
1. Set your
ORACLE_SID
export ORACLE_SID=test
export ORACLE_HOME=/path/to/oracle/home
2. Create a
minimal init.ora
# $ORACLE_HOME/dbs/init<sid>.ora
control_files =
(/path/to/control1.ctl,/path/to/control2.ctl,/path/to/control3.ctl)
undo_management = AUTO
undo_tablespace = UNDOTBS1
db_name = test
db_block_size = 8192
sga_max_size = 1073741824 #one gig
sga_target = 1073741824 #one gig
3. Create a
password file
$ORACLE_HOME/bin/orapwd file=$ORACLE_HOME/dbs/pwd<sid>.ora
password=oracle entries=5
4. Start the
instance
sqlplus / as sysdba
startup nomount
5. Create the
database
create database test
logfile group 1 ('/path/to/redo1.log') size 100M,
group 2 ('/path/to/redo2.log') size
100M,
group 3 ('/path/to/redo3.log') size
100M
character set WE8ISO8859P1
national character set utf8
datafile '/path/to/system.dbf' size 500M
autoextend on next 10M maxsize unlimited extent management local
sysaux datafile '/path/to/sysaux.dbf' size 100M
autoextend on next 10M maxsize unlimited
undo tablespace undotbs1 datafile
'/path/to/undotbs1.dbf' size 100M
default temporary tablespace temp tempfile
'/path/to/temp01.dbf' size 100M;
Note: there's some other things you can do here, like
"ARCHIVELOG" "SET TIME_ZONE =" and "USER SYS IDENTIFIED BY password"
and "USER SYSTEM IDENTIFIED BY password"
6. Run catalog and
catproc
@?/rdbms/admin/catalog.sql
@?/rdbms/admin/catproc.sql
7. Change
passwords
alter user sys identified by whatever;
alter user system identified by whatever;
OMF minimal manual create database
syntax
1. Set your
ORACLE_SID
export ORACLE_SID=test
export ORACLE_HOME=/path/to/oracle/home
2. Create a
minimal init.ora
# $ORACLE_HOME/dbs/init<sid>.ora
control_files =
(/path/to/control1.ctl,/path/to/control2.ctl,/path/to/control3.ctl)
undo_management = AUTO
db_name = test
db_block_size = 8192
sga_max_size = 1073741824 #one gig
sga_target = 1073741824 #one gig
db_create_file_dest = /path/to/datafile/location
#OMF
db_create_online_log_dest_1 = /path/to/first/redo_and_control_file/location
#OMF
db_create_online_log_dest_2 = /path/to/second/redo_and_control_file/location
#OMF
db_recovery_file_dest =
/path/to/flash/recovery/area #OMF
#note it’s a good idea to also have
background_dump_dest, user_dump_dest, and core_dump_dest here as
well
3. Create a
password file
$ORACLE_HOME/bin/orapwd file=$ORACLE_HOME/dbs/pwd<sid>.ora
password=oracle entries=5
4. Start the
instance
sqlplus / as sysdba
startup nomount
5. Create the
database
create database test
character set WE8ISO8859P1
national character set utf8
undo tablespace undotbs1
default temporary tablespace temp;
You can
even do this and it will work, the ultimate in minimalism:
create database test;
Note:
There's some other things you can do here, like "ARCHIVELOG" "SET
TIME_ZONE =" and "USER SYS IDENTIFIED BY password" and "USER SYSTEM
IDENTIFIED BY password"
Note 2:
This is so minimal because you are using Oracle Managed Files as
seen in #2
6. Run catalog and
catproc
@?/rdbms/admin/catalog.sql
@?/rdbms/admin/catproc.sql
Standard create
database syntax
After creating your init.ora
file with the appropriate parameters you can use the "create database"
command in SQL*Plus to create a database:
Make sure that your have
your $ORACLE_HOME and $ORACLE_SID set properly and that you sign-on as
SYSDBA: startup nomount;
CREATE CONTROLFILE REUSE DATABASE "OLDLSQ"
NORESETLOGS
NOARCHIVELOG
MAXLOGFILES 16
MAXLOGMEMBERS 2
MAXDATAFILES 240
MAXINSTANCES 1
MAXLOGHISTORY 113
LOGFILE
GROUP 1 ('/u03/oradata/oldlsq/log1a.dbf',
'/u03/oradata/olslsq/log1b.dbf') SIZE 30M,
GROUP 2 ('/u04/oradata/oldlsq/log2a.dbf',
'/u04/oradata/oldlsq/log2b.dbf') SIZE 30M
DATAFILE
'/u01/oradata/oldlsq/system01.dbf',
'/u01/oradata/oldlsq/mydatabase.dbf'
;
This is just an abbreviated sample of the Oracle create database
command and there are many more options:
Oracle create database documentation
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