创建数据库 - with CREATE DATABASE STATEMENT
1. Set SID
in bash
ORACLE_SID=ocm
export ORACLE_SID
2.
Set Env Vars
ORACLE_SID and ORACLE_HOME
3. Choose a Database
Administrator Authentication Method
password file
OS auth
4. Create
Init Parameter File
$ORACLE_HOME/dbs/initocm.ora
6. Connect to the
Instance
Passowrd file auth
$ sqlplus /nolog
SQL> CONNECT SYS AS
SYSDBA
OS auth
$ sqlplus /nolog
SQL> CONNECT / AS
SYSDBA
7. Create SPFile
CREATE SPFILE FROM PFILE;
8. start
instance in nomount
SQL>START NOMOUNT
9. Issue CREATE DATABASE
STATEMENT
(1)Please create the ocm directory in $ORACLE_BASE/oradata/
folder before run below commands
(2)make sure the db_name and undo_tablespace
value in the pfile match what in the create database statement
CREATE
DATABASE ocm
USER SYS IDENTIFIED BY pehz123Q
USER SYSTEM IDENTIFIED BY
pehz123Q
LOGFILE GROUP 1
(‘/opt/oracle/oradata/ocm/redo01a.log‘,‘/opt/oracle/oradata/ocm/redo01b.log‘)
SIZE 100M BLOCKSIZE 512,
GROUP 2
(‘/opt/oracle/oradata/ocm/redo02a.log‘,‘/opt/oracle/oradata/ocm/redo02b.log‘)
SIZE 100M BLOCKSIZE 512,
GROUP 3
(‘/opt/oracle/oradata/ocm/redo03a.log‘,‘/opt/oracle/oradata/ocm/redo03b.log‘)
SIZE 100M BLOCKSIZE 512
MAXLOGFILES 5
MAXLOGMEMBERS 5
MAXLOGHISTORY
1
MAXDATAFILES 100
CHARACTER SET AL32UTF8
NATIONAL CHARACTER SET
AL16UTF16
EXTENT MANAGEMENT LOCAL
DATAFILE
‘/opt/oracle/oradata/ocm/system01.dbf‘ SIZE 325M REUSE
SYSAUX DATAFILE
‘/opt/oracle/oradata/ocm/sysaux01.dbf‘ SIZE 325M REUSE
DEFAULT TABLESPACE
users
DATAFILE ‘/opt/oracle/oradata/ocm/users01.dbf‘
SIZE 500M REUSE
AUTOEXTEND ON MAXSIZE UNLIMITED
DEFAULT TEMPORARY TABLESPACE
tempts1
TEMPFILE ‘/opt/oracle/oradata/ocm/temp01.dbf‘
SIZE 20M
REUSE
UNDO TABLESPACE ocm_UNDOTBS1
DATAFILE
‘/opt/oracle/oradata/ocm/undotbs01.dbf‘
SIZE 200M REUSE AUTOEXTEND ON MAXSIZE
UNLIMITED;
(2) SAMPLE 2, Use OMF
SET
DB_CREATE_FILE_DEST=‘/u01/app/oracle/oradata‘ in
SPFILE
DB_CREATE_FILE_DEST
DB_CREATE_ONLINE_LOG_DEST_n
DB_RECOVERY_FILE_DEST
CREATE
DATABASE mynewdb
USER SYS IDENTIFIED BY sys_password
USER SYSTEM
IDENTIFIED BY system_password
EXTENT MANAGEMENT LOCAL
DEFAULT TEMPORARY
TABLESPACE temp
UNDO TABLESPACE undotbs1
DEFAULT TABLESPACE
users;
10. Create additional TABLESPACEs
CREATE TABLESPACE
apps_tbs LOGGING
DATAFILE ‘/opt/oracle/oradata/ocm/apps01.dbf‘
SIZE 500M
REUSE AUTOEXTEND ON NEXT 1280K MAXSIZE UNLIMITED
EXTENT MANAGEMENT
LOCAL;
-- create a tablespace for indexes, separate from user tablespace
(optional)
CREATE TABLESPACE indx_tbs LOGGING
DATAFILE
‘/opt/oracle/oradata/ocm/indx01.dbf‘
SIZE 100M REUSE AUTOEXTEND ON NEXT 1280K
MAXSIZE UNLIMITED
EXTENT MANAGEMENT LOCAL;
11.Run Scripts to Build
Data Dictionary Views
Login as
SYSDBA
@?/rdbms/admin/catalog.sql
@?/rdbms/admin/catproc.sql
Login
as SYSTEM
@?/sqlplus/admin/pupbld.sql
12. Install other options in
Oracle Database Reference online book
13. Back Up the Database.
14. Enable
Automatic Instance
Startup
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What
CREATE DATABASE DO?
The actual operations performed depend on the clauses
that you specify in the CREATE DATABASE statement and the initialization
parameters that you have set.
Basicly it do the following things
Creates
the data files for the database
Creates the control files for the
database
Creates the redo log files for the database and establishes the
ARCHIVELOG mode
Creates the SYSTEM tablespace
Creates the SYSAUX
tablespace
Creates the data dictionary
Sets the character set that stores
data in the database
Sets the database time zone
Mounts and opens the
database for use