使用CREATE DATABASE创建数据库CDBDEV, Container Database。

在oracle用户下创建脚本
[oracle@ol8-19 ~]$ vi CrCDBDEV.sql

输入以下内容：
CREATE DATABASE cdbdev
USER sys identified by oracle
USER system identified by oracle
EXTENT MANAGEMENT LOCAL
DEFAULT TEMPORARY TABLESPACE temp
DEFAULT TABLESPACE users
UNDO TABLESPACE undotbs1
ENABLE PLUGGABLE DATABASE;

[oracle@ol8-19 ~]$ . oraenv
ORACLE_SID = [CDBDEV] ? CDBDEV
ORACLE_HOME = [/home/oracle] ? /u01/app/oracle/product/19.0.0/dbhome_1
The Oracle base remains unchanged with value /u01/app/oracle

[oracle@ol8-19 ~]$ cd $ORACLE_HOME/dbs
[oracle@ol8-19 dbs]$ cp init.ora initCDBDEV.ora
[oracle@ol8-19 dbs]$ vi initCDBDEV.ora

修改数据如下：
DB_CREATE_FILE_DEST='/u01/app/oracle/oradata'
ENABLE_PLUGGABLE_DATABASE=true
db_name='CDBDEV'
memory_target=1G
processes = 150
audit_file_dest='/u01/app/oracle/admin/CDBDEV/adump'
audit_trail ='db'
db_block_size=8192
db_domain=''
db_recovery_file_dest='/u01/app/oracle/fast_recovery_area'
db_recovery_file_dest_size=2G
diagnostic_dest='/u01/app/oracle'
dispatchers='(PROTOCOL=TCP) (SERVICE=CDBDEVXDB)'
open_cursors=300
remote_login_passwordfile='EXCLUSIVE'
undo_tablespace='UNDOTBS1'

You may want to ensure that control files are created on separate physical

devices

control_files = ('/u01/app/oracle/oradata/ora_control01.ctl', '/u01/app/oracle/fast_recovery_area/ora_control02.ctl')
compatible ='19.0.0'

确认initCDBDEV.ora中，变量中的路径都存在，不存在需要使用mkdir -p 来创建。
[oracle@ol8-19 dbs]$ mkdir -p /u01/app/oracle/admin/CDBDEV/adump
[oracle@ol8-19 dbs]$ mkdir -p /u01/app/oracle/fast_recovery_area

sqlplus / as sysdba
shutdown immediate;
startup nomount

创建数据库
@/home/oracle/CrCDBDEV.sql

创建数据字典 3mins
@$ORACLE_HOME/rdbms/admin/catalog.sql

创建存储过程 30mins
@$ORACLE_HOME/rdbms/admin/catalog.sql

创建后，修改/etc/oratab
在末尾加入以下内容：
CDBDEV:/u01/app/oracle/product/19.0.0/dbhome_1:N

SQL> select name, cdb from v$database;

NAME      CDB
--------- ---
CDBDEV    YES


SQL> select name from v$datafile;

NAME
----------------------------------------------------------------------------------------------------
/u01/app/oracle/oradata/CDBDEV/datafile/o1_mf_system_kvbshwrc_.dbf
/u01/app/oracle/oradata/CDBDEV/F16FAB71608966ECE0538388A8C0A155/datafile/o1_mf_system_kvbshx3m_.dbf
/u01/app/oracle/oradata/CDBDEV/datafile/o1_mf_sysaux_kvbshyml_.dbf
/u01/app/oracle/oradata/CDBDEV/F16FAB71608966ECE0538388A8C0A155/datafile/o1_mf_sysaux_kvbshysz_.dbf
/u01/app/oracle/oradata/CDBDEV/datafile/o1_mf_undotbs1_kvbshz7j_.dbf
/u01/app/oracle/oradata/CDBDEV/datafile/o1_mf_users_kvbshz9t_.dbf
/u01/app/oracle/oradata/CDBDEV/F16FAB71608966ECE0538388A8C0A155/datafile/o1_mf_users_kvbshzj7_.dbf


SQL> select tablespace_name, contents from dba_tablespaces;

TABLESPACE_NAME                CONTENTS
------------------------------ ---------------------
SYSTEM                         PERMANENT
SYSAUX                         PERMANENT
UNDOTBS1                       UNDO
TEMP                           TEMPORARY
USERS                          PERMANENT

CREATE TABLE创建的数据库默认不带EM EXPRESS.

SQL> select dbms_xdb_config.gethttpsport() from dual;

DBMS_XDB_CONFIG.GETHTTPSPORT()
------------------------------
                             0