目录
Exporting from a Non-CDB and Importing into a PDB
我們要記住一点：如果是全库导出导入的话，目标数据库没有的表空间我们要事先创建：不然就会导入失败。
全库数据传输我们最好不要用数据泵进行传输，因为会遇到各种各样的问题，如果只是导出表空间，导出一张表，是可以的。
1.共享池太小会导致导入失败，可以通过告警日志获得信息。
2、 如果在 profile 中设置了资源限制，也会导致导入失败，比如 SESSIONS_PER_USER 设置的太小。
3、 如果源数据库初始时用的是 OMF 管理，那么目标数据库也应该是 OMF 管理， 如果不是，则要创建和源表空间路径一样的路径。如果是要启用OMF管理，要设置DB_CREATE_FILE_DEST参数，OMF默认数据文件大小是100m，AUTOEXTEND 为UNLIMITED。
4、 在导入过程中，会尝试创建跟源数据库表空间名字一样的 undo、temp、users 等表空间，如果已经存在，则忽略。
5、 如果源数据库有创建非标准块的表空间，则要提前分配非标准块的数据缓冲区， 否则在建立表空间时会报错。
6、 如果是全庫導出導入（會導出所有的對象）目标数据库最好是新建的空的数据库。
1.在11gnon-cdb数据库创建测试用户
sql
SQL> SELECT file_name, tablespace_name FROM dba_data_files;------这里可以看出11g数据库比pdb多了两个表空间
SQL> set linesize 200
SQL> /
FILE_NAME TABLESPACE_NAME
-------------------------------------------------- ------------------------------
/u01/app/oracle/oradata/cai/users01.dbf USERS
/u01/app/oracle/oradata/cai/undotbs01.dbf UNDOTBS1
/u01/app/oracle/oradata/cai/sysaux01.dbf SYSAUX
/u01/app/oracle/oradata/cai/system01.dbf SYSTEM
/u01/app/oracle/oradata/cai/example01.dbf EXAMPLE
SQL> grant dba,resource,connect to CC;
Grant succeeded.
SQL> select * from dba_sys_privs where grantee='CC';
GRANTEE PRIVILEGE ADM
------------------------------ ---------------------------------------- ---
CC UNLIMITED TABLESPACE NO
SQL> create directory dump_dir as '/home/oracle/scripts';
Directory created.
SQL> grant read,write,execute on directory dump_dir to system;
Grant succeeded.2.在19cCDB容器数据库新建pdb2
sql
SQL> show pdbs;
CON_ID CON_NAME OPEN MODE RESTRICTED
---------- ------------------------------ ---------- ----------
2 PDB$SEED READ ONLY NO
3 PDB1 MOUNTED
SQL> create pluggable database pdb2 admin user admin1 identified by oracle
2 FILE_NAME_CONVERT=('pdbseed','pdb2');
Pluggable database created.
SQL> show pdbs;
CON_ID CON_NAME OPEN MODE RESTRICTED
---------- ------------------------------ ---------- ----------
2 PDB$SEED READ ONLY NO
3 PDB1 MOUNTED
4 PDB2 MOUNTED
SQL> alter session set container=pdb2;
Session altered.
SQL> startup
Pluggable Database opened.
SQL> show pdbs;
CON_ID CON_NAME OPEN MODE RESTRICTED
---------- ------------------------------ ---------- ----------
4 PDB2 READ WRITE NO
SQL> select tablespace_name,block_size,status,logging,extent_management,segment_space_management from dba_tablespaces;
TABLESPACE_NAME BLOCK_SIZE STATUS LOGGING EXTENT_MAN SEGMEN
------------------------------ ---------- --------- --------- ---------- ------
SYSTEM 8192 ONLINE LOGGING LOCAL MANUAL
SYSAUX 8192 ONLINE LOGGING LOCAL AUTO
UNDOTBS1 8192 ONLINE LOGGING LOCAL MANUAL
TEMP 8192 ONLINE NOLOGGING LOCAL MANUAL
SQL> select tablespace_name,file_name from dba_temp_files;
TABLESPACE_NAME
------------------------------
FILE_NAME
--------------------------------------------------------------------------------
TEMP
/u01/app/oracle/oradata/CDB/pdb2/temp012024-01-10_16-24-28-422-PM.dbf
SQL> create directory dump_dir as '/home/oracle/scripts';
Directory created.
SQL> grant read,write,execute on directory dump_dir to system;
Grant succeeded.
SQL> show parameter create
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
create_bitmap_area_size integer 8388608
create_stored_outlines string
db_create_file_dest string
db_create_online_log_dest_1 string
db_create_online_log_dest_2 string
db_create_online_log_dest_3 string
db_create_online_log_dest_4 string
db_create_online_log_dest_5 string
SQL> alter system set db_create_file_dest='/u01/app/oracle/oradata/CDB/pdb2';
System altered.
SQL> create tablespace users;
Tablespace created.
SQL> create tablespace example;
Tablespace created.3.执行命令导出
bash
[oracle@11g scripts]$ export NLS_LANG=AMERICAN_AMERICA.AL32UTF8
[oracle@11g scripts]$ expdp system/oracle full=y dumpfile=jie.dmp directory=dump_dir
[oracle@11g scripts]$ scp jie.dmp 19c:/home/oracle/scripts
[oracle@11g scripts]$ ll -ls
total 209916
116 -rw-r--r-- 1 oracle oinstall 116052 Jan 12 14:12 export.log
209800 -rw-r----- 1 oracle oinstall 214835200 Jan 12 14:12 jie.dmp4.执行命令导入
bash
[oracle@19c ~]$ export NLS_LANG=AMERICAN_AMERICA.AL32UTF8
[oracle@19c ~]$ impdp system/oracle@pdb2 full=y dumpfile=jie.dmp directory=dump_dir导入执行成功后查看pdb2是否有CC用户，如下显示导入成功
sql
SQL> show pdbs;
CON_ID CON_NAME OPEN MODE RESTRICTED
---------- ------------------------------ ---------- ----------
4 PDB2 READ WRITE NO
SQL>
SQL>
SQL>
SQL>
SQL> SELECT file_name, tablespace_name FROM dba_data_files;
FILE_NAME TABLESPACE_NAME
-------------------------------------------------- ------------------------------
/u01/app/oracle/oradata/CDB/pdb2/undotbs01.dbf UNDOTBS1
/u01/app/oracle/oradata/CDB/pdb2/sysaux01.dbf SYSAUX
/u01/app/oracle/oradata/CDB/pdb2/system01.dbf SYSTEM
/u01/app/oracle/oradata/CDB/pdb2/CDB/0EA407C05EF40 USERS
9A6E06302F4A8C0589B/datafile/o1_mf_users_lszzp7rj_
.dbf
/u01/app/oracle/oradata/CDB/pdb2/CDB/0EA407C05EF40 EXAMPLE
9A6E06302F4A8C0589B/datafile/o1_mf_example_lt00g0o
4_.dbf
SQL> select username from all_users;
USERNAME
--------------------------------------------------------------------------------------------------------------------------------
SYS
AUDSYS
SYSTEM
SYSBACKUP
SYSDG
SYSKM
SYSRAC
OUTLN
DBSFWUSER
XS$NULL
GSMADMIN_INTERNAL
USERNAME
--------------------------------------------------------------------------------------------------------------------------------
GSMUSER
DIP
REMOTE_SCHEDULER_AGENT
DBSNMP
ORACLE_OCM
SYS$UMF
APPQOSSYS
GSMCATUSER
GGSYS
XDB
ANONYMOUS
USERNAME
--------------------------------------------------------------------------------------------------------------------------------
WMSYS
OJVMSYS
CTXSYS
ORDSYS
ORDDATA
ORDPLUGINS
SI_INFORMTN_SCHEMA
MDSYS
OLAPSYS
MDDATA
DVSYS
USERNAME
--------------------------------------------------------------------------------------------------------------------------------
LBACSYS
DVF
ADMIN1
APEX_PUBLIC_USER
SYSMAN
MGMT_VIEW
FLOWS_FILES
APEX_030200
OWBSYS
OWBSYS_AUDIT
SPATIAL_WFS_ADMIN_USR
USERNAME
--------------------------------------------------------------------------------------------------------------------------------
SPATIAL_CSW_ADMIN_USR
SCOTT
HR
OE
IX
SH
PM
BI
CC
53 rows selected.