Thứ Hai, 19 tháng 1, 2026

Sử dụng Content Parameter trong Oracle Data Pump (expdp)

Lưu ý: Thêm  tùy chọn <content=DATA_ONLY >  hoặc  <content=METADATA_ONLY >  vào lệnh expdp để chỉ xuất dữ liệu và siêu dữ liệu theo yêu cầu. Nếu bạn không chỉ định một trong hai từ khóa này, mặc định sẽ là ALL, tức là nó sẽ xuất cả  DATA và METADATA.

DATA_ONLY - To export only DATA, not Metadata.
METADATA_ONLY - To export only METADATA , not DATA..
ALL - To export both DATA and METADATA, both.

#Execute below query to get the all objects of TEST schema.

SQL> set lines 300 pages 3000
SQL> col OBJECT_NAME for a20
SQL> col OBJECT_TYPE for a20
SQL> select owner,object_name,object_type from dba_objects where owner='TEST';

OWNER          OBJECT_NAME          OBJECT_TYPE
-------------- -------------------- --------------------
TEST           EMP                  TABLE
TEST           DEPT                 TABLE
TEST           VW_TEST              VIEW

#Execute below command to export only data, not metadata. This is required in case you already have metadata imported and you don't want to import it again.

C:\Windows\System32>expdp directory=DIR_TEST schemas=test dumpfile=schema.dmp logfile=schema.log content=DATA_ONLY

Export: Release 19.0.0.0.0 - Production on Fri Mar 15 20:00:42 2024
Version 19.16.0.0.0

Copyright (c) 1982, 2022, Oracle and/or its affiliates.  All rights reserved.

Username: test
Password:

Connected to: Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
Starting "TEST"."SYS_EXPORT_SCHEMA_01":  test/******** directory=DIR_TEST schemas=test dumpfile=schema.dmp logfile=schema.log content=DATA_ONLY
Processing object type SCHEMA_EXPORT/TABLE/TABLE_DATA
. . exported "TEST"."DEPT"                               6.531 KB       5 rows
. . exported "TEST"."EMP"                                6.531 KB       5 rows
Master table "TEST"."SYS_EXPORT_SCHEMA_01" successfully loaded/unloaded
******************************************************************************
Dump file set for TEST.SYS_EXPORT_SCHEMA_01 is:
  C:\BACKUP\SCHEMA.DMP
Job "TEST"."SYS_EXPORT_SCHEMA_01" successfully completed at Fri Mar 15 20:00:54 2024 elapsed 0 00:00:08


#Execute below command to export only metadata, not data. This is required in case you want to import only metadata, don't want to import the data.

C:\Windows\System32>expdp directory=DIR_TEST schemas=test dumpfile=schema.dmp logfile=schema.log content=METADATA_ONLY

Export: Release 19.0.0.0.0 - Production on Fri Mar 15 20:10:37 2024
Version 19.16.0.0.0

Copyright (c) 1982, 2022, Oracle and/or its affiliates.  All rights reserved.

Username: test
Password:

Connected to: Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
Starting "TEST"."SYS_EXPORT_SCHEMA_01":  test/******** directory=DIR_TEST schemas=test dumpfile=schema.dmp logfile=schema.log content=METADATA_ONLY
Processing object type SCHEMA_EXPORT/TABLE/INDEX/STATISTICS/INDEX_STATISTICS
Processing object type SCHEMA_EXPORT/TABLE/STATISTICS/TABLE_STATISTICS
Processing object type SCHEMA_EXPORT/STATISTICS/MARKER
Processing object type SCHEMA_EXPORT/USER
Processing object type SCHEMA_EXPORT/SYSTEM_GRANT
Processing object type SCHEMA_EXPORT/ROLE_GRANT
Processing object type SCHEMA_EXPORT/DEFAULT_ROLE
Processing object type SCHEMA_EXPORT/TABLESPACE_QUOTA
Processing object type SCHEMA_EXPORT/PRE_SCHEMA/PROCACT_SCHEMA
Processing object type SCHEMA_EXPORT/TABLE/TABLE
Processing object type SCHEMA_EXPORT/TABLE/COMMENT
Processing object type SCHEMA_EXPORT/VIEW/VIEW
Processing object type SCHEMA_EXPORT/TABLE/INDEX/INDEX
Processing object type SCHEMA_EXPORT/TABLE/CONSTRAINT/CONSTRAINT
Master table "TEST"."SYS_EXPORT_SCHEMA_01" successfully loaded/unloaded
******************************************************************************
Dump file set for TEST.SYS_EXPORT_SCHEMA_01 is:
  C:\BACKUP\SCHEMA.DMP
Job "TEST"."SYS_EXPORT_SCHEMA_01" successfully completed at Fri Mar 15 20:11:36 2024 elapsed 0 00:00:55


#Execute below command to export both data as well as metadata. If you don't specify either of the option i.e. data_only or metadata_only. The default option would be ALL which will export both DATA as well METADATA.

C:\Windows\System32>expdp directory=DIR_TEST schemas=test dumpfile=schema.dmp logfile=schema.log

Export: Release 19.0.0.0.0 - Production on Fri Mar 15 20:14:12 2024
Version 19.16.0.0.0

Copyright (c) 1982, 2022, Oracle and/or its affiliates.  All rights reserved.

Username: test
Password:

Connected to: Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
Starting "TEST"."SYS_EXPORT_SCHEMA_01":  test/******** directory=DIR_TEST schemas=test dumpfile=schema.dmp logfile=schema.log
Processing object type SCHEMA_EXPORT/TABLE/TABLE_DATA
Processing object type SCHEMA_EXPORT/TABLE/INDEX/STATISTICS/INDEX_STATISTICS
Processing object type SCHEMA_EXPORT/TABLE/STATISTICS/TABLE_STATISTICS
Processing object type SCHEMA_EXPORT/STATISTICS/MARKER
Processing object type SCHEMA_EXPORT/USER
Processing object type SCHEMA_EXPORT/SYSTEM_GRANT
Processing object type SCHEMA_EXPORT/ROLE_GRANT
Processing object type SCHEMA_EXPORT/DEFAULT_ROLE
Processing object type SCHEMA_EXPORT/TABLESPACE_QUOTA
Processing object type SCHEMA_EXPORT/PRE_SCHEMA/PROCACT_SCHEMA
Processing object type SCHEMA_EXPORT/TABLE/TABLE
Processing object type SCHEMA_EXPORT/TABLE/COMMENT
Processing object type SCHEMA_EXPORT/VIEW/VIEW
Processing object type SCHEMA_EXPORT/TABLE/INDEX/INDEX
Processing object type SCHEMA_EXPORT/TABLE/CONSTRAINT/CONSTRAINT
. . exported "TEST"."DEPT"                               6.531 KB       5 rows
. . exported "TEST"."EMP"                                6.531 KB       5 rows
Master table "TEST"."SYS_EXPORT_SCHEMA_01" successfully loaded/unloaded
******************************************************************************
Dump file set for TEST.SYS_EXPORT_SCHEMA_01 is:
  C:\BACKUP\SCHEMA.DMP
Job "TEST"."SYS_EXPORT_SCHEMA_01" successfully completed at Fri Mar 15 20:14:56 2024 elapsed 0 00:00:40

OR

C:\Windows\System32>expdp directory=DIR_TEST schemas=test dumpfile=schema.dmp logfile=schema.log content=ALL

Export: Release 19.0.0.0.0 - Production on Fri Mar 15 20:19:45 2024
Version 19.16.0.0.0

Copyright (c) 1982, 2022, Oracle and/or its affiliates.  All rights reserved.

Username: test
Password:

Connected to: Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
Starting "TEST"."SYS_EXPORT_SCHEMA_01":  test/******** directory=DIR_TEST schemas=test dumpfile=schema.dmp logfile=schema.log content=ALL
Processing object type SCHEMA_EXPORT/TABLE/TABLE_DATA
Processing object type SCHEMA_EXPORT/TABLE/INDEX/STATISTICS/INDEX_STATISTICS
Processing object type SCHEMA_EXPORT/TABLE/STATISTICS/TABLE_STATISTICS
Processing object type SCHEMA_EXPORT/STATISTICS/MARKER
Processing object type SCHEMA_EXPORT/USER
Processing object type SCHEMA_EXPORT/SYSTEM_GRANT
Processing object type SCHEMA_EXPORT/ROLE_GRANT
Processing object type SCHEMA_EXPORT/DEFAULT_ROLE
Processing object type SCHEMA_EXPORT/TABLESPACE_QUOTA
Processing object type SCHEMA_EXPORT/PRE_SCHEMA/PROCACT_SCHEMA
Processing object type SCHEMA_EXPORT/TABLE/TABLE
Processing object type SCHEMA_EXPORT/TABLE/COMMENT
Processing object type SCHEMA_EXPORT/VIEW/VIEW
Processing object type SCHEMA_EXPORT/TABLE/INDEX/INDEX
Processing object type SCHEMA_EXPORT/TABLE/CONSTRAINT/CONSTRAINT
. . exported "TEST"."DEPT"                               6.531 KB       5 rows
. . exported "TEST"."EMP"                                6.531 KB       5 rows
Master table "TEST"."SYS_EXPORT_SCHEMA_01" successfully loaded/unloaded
******************************************************************************
Dump file set for TEST.SYS_EXPORT_SCHEMA_01 is:
  C:\BACKUP\SCHEMA.DMP
Job "TEST"."SYS_EXPORT_SCHEMA_01" successfully completed at Fri Mar 15 20:20:13 2024 elapsed 0 00:00:25
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