Datapump Utility

8/2/2019 Datapump Utility

1/28

DOCUMENT PREPARED BY AMEY KULKARNI Page 1

DATAPUMP UTILITY

INTRODUCTION:

The Data Pump Utility runs on the Server Side. Oracle Data Pump technology enablesvery high-speed movement of data and metadata from one database to another.Dump files

generated by the new data pump export utility are not compatible with dump files generated by

the original export utility. Therefore, files generated by the original Export (exp) utility cannot be

imported with the Data Pump Import(impdp) utility.

BENEFITS OF DATA PUMP UTILITY

1) The ability to restart Data Pump Jobs

2) The ability to detach from and reattach to long running jobs without affecting the job

itself.

3) Support for filtering the metadata that is exported and imported based upon objects and

object types.

4) Data Archival

5) Upgrading to new releases.

6) Backing up Oracle Databaes

7) Moving Between from One Datbase to another database.

DATA PUMP EXPORT

With the help of expdp utility of DATAPUMP, We can take export(Logiacal Backup) of

Database. This is similar utility like our old exp utility of previous oracle databases.

There are various modes to take export using Expdp utility.

1) Full Database Export

2) Full Schema Export3) Particualar Table Export

4) Tablespace export

5) Using query option export.


2/28


HOW TO START DATAPUMP?

1) First Login as sysdba user to sql*plus.

Then go to ORACLE installed drive from MY computer. Create Physically create directory. GiveNamed DATA.


3/28


Now Again Connect to SQL*PLUS. Create a directory using SQL*PLUS. And give read,write grants to

public.

EXPDP Utiltiy of DATAPUMP


4/28


With the Help of this utility we can take Logical Backup. Its more faster than previous

exp utility.

Full Export of Database using DATAPUMP.

We can take full database export using Datapump. The Detail step are as Below:

1) Click on Start Menu - go to Run Menu Type cmd click on ok Button. Now Dos

Prompt opened.

2) Now go to our DATA DIRECTORY where we store our Backup.

Now We Want to Perform Full Database Backup - using system or sys user.


5/28


Command:

Expdp system/x@orcl directory=DATA dumpfile=full_db.dmp logfile=full_db.log

exclude=grants,statistics full=y job_name=full_db (Press Enter Key)

Parameter is: full=y

Our full Export Started Successfully.


6/28



7/28


Now our Full export runs successfully.

SCHEMA LEVEL EXPORT

If you Want any specific Users Objects Backup, then you can used Schema Level Export utility of Expdp.

Parameter is: schemas=


8/28


Command is:

Expdp system/x@orcl directory=DATA dumpfile=scott_schema_bkp.dmp logfile=scott_schema_bkp.log

exclude=grants,statistics schemas=scott


9/28


Now our Schema Export Runs successfully.

TABLE LEVEL EXPORT

If you Want Specific tables of particular schema, then Used Table Level Export Mode using DATA PUMP

UTILITY.

Parameter is : tables=


10/28


Command is:

Expdp hr/hr@orcl directory=DATA dumpfile=sp_tab.dmp logfile=sp_tab.log exclude=grants,statistics

tables=regions,jobs

Now our Table Level Backup successful.


11/28


Multiple Tables Backup using par file Option in DATAPUMP

If you want specific tables backup more than 2 tables then with the help of parfile option in

datapump , We can take tables backup more than once.

Steps to create a parfile in Windows:

1) Create a text file, using Notepad.

2) Specify tables= separated by Comma operator of that particular schemas.

3) Save This File in our DATA DIRECTORY.


12/28


Command is:

Expdp hr/hr@orcl directory=DATA dumpfile=parfiledemo.dmp logfile=parfiledemo.log parfile=parfile.txt

exclude=grants,statistics

Parameter is: parfile=


13/28


Our Backup Successful Now.

Tablespace Level Backup

If you Want any particular tablespace backup then, with the help of the parameter of datapump, you

can take Logical backup.


14/28


First Identify the tablespace that you want to take backup in datapump.

(Press Enter Key)

Parameter Used. Tablespaces=


15/28


STRUCTURAL LEVEL BACKUP

If you Want any particular tables Structure, then With the Help of this Option, We can take only

structure Backup.

Command is:

Expdp hr/hr@orcl directory=DATA dumpfile=struemp.dmp logfile=struemp.log exclude=grants,statisticscontent=METADATA_ONLY tables=jobs

Parameter is:

1) Content=METADATA_ONLY(always specify this Parameter)

2) Tables=< specify table name that you that tables structure)


16/28


Now our structure Backup runs successfully.


17/28


QUERY LEVEL EXPORT BACKUP

If you Want Particular Table Specify data, Then you can used Query Option of DataPump.

PARAMETER is:

1) Query=

2) TABLES=

Now our Backup Successful.


18/28


HELP of expdp

If you Want Help of expdp then specify expdp help=y you will get all options of expdp utility.


19/28


IMPORT UTILITY OF DATAPUMP

With the Help of of IMPDP utility we can restore logical Backup from one database toanother, across platforms between different operating systems.

FULL IMPORT OF DATABASE : We can Restore the data to demo user.

Command is:

Impdp system/x@orcl directory=DATA dumpfile=FULL_DB.DMP logfile=imp_FULL_DB.log

remap_schema=system:demo table_exists_action=append


20/28


Schema level Import

With this option we can restore the schema from one schema to another.


21/28


Our Import complets successfully.

SPECIFIC TABLES IMPORT


22/28


Command is:

Impdp system/x@orcl directory=DATA dumpfile=SP_TAB.DMP logfile=imp_SP_TAB.log

remap_schema=hr:hr1 (PRESS ENTER KEY)

Or

Impdp system/x@orcl directory=DATA dumpfile=SP_TAB.DMP logfile=imp_sp_tab.log

tables=jobs,regions (Press Enter Key)

PAR FILE IMPORT

With the Help of Par File, We can restored Multiple tables.


23/28


Our Import Runs successfully.

Command is:

Impdp system/x@orcl dumpfile=PARFILEDEMO.DMP directory=DATA logfile=impparfile.log

remap_schema=hr:hr1

Or

Impdp hr/hr@orcl dumpfile=PARFILEDEMO.DMP directory=DATA logfile=impparfile.log

(press enter key)

QUERY LEVEL IMPORT

With the Help of this Mode ,we can restore specific tables.


24/28


Command is:

Impdp system/x@orcl directory=DATA dumpfile=QUERYDEMO.DMP logfile=impquerydemo.log

remap_schema=hr:demo

STRUCTURE TABLE IMPORT : We can restored the only Structure of that Tables from one schema to

another.


25/28


TABLESPACE LEVEL IMPORT


26/28


Remap_tablespace option, we can import our tablespace from one schema to another or from

one database to another.

Command is:

Impdp system/x@orcl directory=DATA dumpfile=TABLESPACEDEMO.DMP

LOGFILE=imptablespacedemo.log remap_tablespace=users:demo table_exists_action=truncate

Help of Impdp

If you want any help of impdp then simply type impdp help=y command. Help displayed on your

screen.


27/28



28/28


How to Kill the Job?

Type ctrl+c key then at command prompt type kill_job(Press Enter key) type yes to kill the

job.

Version Parameter of Data Pump Utility.

With the Help of Version Parameter, You can take logical backup across different Oracle

Versions;

Expdp Utility from Oracle 10g to 11g

There is No need to specify version parameter in expdp command while exporting from 10g

to11gr2 releases

Impdp Utility from Oracle 11gr2 to 10g

When we take export from 11gr2 version, and We Want to import that Export to 10g Version

that time, You Must specify version parameter.

Important Views of DATAPUMP

1) DBA_DATAPUMP_JOBS

2) USER_DATAPUMP_JOBS

3) DBA_DIRECTORIES.

Documents

Datapump Utility