Data Pump Import (invoked with the impdp command) is a new utility as of Oracle This parameter is valid only in the Enterprise Edition of Oracle Database 10g. . expdp SYSTEM/password SCHEMAS=hr DIRECTORY=dpump_dir1. Either run IMP once OR export the 10 schemas to 10 separate files, and imp the 10 2) yes, that is what it is programmed to do (impdp – datapump – is more. For example, if one database is Oracle Database 12c, then the other database must be 12c, 11g, or 10g. Note that Data Pump checks only the major version.

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Enables you to specify command-line parameters in oraxle parameter file. You can pre-create tablespaces, users, and tables in the new database to improve space usage by changing storage parameters. The target database must be at the expxp or higher release level as the source database.

That method was subject to many restrictions including the number of tablespace subclauses which sometimes resulted in the failure of some DDL commands. This chapter discusses the following topics: Most Data Pump export and import operations occur on the Oracle database server. The failing statement is skipped and the job is restarted from the next work item.

If a directory object is specified as part of the file specification, then the location specified by that directory object is used. Data Pump Import writes the log file using the database character set. This directory object is automatically created at database creation or when the database dictionary is upgraded.

After the import, check the import log file for information about the imports of specific objects that completed successfully.

One of the reasons for this is that a manually created external table unloads only data no metadatawhereas Data Pump maintains both data and metadata information for all objects involved. This way I do single export but 10 imports Thanx. If no object type is specified then the transform applies to all valid object types. In some cases, because of feature redesign, the original Import parameter is no longer needed so there is no Data Pump command to compare it to.


The default is exprp user’s current directory.

At import time there is no option oacle perform interim commits during the restoration of a partition. Increase or decrease the number of active worker processes for the current job.

Exporting and Importing Between Different Database Releases

If the database does not already have a database link, you or your DBA must create one. OIDs are no longer used for type validation. For example, a trigger defined on a table within the importing user’s schema, but residing in another user’s schema, is oracpe imported. Wherever possible, the examples use dump files that are generated when you run the Export examples in Chapter 2. Tom, When we do full import to newly created DB.

In general however, Data Pump import cannot read dump file sets created by an Oracle release that is newer than the current release unless the VERSION parameter is explicitly specified. A separate directory object, which points to an operating system directory path, should be used for the log file. Otherwise, the job will fail.

For example, the following Export commands would create the dump file sets with the necessary metadata to create a schema, because the user SYSTEM has the necessary privileges:. If a job stops before it starts running that is, it is in the Defining statethe master table is dropped. Use of Quotation Marks On the Data Pump Command Line Some operating systems require that quotation marks on the command line be preceded by an escape character, such as the backslash.

Overview of Oracle Data Pump

Data Pump Import can only remap tablespaces for transportable imports in databases where the compatibility level is Data Pump Import enables you to specify whether a job should move a subset of the data and metadata from the dump file set or the source database in the case of a network importas determined by the import mode.


Original Export and Import support the full set of Oracle database release 9. The Oracle database has provided an external tables capability since Oracle9 i that allows reading of data sources external to the database.

How to transfer data using expdp and impdp commands? If a Data Pump Export or Import job encounters an unrecoverable error, then the job can be restarted after the condition inducing the failure is corrected.


In general, the impfp of parallelism should be set to more than twice the number of CPUs on an instance. The use of wildcards with table names is also supported. Oracle Database 11g Redux. My version is 11G. Data Pump Import interactive-command mode is different from the interactive mode for original Import, in which Import prompted you for input.

Purpose Tells Import what to do if the table it is trying to create already exists. Transforming Metadata During a Job When you are moving data from one database to another, it is often useful to perform transformations on the metadata for remapping storage between tablespaces or redefining the owner of a particular set of objects. The reason for not using expdp and impdp is that its a server technology.

Data Pump Import

What about import full into a 9. If a table has compression enabled, Data Pump Import attempts to compress the data being loaded. The characteristics of the import operation are determined by the import parameters you specify. For example, tables containing new datatypes that are not supported in the specified version will not be imported.