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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If changes are made to the current database after the export, then make sure those changes are propagated to the new database before making it available to users.


After the import, check the import log file for information about the imports of specific objects that completed successfully. The possible options are as follows:. For example, if the local database is version Data Pump Import cannot read dump file sets created by a database version that is newer than the current database version, unless those dump file sets were created with the version parameter set to the version of the target database.

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. You set it to the desired number of parallel processes.

The usefulness of the estimate value for export operations depends on the type of estimation requested when the operation was initiated, and it is updated as required if exceeded by the actual transfer amount. This command results in the import job looking for the expfull. For the given mode of import, all object types contained within the source and their dependents are included, except those specified in an EXCLUDE statement.


The master table controls the import job. This is done using the following Data Pump Import parameters: Table mapsas closely as possible, Data Pump Import parameters to original Import parameters.

Migrating Data Using Oracle Data Pump

Therefore, that user must have sufficient tablespace quota for its creation. See the current Oracle Database Utilities documentation for information about using the Export utility on the current database. expep

Log files and SQL files will overwrite previously existing files. For unprivileged users, objects not remapped to the current schema will not be processed.

Exporting and Importing Between Different Database Releases

If there are not enough dump files, the performance will not be optimal because multiple threads of execution will be trying to access the same dump file. The local Import client connects to the database instance identified by the connect descriptor inst1 a simple net service name, usually defined in a tnsnames. Most Data Pump export and import operations occur on the Exldp database server. Do not run impdb or expdp as sysdbaonly do that if Oracle support requests it in specific circumstances.

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 estimate value for import operations is exact. Detach all currently attached client sessions and kill the current job.

Display detailed status for the current job. Assume the following is in a parameter file, exclude. For the given mode of import, all the objects contained within the source, and all their dependent objects, are included except those specified in an EXCLUDE statement. The ability to specify the version of database objects to be moved.


The target schema must have sufficient quota in the target tablespace. To ensure a consistent export, the current database must not be available for updates during and after the export. The SQL statement to do this, which requires privileges, is:.

The value you specify for integer specifies the maximum number of threads of active execution operating on behalf of the import job. Export builds and maintains the master table for the duration of the job. Otherwise, errors may occur.

If a job terminates unexpectedly, the master table is retained. Actual command used to load the table data, just for 1 schema from original dump file, was as below: Does this statement take all the objects data and metadata from a schema and move these into a different schema?

For this reason, you may wish to compress your data after the load. Oracle Database Sample Schemas.

Data Pump Import

In New database, I have just changed the block size and increased length of some columns from existing schema. Example Network-Mode Import of Schemas. Oraccle job name becomes the name of the master table in the current user’s schema. This command is valid only in the Enterprise Edition. This command will execute a full import that will load only the metadata in the expfull.