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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Metadata filters identify a set of objects to be included or excluded from a Data Pump operation. All Data Pump Export and Import processing, including the reading and writing of dump files, is done on the system server selected by the specified database connect string. This means that the impdp client initiates the import request.

The dump file gets created in the server. This requires an active listener to start rxpdp listener, enter lsnrctl start that can be located using the connect descriptor. But Run 10 imp commands with this big single file each time with just the required schema. Keep the following information in mind when you are exporting and importing between different database releases:.

The version of the metadata corresponds to the database compatibility level. For example, if a table is inside the transportable set but its index is not, a failure is returned and the import operation is terminated. If no mode is specified, then Iimpdp attempts to load the entire dump file set in the mode in which the export operation was run. If the data needs to be loaded into the table, the indexes must be either dropped expfp reenabled. In the following example, the dashes indicate that a comment follows, and the hr schema name is shown, but not the password.

Accessing Data Over a Database Link When you perform an export over a database link, the data from the source database instance is written to dump files on the connected database instance. Hi Tom, I want to cleanup a database for a full import. You must have Read access to the directory used for the dump file set and Write access to the directory used to create the log and SQL files.


Nonprivileged users have neither. The available modes are as follows: This allows DBAs and other operations personnel to monitor jobs from multiple locations. Legal values for this parameter are as follows: The estimate that is generated can be used to determine a percentage complete throughout the execution of the import job.

However, different source schemas can map to the same target schema. Above my table is dept which I want to import. The use of parameter files is recommended if you are using parameters whose values require quotation marks.

If a dump file does not exist, the operation stops incrementing the substitution variable for the dump file specification that was in error. Oracle recommends that you place EXCLUDE statements in a parameter file to avoid having to use operating system-specific escape characters on the command line.

At import time there is no option to perform interim commits during the restoration of a partition. Instead, extents are reallocated according to storage parameters for the target table. Therefore, you cannot explicitly give a Data Pump job the same name as a preexisting table or view. In full import mode, the entire content of the source dump file set or another database is loaded into the target database. I ran utltp to compile all the sys objects.

Exporting and Importing Between Different Database Releases

Data Pump jobs use a master table, a master process, and worker processes to perform the work and keep track of progress.

Oracle Database Sample Schemas.

Export and import nonschema-based objects such as tablespace and schema definitions, system privilege expddp, resource plans, and so forth. The ability to restart Data Pump jobs. This command is valid only in the Enterprise Edition.

The dump file set is made up of one or more disk files that contain table data, database object metadata, and control information. The mapping may not be percent complete, because there are certain schema references that Import is not capable of finding.


The class of an object is called its object type. The estimate value for import operations is exact. XML objects are not exported from the source database. See Chapter 19, “Original Export and Import” for information about situations in which you should still use the original Export and Import utilities.

Otherwise, the job will fail. 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. In addition, the source database can be a read-only database. If you are using the Data Pump API, the restriction on attaching to only one job at a time does not apply.

Someone “handed me over” a full export done by another party. This way I do single export but 10 imports Thanx. Therefore, a directory object name is neither required nor appropriate. I would get the following error if I use 11g client to export, one internet post suggests to use 12 client and export was successful: The table has encrypted columns The table into which data is being imported is a pre-existing table and at least one of the following conditions exists: The search continues until the dump file containing the master table is located.

I’m Oracle noob, and my intention is to transfer all data and metadata from one schema to another schema within an Oracle database.


Export builds and maintains the master table for the duration of the job. Commands Available in Import’s Interactive-Command Mode In interactive-command mode, the current job continues running, but logging imppdp the terminal is stopped and the Import prompt is displayed. It represents the percentage multiplier used to alter extent allocations and the size of data files.

To obtain a downward compatible dump file with Data Pump Export: What imdp should I leave in the database?