See "Filtering During Export Operations". This is done using data filters and metadata filters, which are specified through Export parameters. See "Default Locations for Dump, Log, and SQL Files" for more information about directory objects.ĭata Pump Export enables you to specify that a job should move a subset of the data and metadata, as determined by the export mode. During an import operation, the Data Pump Import utility uses these files to locate each database object in the dump file set.īecause the dump files are written by the server, rather than by the client, the database administrator (DBA) must create directory objects that define the server locations to which files are written. The files are written in a proprietary, binary format. The dump file set is made up of one or more disk files that contain table data, database object metadata, and control information. The dump file set can be imported on the same system or it can be moved to another system and loaded there. The dump file set can be imported only by the Data Pump Import utility. Data Pump Export (hereinafter referred to as Export for ease of reading) is a utility for unloading data and metadata into a set of operating system files called a dump file set.
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