Unsupported Data Types

An external table supports a subset of all possible data types for columns. In particular, it supports character data types (except LONG), the RAW data type, all numeric data types, and all date, timestamp, and interval data types.

This section describes how you can use the ORACLE_DATAPUMP access driver to unload and reload data for some of the unsupported data types, specifically:

• BFILE

• LONG and LONG RAW

• Final object types

• Tables of final object types