How Does Data Pump Move Data?

For information about the methods Data Pump uses to move data in and out of databases, and when each of the methods is used, see the following topics:

Using Data File Copying to Move Data
Using Direct Path to Move Data
Using External Tables to Move Data
Using Conventional Path to Move Data
Using Network Link Import to Move Data

Note:

Data Pump does not load tables with disabled unique indexes. To load data into the table, the indexes must be either dropped or reenabled.