16.10 - SQL Selector Operator and the Export Operator Compared - Parallel Transporter

Teradata Parallel Transporter Reference

Product
Parallel Transporter
Release Number
16.10
Published
July 2017
Content Type
Programming Reference
Publication ID
B035-2436-077K
Language
English (United States)

The main differences between the SQL Selector operator and the Export operator are seen in their performance and feature sets.

  • The Export operator allows multiple sessions and multiple instances to extract data from the Teradata Database. When exporting a large number of rows, it is usually better to use the Export operator.
  • The SQL Selector operator only allows one session and one instance to extract rows from the Teradata Database. When exporting a small number of rows, the SQL Selector operator usually performs better than the Export operator.

    The SQL Selector operator support of a single session and a single instance is similar to a BTEQ Export operation.