SQL Selector Operator and the Export Operator Compared - Parallel Transporter

Teradata® Parallel Transporter Reference - 20.00

Deployment
VantageCloud
VantageCore
Edition
IntelliFlex
Lake
Enterprise
VMware
Product
Parallel Transporter
Release Number
20.00
Published
October 2023
ft:locale
en-US
ft:lastEdition
2023-12-06
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dita:id
ogv1478610452101
lifecycle
latest
Product Category
Teradata Tools and Utilities
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 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 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.