Sessions Used for Reassigning Maps | Teradata Vantage - 17.00 - 17.05 - Sessions Used for Reassigning Maps - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - Database Administration

Product
Advanced SQL Engine
Teradata Database
Release Number
17.00
17.05
Published
June 2020
Language
English (United States)
Last Update
2021-01-22
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The stored procedures that change the table-to-map assignments run in SQL command-line tools, such as Teradata Studio or BTEQ. You will need to open these BTEQ or Teradata Studio sessions before changing the maps that tables use:
  • One session for the managing process
  • One session for each of the worker processes
For example, if you want 4 worker sessions, open 1 BTEQ window for the manager and another to create all the worker sessions. You could achieve that like this:
.SET SESSIONS 3
.LOGON machine/user,passwd
.REPEAT 3
Teradata recommends using 3 worker sessions for the Mover procedure.