Teradata Parallel Data Pump

Chapter 3: Teradata TPump Commands
PARTITION
PARTITION
Purpose
The PARTITION command defines a collection of sessions used to transfer SQL requests to
Teradata Database. A DML command may name the partition to be used for its requests to
the database.
A default session partition may still be created using the SESSIONS and PACK parameters of
the BEGIN LOAD command.
This command works in conjunction with a DML parameter, PARTITION, which names the
session partition that a DML’s SQL will use. If the DML command does not have a
PARTITION parameter, then the default partition created using the SESSIONS and PACK
parameters of the BEGIN LOAD command will be used.
Syntax
.PARTITION partition_name SESSIONS number A
threshold
A
DATAENCRYPTION
PACK
PACKMAXIMUM
statements
OFF
ON
3021B018
where
Syntax Element
number
Description
Number of sessions to be logged on for the partition
Teradata TPump logs on and uses the number of sessions specified to
communicate requests to Teradata Database.
There is no default value for number; it must be specified. Neither is there a
maximum value, except for system-wide session limitations, which vary
among machines.
Limiting the number of sessions conserves resources on both the external
system and Teradata Database. This conservation is at the expense of a
potential decrease in throughput and increase in elapsed time.
Teradata Parallel Data Pump Reference 175