16.20 - Job Example 8: Batch Directory Scan - Parallel Transporter

Teradata® Parallel Transporter User Guide

Product
Parallel Transporter
Release Number
16.20
Published
August 2020
Language
English (United States)
Last Update
2020-08-27
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Job Objective

Scan a directory for one or more flat files and then do high speed loading of the data into to a Teradata Database table.

If the Teradata Database table is populated, use the Update operator for the load operation.

For strategies on using this method, see Batch Directory Scan and "DataConnector Operator" in Teradata® Parallel Transporter Reference, B035-2436.

Data Flow Diagram

The following figure shows a flow diagram of the elements in Job Example 8.

Job Example PTS00014 – Batch Directory Scan

Sample Script

For the sample script that corresponds to this job, see the following script in the sample/userguide directory:

PTS00014: Batch Directory Scan.

Rationale

This job uses:
  • DDL operator because it can DROP/CREATE staging tables and target tables prior to loading and DROP unneeded tables at the conclusion of the job.
  • DataConnector operator because it is the only producer operator that reads data from external flat files.
  • Load operator because it is the consumer operator that offers the best performance for high speed writing of a large number of rows into an empty Teradata Database table.