16.20 - Job Example 16: Extract BLOB/CLOB/JSON Data and Write It to an External File - 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

Extract rows that include BLOB/CLOB/JSON data from a Teradata Database table and write them to an external flat file.

Data Flow Diagram

The following figure shows a diagram of the elements for Job Example 16.

Job Example PTS00021, PS00027 – Extract BLOB/CLOB/JSON Data and Write It to an External File

Sample Script

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

  • PTS00021: Extracting BLOB/CLOB Data and Writing It to an External Target.
  • PTS00027: Extracting BLOB/CLOB/JSON Data and Writing It to an External Target.

Rationale

This job uses the operators shown for the following reasons:

  • Use SQL Selector operator because it is the only operator that can read BLOB/CLOB/JSON data from a Teradata Database and write it to separate external data files. One data file stores data for one LOB/JSON column.
  • Use DataConnector operator because it is the only operator that can write LOB/JSON data to an external file.