Macro Support for Global Temporary and Volatile Tables - Analytics Database - Teradata Vantage

SQL Data Definition Language Detailed Topics

Deployment
VantageCloud
VantageCore
Edition
Enterprise
IntelliFlex
VMware
Product
Analytics Database
Teradata Vantage
Release Number
17.20
Published
June 2022
Language
English (United States)
Last Update
2023-07-11
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B035-1184
lifecycle
latest
Product Category
Teradata Vantage™

You can reference both global temporary tables and volatile tables from a macro.

When you perform a macro that involves a global temporary table, then all references to the base temporary table are mapped to the corresponding materialized global temporary table within the current session. Note that this means the same macro, when performed from two different sessions, can have very different results depending on the content of the materialized global temporary tables.

When you perform a macro that contains an INSERT request that inserts rows into a global temporary table, and that table is not materialized in the current session, then an instance of the global temporary table is created when the INSERT request performs.

When you perform a macro that contains a CREATE VOLATILE TABLE request, then the referenced table is created in the current session. If the macro includes a DROP on the named volatile table, then that table is dropped from the current session.