16.20 - Using CASE_N with CURRENT_DATE or CURRENT_TIMESTAMP in a PPI - Teradata Database

Teradata Vantage™ - SQL Functions, Expressions, and Predicates

prodname
Advanced SQL Engine
Teradata Database
vrm_release
16.20
created_date
March 2019
category
Programming Reference
featnum
B035-1145-162K

You can define a partitioning expression that uses CASE_N with the built-in functions CURRENT_DATE or CURRENT_TIMESTAMP. Subsequently, you can use the ALTER TABLE TO CURRENT statement to re-partition the table data using a newly resolved current date or timestamp.

For more information, see “Rules and Guidelines for Optimizing the Reconciliation of CASE_N PPI Expressions Based On Updatable Current Date and Updatable Current Timestamp” in Teradata Vantage™ - SQL Data Definition Language Syntax and Examples, B035-1144.