Implicit Type Conversion - Teradata Vantage NewSQL Engine - 16.20

Teradata Vantage™ Data Types and Literals

prodname
Teradata Database
Teradata Vantage NewSQL Engine
vrm_release
16.20
category
Programming Reference
featnum
B035-1143-162K
Performing an implicit data type conversion requires a cast definition (see Usage Notes) that specifies the following:
  • the AS ASSIGNMENT clause
  • a target data type that is in the same INTERVAL family as the target of the implicit cast:
This INTERVAL data type … Belongs to this INTERVAL family …
  • INTERVAL YEAR
  • INTERVAL YEAR TO MONTH
  • INTERVAL MONTH
Year-Month
  • INTERVAL DAY
  • INTERVAL DAY TO HOUR
  • INTERVAL DAY TO MINUTE
  • INTERVAL DAY TO SECOND
  • INTERVAL HOUR
  • INTERVAL HOUR TO MINUTE
  • INTERVAL HOUR TO SECOND
  • INTERVAL MINUTE
  • INTERVAL MINUTE TO SECOND
  • INTERVAL SECOND
Day-Time

The target data type of the cast definition does not have to be an exact match to the target of the implicit type conversion.

Teradata Database performs implicit UDT-to-INTERVAL conversions for the following operations:
  • UPDATE
  • INSERT
  • Passing arguments to stored procedures, external stored procedures, UDFs, and UDMs
  • Specific system operators and functions identified in other sections of this document, unless the DisableUDTImplCastForSysFuncOp field of the DBS Control Record is set to TRUE