16.20 - CAST FROM data type - Teradata Database - Teradata Vantage NewSQL Engine

Teradata Vantage™ SQL Data Definition Language Syntax and Examples

Product
Teradata Database
Teradata Vantage NewSQL Engine
Release Number
16.20
Published
March 2019
Language
English (United States)
Last Update
2019-05-24
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The result type returned by the external function that is to be converted to the type specified by the RETURNS clause.

Example:

  ...RETURNS DECIMAL(9,5) CAST FROM FLOAT...

Whenever a LOB that requires data type conversion is passed to an external UDF, the LOB must first be materialized for the conversion to take place.

The value for data_type can be a UDT.

You cannot specify a character server data set attribute of KANJI1. Otherwise, Teradata Database returns an error to the requestor.