16.20 - Argument Types and Rules - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL Functions, Expressions, and Predicates

Product
Advanced SQL Engine
Teradata Database
Release Number
16.20
Published
March 2019
Language
English (United States)
Last Update
2020-03-25
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Expressions passed to this function must have the following data types:

  • NEW VARIANT_TYPE value = BYTEINT, SMALLINT, BIGINT, INTEGER, DECIMAL, FLOAT, DATE, TIME, TIME WITH TIME ZONE, TIMESTAMP, TIMESTAMP WITH TIME ZONE, INTERVAL, CHAR, VARCHAR
    value cannot be CLOB or GRAPHIC.
  • delimit_string_value = VARCHAR
  • quote_string_value = VARCHAR

You can also pass arguments with data types that can be converted to the above types using the implicit data type conversion rules that apply to UDFs.

The UDF implicit type conversion rules are more restrictive than the implicit type conversion rules normally used by Teradata Database. If an argument cannot be converted to the required data type following the UDF implicit conversion rules, it must be explicitly cast.