Argument Types and Rules - Advanced SQL Engine - Teradata Database

SQL Functions, Expressions, and Predicates

Product
Advanced SQL Engine
Teradata Database
Release Number
17.05
17.00
Published
June 2020
Language
English (United States)
Last Update
2021-01-30
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B035-1145
lifecycle
previous
Product Category
Teradata Vantage™

Expressions passed to this function can be one of the following data types:

  • CHAR
  • VARCHAR
  • CLOB
  • BYTEINT
  • SMALLINT
  • INTEGER
  • BIGINT
  • FLOAT/REAL/DOUBLE PRECISION
  • DECIMAL/NUMERIC
  • NUMBER

If any of the input arguments are NULL, the function returns NULL.

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 Vantage. If an argument cannot be converted to the required data type following the UDF implicit conversion rules, it must be explicitly cast.

For details, see “Compatible Types” in Teradata Vantage™ - SQL External Routine Programming , B035-1147 .