Argument Types and Rules - Analytics Database - Teradata Vantage

SQL Functions, Expressions, and Predicates

Deployment
VantageCloud
VantageCore
Edition
Enterprise
IntelliFlex
VMware
Product
Analytics Database
Teradata Vantage
Release Number
17.20
Published
June 2022
Language
English (United States)
Last Update
2024-01-12
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lifecycle
latest
Product Category
Teradata Vantage™

If arg is not numeric, the value is converted to a numeric value, based on implicit type conversion rules. If the argument cannot be converted, an error is reported. For more information on implicit type conversion, see Teradata Vantage™ - Data Types and Literals, B035-1143.

If arg is a character string, the value is converted to a numeric value of FLOAT data type.

If arg is a UDT, the following rules apply:
  • The UDT must have an implicit cast to any of the following predefined types:
    • Numeric
    • Character
    • DATE
    • Interval

      To define an implicit cast for a UDT, use the CREATE CAST statement and specify the AS ASSIGNMENT clause. For more information, see Teradata Vantage™ - SQL Data Definition Language Syntax and Examples, B035-1144.

  • Implicit type conversion of UDTs for system operators and functions, including NULLIFZERO, is a Teradata extension to the ANSI SQL standard. To disable this extension, set the DisableUDTImplCastForSysFuncOp field of the DBS Control Record to TRUE. See Teradata Vantage™ - Database Utilities, B035-1102.
NULLIFZERO cannot be applied to the following types of arguments:
  • BYTE or VARBYTE
  • BLOB or CLOB
  • CHARACTER or VARCHAR if the server character set is GRAPHIC