CHARACTER_LENGTH Function Syntax | Teradata Vantage - 17.10 - CHARACTER_LENGTH Function Syntax - Advanced SQL Engine - Teradata Database

Teradata Vantageā„¢ - SQL Functions, Expressions, and Predicates

Advanced SQL Engine
Teradata Database
Release Number
Release Date
July 2021
Content Type
Programming Reference
Publication ID
English (United States)
{ CHARACTER_LENGTH | CHAR_LENGTH } ( string_expression )

Syntax Elements

The string expression for which the length is to be returned.
The type of string_expression must be CHARACTER, VARCHAR, or CLOB. For non-character data types, the function returns an error.
By default, Vantage performs implicit type conversion on a UDT argument that has an implicit cast that casts between the UDT and a predefined character type.
To define an implicit cast for a UDT, use the CREATE CAST statement and specify the AS ASSIGNMENT clause.
Implicit type conversion of UDTs for system operators and functions, including CHARACTER_LENGTH, is a Teradata extension to the ANSI SQL standard. To disable this extension, set the DisableUDTImplCastForSysFuncOp field of the DBS Control Record to TRUE.