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™
Use the concatenation operator on strings and string expressions of type:
  • Byte

    If any argument is a byte type, all other arguments must also be byte types.

  • Numeric

    A numeric argument is converted to a character string using the format for the numeric value. For details about implicit numeric to character data type conversion, see “Implicit Numeric-to-Character Conversion”

  • Character

    When the arguments are both character types, but have different server character sets, then implicit string conversion occurs. For details, see "Implicit Character-to-Character Translation" in Teradata Vantage™ - Data Types and Literals, B035-1143.

  • UDTs that have implicit casts to a predefined character type.

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

    Implicit type conversion of UDTs for system operators and functions, including the concatenation operator, is a Teradata extension to the ANSI SQL standard. To disable this extension, set the DisableUDTImplCastForSysFuncOp field of the DBS Control Record to TRUE. For details, see Teradata Vantage™ - SQL Data Definition Language Syntax and Examples, B035-1144.

    For more information on implicit type conversion of UDTs, see "Data Type Conversions" in Teradata Vantage™ - Data Types and Literals, B035-1143.