16.20 - Usage Notes - 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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For all numeric types except FLOAT/REAL/DOUBLE PRECISION, SIGN will return the following:

  • If numeric_value is < 0, -1 is returned.
  • If numeric_value is = 0, 0 is returned.
  • If numeric_value is > 0, 1 is returned.

For FLOAT/REAL/DOUBLE PRECISION, SIGN will return the following:

  • If numeric_value is < 0, -1 is returned.
  • If numeric_value is >= 0, 1 is returned.

If the input argument is NULL, the function returns NULL.