Adding and Subtracting Interval Values - Analytics Database - Teradata Vantage

SQL Date and Time Functions and Expressions

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
2023-10-30
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lifecycle
latest
Product Category
Teradata Vantage™

DateTime expressions formed by adding an Interval to a DateTime value or by subtracting an Interval from a DateTime value are performed by adding or subtracting values of the appropriate component fields and carrying overflow from lower precision fields with the appropriate modulo to represent proper arithmetic in terms of the calendar and clock.

An interval_expression or interval_term may only contain DateTime fields that are contained in the corresponding date_time_expression or date_time_term.

When an Interval value is added to or subtracted from a TIME or TIMESTAMP value, the time zone displacement value associated with the result is identical to that associated with the TIME or TIMESTAMP value.