LDIFF Function | SQL Date/Time Functions & Expressions | Teradata Vantage - 17.00 - 17.05 - LDIFF - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL Date and Time Functions and Expressions

Product
Advanced SQL Engine
Teradata Database
Release Number
17.00
17.05
Release Date
June 2020
Content Type
Programming Reference
Publication ID
B035-1211-170K
Language
English (United States)

Returns the portion of the first Period expression that exists before the beginning of the second Period expression when the Period expressions overlap.

When the Period expressions overlap but there is no portion of the first Period expression before the beginning of the second Period expression or the Period expressions do not overlap, the function returns NULL. If either Period expression is NULL, LDIFF returns NULL.

Syntax

period_expression LDIFF period_expression
period_expression

Any expression that evaluates to a Period data type.

The Period expression must be comparable with the other expression. Implicit casting to a Period data type is not supported.