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

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

Product
Advanced SQL Engine
Teradata Database
Release Number
17.10
Release Date
July 2021
Content Type
Programming Reference
Publication ID
B035-1145-171K
Language
English (United States)
MDIFF ( value_expression, width, sort_spec [,...] )

Syntax Elements

value_expression
A numeric column or literal expression for which a moving difference is to be computed.
The expression cannot contain any ordered analytical or aggregate functions.
width
The number of previous rows to be used in the computation.
The value is always a positive integer literal.
The maximum is 4096.
sort_spec
sort_expression [ ASC | DESC ]
sort_expression
A literal or column expression or comma-separated list of literal or column expressions to be used to sort the values.
ASC
Ascending sort order.
DESC
Descending sort order.