TD_NORMALIZE_OVERLAP | Teradata Vantage - 17.10 - TD_NORMALIZE_OVERLAP - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL Date and Time Functions and Expressions

Advanced SQL Engine
Teradata Database
Release Number
Release Date
July 2021
Content Type
Programming Reference
Publication ID
English (United States)

Combines the rows whose Period values overlap so that the resulting normalized row contains the earliest beginning bound and the latest ending bound from the Period values of all the rows involved.

Result Type

This function returns result rows with the columns specified in the RETURNS clause as follows:
  • The grouping columns specified in the input argument.
  • The Period column with normalized Period values.
  • An optional INTEGER column containing the count of the rows that were normalized because their Period values meet.