Introduction to ANSI Bitemporal Tables | Teradata Vantage - Working With ANSI Bitemporal Tables - Analytics Database - Teradata Vantage

ANSI Temporal Table Support

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
dita:mapPath
jqu1628112571823.ditamap
dita:ditavalPath
qkf1628213546010.ditaval
dita:id
esa1472244798285
lifecycle
latest
Product Category
Teradata Vantageā„¢
You can combine system time and valid time in a single table to use the features of both:
  • Adding a system-time dimension to a table lets you track all changes made to the table, leaving a permanent, persistent history of rows within the table itself.
  • Adding a valid-time dimension to a table allows the database to automatically adjust the valid-time period data as modifications to the table are made that affect the effective dates of the information contained in each row.

Because system time and valid time are independent dimensions any change to a bitemporal table affects each dimension independently, and the consequences to the table are a combination of the effects in cases that have been described for individual system-time and valid-time tables in Working With ANSI System-Time Tables and Working With ANSI Valid-Time Tables