Example: Simple UPDATE on an ANSI Valid-Time Table - 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
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lifecycle
latest
Product Category
Teradata Vantage™

A simple UPDATE statement without temporal qualification operates just as an UPDATE on a nontemporal table, completely UPDATING rows that qualify for deletion:

UPDATE employee_vt SET terms='TA07' WHERE ename='Ash';


SELECT * FROM employee_vt;

Output:

 eid ename terms   job_start     job_end
---- ----- ----- ----------- -----------
1002 Ash    TA07  2003/01/01  2003/12/31
1005 Alice  TW10  2004/12/01  9999/12/31
1010 Mike   TW07  2015/01/01  2016/12/31
1001 Sania  TW08  2002/01/01  2006/12/31
1004 Fred   PW12  2001/05/01  9999/12/31
1003 SRK    TM02  2004/02/10  2005/02/09