Example - Analytics Database - Teradata Vantage

SQL Date and Time Functions and Expressions

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
cpk1628111786971.ditamap
dita:ditavalPath
qkf1628213546010.ditaval
dita:id
pxz1544241488545
lifecycle
latest
Product Category
Teradata Vantage™

If we assume that the employee table, created by the following SQL statement:

CREATE MULTISET TABLE employee(empno    INTEGER,
                               ename    VARCHAR(50),
                               deptno   INTEGER,
                               jobstart DATE NOT NULL,
                               jobend   DATE NOT NULL,
                               PERIOD FOR jobduration(jobstart, jobend))
                               PRIMARY INDEX(empno);

contains the following row:

INSERT INTO employee(1025, 'John', '999', DATE'2005-02-03', UNTIL_CHANGED);

The following SELECT statement:

SELECT empno,ename(CHAR(30)) FROM employee WHERE END(jobduration) IS UNTIL_CHANGED;

returns:

empno ename
------ ------
  1025   John