17.05 - Example: Self-Join Condition DELETE - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL Data Manipulation Language

Product
Advanced SQL Engine
Teradata Database
Release Number
17.05
Release Date
January 2021
Content Type
Programming Reference
Publication ID
B035-1146-175K
Language
English (United States)

This example deletes rows from the employee table for managers who have less work experience than their employees. This delete performs a self-join on the employee table:

     DELETE FROM employee AS managers
     WHERE managers.deptno = employee.deptno
     AND   managers.jobtitle IN ('Manager', 'Vice Pres')
     AND   employee.yrsexp > managers.yrsexp;