Examples: SELECT Statements with a Correlated Subquery - Analytics Database - Teradata Vantage

SQL Data Manipulation Language

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
2024-04-05
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lifecycle
latest
Product Category
Teradata Vantage™

Use a correlated subquery to return the names of the employees with the highest salary in each department.

     SELECT name
     FROM personnel p
     WHERE salary = (SELECT MAX(salary)
                     FROM personnel sp
                     WHERE p.department=sp.department);

Use a correlated subquery to return the names of publishers without books in the library.

     SELECT pubname
     FROM publisher
     WHERE 0 = (SELECT COUNT(*)
                FROM book
                WHERE book.pubnum=publisher.pubnum);