17.05 - EXISTS Quantifier and Correlated Subqueries - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL Data Manipulation Language

Product
Advanced SQL Engine
Teradata Database
Release Number
17.05
Published
January 2021
Language
English (United States)
Last Update
2021-01-22
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The EXISTS quantifier is supported as the predicate of a search condition in a WHERE clause.

EXISTS tests the result of the subquery. The subquery is performed for each row of the table specified in the outer query when the subquery is correlated.

If the subquery returns response rows, then its WHERE condition is satisfied.