Hibernate Group-By Using Criteria API

Date: 2025-01-10

This article demonstrates using Hibernate's Criteria API to perform group-by operations in Java. It provides a practical example of grouping products by category and counting the number of products in each category. The process involves creating a CriteriaQuery, using multiselect() and groupBy() methods, and executing the query to retrieve the aggregated data. The article also includes a JUnit test to verify the functionality. The example uses an H2 database and requires Hibernate and JPA dependencies.

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