Named-query Questions

⦿How to Use Named Queries with LIKE in the WHERE Clause

Learn how to implement named queries using the LIKE operator in the WHERE clause for effective database querying.

⦿How to Use Optional Parameters with Named Queries in Hibernate?

Learn how to effectively implement optional parameters in named queries using Hibernate with detailed explanations and code examples.

⦿How to Use JPA NamedQuery for Counting Entities?

Learn how to effectively use JPA NamedQuery to count entities in your Java application. Stepbystep guide with code examples included.

⦿What is the Return Value of a JPA Query When No Matches Are Found?

Discover what happens when a JPA query returns no results including return values and best practices for handling such scenarios.

⦿JPA Named Queries vs Criteria API: Which Should You Use?

Explore the differences between JPA Named Queries and Criteria API to determine which is best for your Java application. Learn their use cases and benefits.

⦿How to Define a Named Query in orm.xml Using JPA and Hibernate?

Learn how to define a named query in orm.xml with JPA and Hibernate for efficient database interaction.

⦿Are Hibernate Named Queries Truly Precompiled?

Explore whether Hibernate Named Queries are genuinely precompiled and understand their benefits limitations and usage.

⦿How to Use @NamedNativeQuery with @SqlResultSetMapping for Non-Entity Classes in JPA

Learn how to effectively use NamedNativeQuery and SqlResultSetMapping for nonentity classes in JPA with detailed examples and tips.

⦿How to Perform an Update Using EntityManager in Hibernate

Learn how to effectively use EntityManager for updating entities in Hibernate. Stepbystep guide with examples and common pitfalls.

⦿Can You Use SQL's IN(...) Statement Within a Named Query?

Explore if SQLs IN... statement can be utilized in named queries with examples and common pitfalls.

⦿How to Resolve java.sql.SQLException: ORA-00932: Inconsistent Data Types Error in SQL?

Learn how to troubleshoot the ORA00932 error in Java SQL focusing on causes solutions and code snippets for effective debugging.

⦿How to Use JPA setParameter for 'NOT IN (:param)' Queries

Learn how to correctly use JPAs setParameter with NOT IN queries and avoid common pitfalls.

⦿How to Select a Random Row Using JPA

Learn how to select a random row from a database using Java Persistence API JPA with effective strategies and code snippets.

⦿How to Use JPQL with Subquery to Select the Maximum Count?

Learn to use JPQL subqueries to select the maximum count effectively. Discover stepbystep examples and common mistakes.

⦿How to Resolve a String Issue with NamedQuery in Java

Learn how to troubleshoot and fix String issues in NamedQuery in Java with our expert guide and code examples.

⦿How to Convert a SQL Select Query from Two Joined Tables into HQL?

Learn how to translate SQL select queries involving joined tables into Hibernate Query Language HQL with clear explanations and examples.

⦿How to Use JPA Named Queries with Left Join Fetch

Learn how to effectively use JPA named queries with left join fetch for optimized data retrieval in your Java applications.

⦿How to Resolve 'Named Query Not Found' Error in Spring Framework?

Discover effective solutions to the Named Query Not Found error in the Spring framework. Get expert insights and troubleshooting tips now

⦿How to Resolve the MappingException: Named Query Not Known Error in Hibernate

Learn how to troubleshoot and fix the MappingException Named query not known error in Hibernate with this comprehensive guide.

⦿How to Check if a Specific Named Parameter Exists in a Hibernate Named Query?

Learn how to verify the existence of named parameters in Hibernate named queries with detailed explanations and code snippets.

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