Learn how to export data from a JDBC ResultSet into an Excel file with Apache POI
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Baeldung Author
Manfred Ng
I have been a software developer since graduation and have worked on diverse projects using various Java technologies and frameworks. I enjoy gaming and staying active during my free time. 😎
Here's what I've written (so far):
Baeldung on Java
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- Spring Boot (6)
- Java IO (5)
- JPA (5)
- Spring Data (4)
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- Artificial Intelligence (4)
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- Testing (1)
- Spring Web (1)
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Change Field Value Before Update and Insert in Hibernate
Filed under Persistence
Tutorial on how to change a field value before update and insert in Hibernate.
Sort an Array of Strings According to String Lengths
Filed under Java Array, Java String
Learn how to sort an array of strings by supplying Array.sort() a dedicated Comparator that sorts an array of strings based on their lengths.
Fixing Spring Boot H2 Exception: “Schema not found”
Filed under Persistence, Spring Boot
Explore the cause of the H2 “Schema not found” exception and look into two different approaches to resolving it.
Find Distinct Rows Using Spring Data JPA
Filed under JPA, Spring Data
Learn various methods to retrieve distinct entities and fields with Spring Data JPA.
Clear Managed Entities in JPA/Hibernate
Filed under JPA
Review how entities are managed in JPA and explore a scenario where the persistence context may not return fresh data due to external changes.
How to Test a Spring AOP Aspect
Learn how to conduct unit and integration tests on Spring AOP aspects.
Introduction to DuckDB
Filed under Persistence
Learn about the advantages of the DuckDB database and some fundamental operations via illustrative examples
Spring Data JPA Repository for Database View
Filed under Spring Data
Learn how Spring Data repositories can be effectively applied to database views