How to Program with Java Podcast

Hibernate @OneToOne Unidirectional / Bidirectional

One-to-One Unidirectional Relationship Since you’ve already learned about the ins ...

One-to-One Unidirectional Relationship Since you’ve already learned about the ins and outs of how unidirectional one-to-many and bidirectional one-to-many relationships work, it’s time to learn about the One-to-One...

Hibernate @OneToMany Bidirectional Relationship

Since we’ve already learned about the unidirectional @ManyToOne relationship, we ...

Since we’ve already learned about the unidirectional @ManyToOne relationship, we can now move on to talking about what a bidirectional relationship is like, when using Hibernate. The term “bidirectional” literally means...

Mapping Relationships with Hibernate

The One-To-Many Relationship via @ManyToOne Annotation

Hibernate - Creating Data Access Objects (DAOs)

Data Access Objects – What are they? Data Access Objects ...

Data Access Objects – What are they? Data Access Objects (or DAOs for short) are used as a direct line of connection and communication with our database. DAOs are used when the actual CRUD (CRUD = Create, Read, Update, Delete) operations are...

Hibernate's most important annotation - @Entity

Mapping Your Java Beans

Hibernate Persistence for Beginners

What is a Persistence Framework? As the name implies, it ...

What is a Persistence Framework? As the name implies, it has something to do with persisting things... this means that we're still talking about databases.  But what is it that we are persisting with this framework? Objects (of course) A...

The SQL Subquery

The easy to read alternative to the 'join' syntax

SQL Group By

Grouping data and performing aggregate functions on it

SQL Aggregate Functions

MIN, MAX, SUM, AVG and COUNT

Database Joins

Inner Join, Left Outer and Right Outer Join