Introduction to Spring Data JPA:
<ul>
<li>Provides a repository abstraction over the Java Persistence API (JPA).
</li>
<li>Simplifies data access layer with minimal boilerplate code.
</li>
</ul>
Connecting to a Database and CRUD Operations:
<ul>
<li>Use Spring Data JPA repositories to perform CRUD operations.
</li>
<li>Methods like <code>save()</code>, <code>findById()</code>, <code>findAll()</code>, <code>deleteById()</code> are provided out of the box.
</li>
</ul>

**Introduction to Spring Data JPA:**

* Provides a repository abstraction over the Java Persistence API (JPA).
    
* Simplifies data access layer with minimal boilerplate code.
    

**Connecting to a Database and CRUD Operations:**

* Use Spring Data JPA repositories to perform CRUD operations.
    
* Methods like `save()`, `findById()`, `findAll()`, `deleteById()` are provided out of the box.

Java Spring Boot Data Handling and Persistence