What experience do you have working with SQL and databases?

I have experience working with SQL and databases, including writing queries for selecting, inserting, updating, and deleting data. I am familiar with basic operations such as JOIN, GROUP BY, aggregate functions. I have also worked with indexes to optimize queries and understand data normalization.

An example of a simple SQL query to select users over 18 years old:

SELECT id, name, email FROM users WHERE age > 18 ORDER BY name;

In Java, I used JDBC and ORM frameworks like Hibernate for interacting with the database.