--create a table named tracks with an id, title, and album_id column. The id column should be the PRIMARY KEY CREATE TABLE tracks (id SERIAL PRIMARY KEY, title TEXT, album_id INTEGER); ...

Read this SQL tutorial to learn when to use SELECT, JOIN, subselects and UNION to access multiple tables with a single statement. It’s sometimes difficult to know which SQL syntax to use when ...

Joins and subqueries are essential tools for combining and filtering data from multiple tables or sources, but they can also affect the performance and complexity of your SQL code. To ensure you ...