🔗 Intro to joins

  • What is a join?

    Joining refers to combining rows from two or more database tables. Imagine a simple database with just 2 tables: A Customers table An...

  • Types of join

    In this post, the left table (or table A), means the table you're starting from. The right table (or table B), means the table you're ...

  • Database table relationships

    Three types of relationship exist between related tables.  1️⃣ One-to-One One record in a table is associated with one record, and only o...