Behind every software application, web or mobile, is a database in which all the data needed for facilitating the operations of the application are stored and processed. To understand modern days software application development, the database is a must. The two major kinds of database are SQL and no-SQL databases. Here we focus on SQL as they represent the majority of databases used. For instance, MySQL and PostgreSQL.
What is a relational database?
Primary and foreign keys in relational database.
Learn SQL using SQLite.
Filter, sort, and group data using SQL commands
One-to-one, one-to-many, and many-to-many relationships in SQL.