![]() In addition, the serverless SQLite doesn’t require installation or configuration, making it self-contained and less dependent on the operating system (OS). Most databases require a server process, but SQLite is serverless, meaning the application can read and write data directly without client-server architecture. SQLite, as the name implies, is lightweight regarding setup, administration, and storage. This foreign key references a specific row in the “department” table. ![]() ![]() Instead, you can add a column with a reference - the foreign key - to the department in the employee table. There’s no need to add the department name to the employee table. For example, suppose you have a database of employees in a company. The primary key is the unique value that identifies each database row, while you can use the foreign key to reference other tables. There are two types of keys in RDBMS: the primary key and the foreign key. That’s why these DBMSes are called relational. Each table consists of rows that contain a unique value called a key, which is used to relate the tables. RDBMSes store data in multiple two-dimensional tables instead of one big table. SQLite is an open-source relational database management system (RDBMS). Most of these types deal with data in a hierarchical model, organized in a tree-like architecture, and connected through links. Some open-source databases operate on an available-source basis, making them more flexible to match your application’s needs.Īs mentioned before, DBMSes consist of four main types.Lower cost of scaling to support higher amounts of data or requests.The database information isn’t shared with others, providing a security advantage.Their main benefits include the following: While there are many proprietary DBMS options, open-source databases have proven to be the most popular.
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