How do relational databases store and retrieve data?

How does a relational database organize data?

A relational database organizes data into tables which can be linked—or related—based on data common to each. This capability enables you to retrieve an entirely new table from data in one or more tables with a single query.

How are relational databases stored in-memory?

Data storage in an in-memory database relies on a computer's random access memory (RAM) or main memory instead of traditional disk drives. Data is loaded into an in-memory database in a compressed and non-relational format. The data is in a directly usable format without the barrier of compression or encryption.

How is database data stored?

Inside a database, data is stored into tables. As we mentioned in the previous post, the S in SQL stands for structured. This means that all the data has to be stored in a standardized manner. This is why tables have been created. Tables are the simplest objects (structures) for data storage that exist in a database.