Subject area

Servers

What servers and the databases on them do, in plain words: VPS and dedicated machines, MySQL, PostgreSQL, MongoDB, Redis and the terms you need when you run your own server.

4 concepts in this area

M

MongoDB MongoDB is a database that keeps each record as its own flexible document, so two products can carry completely different details without being forced into one fixed form. Read the definition MySQL MySQL is the most widely used free database in the world, and it is where a website keeps its customers, orders and prices in tidy tables. Read the definition

P

PostgreSQL PostgreSQL is a free database that refuses to store anything that does not make sense, which is why it is chosen when the numbers have to be right. Read the definition

R

Redis Redis is a store that keeps data in the computer's memory instead of on a disk, so the same expensive question can be answered instantly the second time. Read the definition

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