Definition
A database is an organised system for storing structured data, managed by a DBMS (Database Management System). Relational databases (PostgreSQLPowerful open-source relational database with support for advanced data types and extensions., MySQL, OracleOne of the world's largest technology companies - known for Oracle Database, Fusion Middleware and Oracle Cloud. Tvimenning's staff have experience with Oracle platforms.) use SQL and a table structure. NoSQL databases (MongoDB, Redis, Cassandra) use flexible data models. In the energy sector, databases are central to time seriesMeasurements of the same quantity repeated over time. The order and the timestamp are part of the data, not decoration. (metering dataData from electricity meters - the foundation for billing, balance settlement and market processes in the power market.), customer information and transaction logs.