relationsdatabasliknande

Relationsdatabasliknande is a term used in information technology to describe data storage systems, models, or interfaces that resemble a relational database in structure or usage, but do not fully conform to the formal relational model as defined by Codd. The term is a compound Swedish word combining 'relationsdatabas' (relational database) with 'liknande' (similar). It is often applied to hybrid systems that aim to provide familiar relational features while leveraging non-relational storage or relaxed constraints.

Typically, such systems organize data in table-like structures with rows and columns and offer SQL or SQL-like query capabilities, including basic join operations and integrity constraints. However, they may relax or omit aspects central to the strict relational model, such as full schema normalization, comprehensive foreign-key enforcement, or ACID transactions under all workloads. They may store data using non-tabular backends (document, key-value, or wide-column stores) and present a relational facade, or provide limited SQL support, distributed processing, or eventual consistency.

Use cases include scenarios where organizations seek the familiarity and expressiveness of SQL and relational concepts while pursuing better scalability, performance, or flexibility than traditional relational databases. Related concepts include NewSQL and SQL-on-non-relational approaches, as well as ORMs that map relational schemas onto non-relational backends.

In summary, relationsdatabasliknande describes systems that resemble relational databases in interface and data modeling but diverge in one or more aspects of the strict relational model, often as part of a broader strategy to balance structure with scalability.