From analysts and engineers to IT decision-makers, many are familiar with Relational Database Management Systems (RDBMS), and the Structured Query Language (SQL) used to interact with them. While these terms refer to a decades-old paradigm that remains a wide standard, database systems’ sheer variety and depth can be dizzying today. What’s more, rising volumes of unstructured data, availability of storage and processing power, and evolving analytic requirements have generated interest in fundamentally different technologies.These popular alternatives to traditional RDBMSs show promise for various modern use cases, collectively known as NoSQL.To make informed decisions about which to use, practitioners should be aware of the differences between SQL, NoSQL, individual Database Management Systems (DBMS) and languages, the situations each is best suited for and how the landscape is changing.SQL vs NoSQL: Five Main DifferencesSQL is the programming language used to interface with relational databases. (Relational databases model data as records in rows and tables with logical links between them). NoSQL is a class of DBMs that are non-relational and generally do not use SQL.There are five practical differences between SQL and NoSQL:
- Language
- Scalability
- Structure
- Properties
- Support and communities
- Language
- Scalability
- Structure
- Properties
- Support and communities
- Graph or hierarchical data
- Data sets which are both large and mutate significantly,
- Businesses growing extremely fast but lacking data schemata.
- This might translate to social networks, online content management, streaming analytics, or mobile applications in terms of use cases.
- Small
- Conceptually modelled as tabular
- In systems where consistency is critical.
Evita Veigas
5 min read