RDBMSs
RDBMSs, or Relational Database Management Systems, are software systems designed to store, manage, and retrieve data structured in a tabular format, known as relations. These systems use a relational model introduced by E.F. Codd in 1970, where data is organized into tables composed of rows (records) and columns (attributes). Each table typically has a primary key, a unique identifier for its records, and may establish relationships with other tables through foreign keys.
RDBMSs support a standardized querying language called SQL (Structured Query Language), which users employ to perform
Common examples of RDBMSs include MySQL, PostgreSQL, Oracle Database, Microsoft SQL Server, and IBM Db2. They
In addition to their widespread use, RDBMSs have evolved to support features such as distributed databases,
Overall, RDBMSs remain a cornerstone of contemporary data infrastructure, enabling efficient data organization and retrieval while