schémahalmaz

A schema set, or schémahalmaz in Hungarian, refers to a collection of database schemas. A database schema defines the structure of a database, including its tables, columns, relationships, and constraints. In essence, a schema set is a grouping of these structural definitions. This concept is particularly relevant in relational database management systems where a single database instance might contain multiple, distinct schemas. Each schema within a set can be thought of as a logical container for related database objects, allowing for better organization, security, and management of data. For example, an organization might use different schemas within the same database to separate data belonging to different departments, such as sales, human resources, or finance. This separation helps in managing permissions, as access can be granted to specific schemas rather than the entire database. Furthermore, it prevents naming conflicts between objects in different logical groupings. The term "schémahalmaz" emphasizes the cumulative nature of these individual schema definitions, forming a comprehensive blueprint for the database's overall organization and structure.