Adatbázismodellezésben

Adatbázismodellezésben refers to the process of creating a conceptual representation of data and its relationships within a database. This involves defining the structure, organization, and constraints of the data to ensure its integrity and efficiency. There are several types of database models, each with its own strengths and weaknesses. The relational model, where data is organized into tables with rows and columns and relationships are established through keys, is the most widely used. Other models include hierarchical, network, object-oriented, and NoSQL models, which are suited for different types of data and applications.

The process typically begins with identifying the data requirements of a system and then translating these into a logical model. This logical model describes the entities, their attributes, and the relationships between them without specifying the physical implementation details. Subsequently, a physical model is developed, which maps the logical design onto a specific database management system (DBMS) and defines the actual storage structures, data types, and indexes. Effective database modeling is crucial for building robust, scalable, and maintainable database systems, impacting performance and data consistency.