DATABASE FUNDAMENTALS
WHAT IS DATABASE MANAGEMENT
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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non-relational DBMS
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mobile DBMS
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relational DBMS
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hierarchical DBMS
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Detailed explanation-1: -A relational database represents data as two-dimensional tables with records organized in rows and attributes in columns. A relational database is a set of formally described tables from which data can be accessed or reassembled in many different ways without having to reorganize the database tables.
Detailed explanation-2: -Relational databases store data in a two-dimensional format where tables of data are presented in rows and columns. The following table shows a typical relational database (sales volumes for a printing company).
Detailed explanation-3: -2D data types exist in a two-dimensional coordinate space represented by X (longitude) and Y (latitude) coordinates.
Detailed explanation-4: -The relational database model stores data in (a) two-dimensional tables and uses (b) entity-relationship diagrams to describe the relationships among data. Managers see information as a critical resource and require systems that let them exploit it for competitive advantage.
Detailed explanation-5: -Introduction. The relational model in DBMS is an abstract model used to organize and manage the data stored in a database. It stores data in two-dimensional inter-related tables, also known as relations in which each row represents an entity and each column represents the properties of the entity.