the ---- of a database presents the views that the end user have
The external level of the ANSI/SPARC architecture represents how users view the data stored in the database. It defines the logical view of the data for each user, which includes specifying the data format, structure, and access permissions that users interact with. This level shields users from the complexities of the internal and conceptual levels of the architecture.
ask the DBA
a data model
Database auditing is used to observe the actions of the database users. It is commonly used for security purposes to ensure that information is only accessed by those with the proper authority to view it.
Data models can be classified into three main categories: conceptual data model (high-level view of the data and its relationships), logical data model (detailed structure of the data and relationships), and physical data model (implementation of the database design on a specific database management system).
A "split form" in applications like Microsoft Access allows users to simultaneously view both a simple form and a database view of the data. This type of form displays a form view for data entry and a datasheet view for a tabular representation of the same data, enabling users to easily compare and edit information. This dual view enhances usability and data management efficiency.
Purpose of database users with an abstract view of the data that is system hides certain details of how the data are stored and maintained. It gives an architecture is to separate the user applications and the physical database.
The three levels of data abstraction in a DBMS are physical, logical, and view. Physical level: Describes how data is stored in the database, including details like data storage and access paths. Logical level: Focuses on the structure of the data in the database, including schemas, tables, and relationships. View level: Represents how users view the data, providing a customized and simplified representation of the data to different user groups.
A form is an interface in user specified layout that lets users to view, enter, change data directly in the table.
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Short answer, from a DBA's point of view - Each person who logs into the database. A DB system is there to provide data to the end user. If users can't get their data the database is useless. "Important", in this case, is an extremely subjective term.
In a database management system, data can be viewed in three main ways: Conceptual view: Represents the overall framework or structure of the entire database. External view: Shows a subset of the database and is tailored to meet individual user requirements. Physical view: Describes how data is stored on the physical storage media.