COMPUTER SCIENCE AND ENGINEERING
DATABASE MANAGEMENT SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following provides a tool to control and control access to a database?
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Edit students’ information when new students are admitted to the union
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Find all 12th graders who are good at Informatics
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Report at the end of the first semester of the number of good, good, average and weak students in the whole school, each class, and each block
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The database can be restored when the server station is down and no longer contains student data for the whole school.
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Explanation:
Detailed explanation-1: -A database management system (DBMS) is system software for creating and managing databases. A DBMS makes it possible for end users to create, protect, read, update and delete data in a database.
Detailed explanation-2: -Introduction to Database Security Oracle uses schemas and security domains to control access to data and to restrict the use of various database resources.
Detailed explanation-3: -Concurrent Execution in DBMS In a multi-user system, multiple users can access and use the same database at one time, which is known as the concurrent execution of the database. It means that the same database is executed simultaneously on a multi-user system by different users.
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