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What are the advantages of Logical Databases?
It offers a simple-to-use selection screens. You can change the pre-generated selection screen to your needs. It offers check functions to check whether user input is finish, correct, and plausible. It offers reasonable data selections. It having central authorization checks for data base accesses.
please describe the data base management with the easy example &give the application?
give some example real-life situations where DBMS are most suiitabe
Define and differentiate between ordered indexing and hashing. Ans: Ordered indexing: To gain fast random access to records in a file, we can make of an index structure. Every
Data Control The data control mostly refers to commands that permit system and data privileges to be passed to several users. These commands are usually available to database admi
what is data link layer
Objectives After reading this unit you should be able to: Explain storage of databases on hard disks; Discuss the execution of various file Organisation techniques;
Optimistic Concurrency Control Is locking the only way to stop concurrency related problems? There exist some other ways too. One such way is known as an Optimistic Concurrency
Example: Consider the following relations: ROLLNO NAME ADDRESS COURSE_ID 100 Ka
What is view in SQL? How is it defined? Any relation that is not part of the logical model, but is made visible to a user as a virtual relation is known as a view. We descri
Hot Backup: Some sites cannot terminate the database while creating a backup copy of the files. The cold backup is not a reliable option. So different kinds of backing up database
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