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What is system catalog or catalog relation? How is better known as?
A RDBMS maintains a explanation of all the data that it contains, information about every relation and index that it contains. This information is kept in a collection of relations maintained by the system called metadata. It is also known as data dictionary
What are advantages of object models? Object models are efficient for communicating with the application experts and reaching a consensus about the significant aspects of the p
) Define a job scheduling strategy that will meet business requirement of reporting availability by 6am CST for the following cubes? Show the job scheduling dependencies in a picto
Define what Immediate database modification technique uses? Ans: Both undo and redo.
Illustrate the class diagram for class room scheduling system If in any college, the number of classrooms are limited which have to be allocated to various classes and instruct
A collection of a same kind of entities is known as an Entity Set or entity type. Example: For the COLLEGE database defines earlier objects of concern are Students, Faculty,
The issues relating to the Design of the Physical Database Files Physical File is a file as stored on the disk. The major issues relating to physical files are: • Cons
A database to track your progress in your college program will track your progress towards graduation! A database that has information containing the classes that you have taken, c
Performance of Various Concurrency Control Mechanisms
A well-maintained relational DBMS has a high level of data integrity. What features of a relational DBMS contribute towards this level of integrity? Relational DBMS gives high
What is property - properties of a database ? It is an integrated collection of logically related records. It consolidates separate files into a common pool of data records and
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