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What is catalog in DBMS? Catalog - A relational DBMS maintains information about every table and index in which it contains. A catalog is a collection of special tables that st
What is schema
Database Administrator One of the main perpose for having the database management system is to have control of both data or programs accessing that data. The person having li
In E-R diagram how generalization is represented? in E-R diagram generalization is represented by Triangle shape.
What is the difference among a database schema and a database state? The collection of information stored in database at particular moment in time is known as database state a
Determine the Strong and Weak Entity Based on the method of foreign key, there might be arise a situation when we have to relate an entity having a primary key of its own and a
Question (a) Concurrent access to data from a database is a normal part of application program usage. Describe three approaches to concurrency control (b) Distinguish among
The indices are accumulated in the index files. The data is accumulated in the data files. Indices give fast access to data items. For example, a book database may be managed in th
What is Foreign Key Foreign Key: Sometimes we may have to work with an attribute that does not have a primary key of its own. To recognize its rows, we have to use the primar
Which component is not included in database environment ? A users component is not included in database environment.
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