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Clustering Indexes It may be an excellent idea to keep data of the students in the order of the programme they have registered as most of the data file accesses may need studen
Define the term Domain. For each n every attribute there is a set of permitted values known as the domain of that attribute.
What are the basic objects of the data dictionary? Tables Domains Data elements Structures Foreign Keys
Data Redundancy -A lot of information is being repeated in the relation. For instance, the information that MCS-014 is named SSAD is repetitive, address of Rahul is "D- 27, Main ro
The Transactions- A transaction is definite as the unit of work in a database system. Database systems that deal with a huge number of transactions are also termed as transaction p
job scheduling for different cubes
Draw an ER diagram that shows the organization of a simple student database. The database captures the information about letter grades obtained by university students who enrolled
Give the levels of data abstraction? There are three levels of Data Abstraction a) Physical level b) logical level c) view level
Differance between DDL and SDL? DDL and SDL - The data definition language (DDL) is used through DBA and database designers to describe internal schema, conceptual schema, and
What is the meaning of Data Independence ?
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