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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, Course and departments. The sets of all the students' entities form a entity set STUDENT. Likewise collection of all the courses creates an entity set COURSE.
Entity sets require not be disjoint. For example - an entity may be part of the entity set STUDENT, the entity set FACULTY, and the entity set PERSON.
What is an Operand? The data on which the operation is to be performed is known as an Operand
let us consider a table having 2200 records and the fixed size of the table to be considered as 25.then how many numbers of table is requredto perform horizontal fragmentation
I have one assignment that has to be done in neo4j
Benefits of Sequential File Organisation It is quick and efficient when dealing with huge volumes of data that require being processed periodically (batch system). Dra
Which language has presently become the defacto standard for interfacing application programs along with relational database system? The language which has recently become the
external and internal mapping with examples
Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department.
A file manipulation command that extracts some of the records from a file is called ? A file manipulation command that extracts some of the records from a file is called SELECT
explain participation constraints with examples
Determine Which is not a consequence of concurrent operations? Ans: Update anomaly.
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