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Dependency Preservation It is obvious that the decomposition must be lossless so that we do not lose any information from the relation that is decomposed. Dependency preservati
Define the terms i) Entity set ii) Relationship set Entity set: The set of all entities of the similar type is termed as an entity set. Relationship set: The set of all rela
In an E-R diagram an entity set is represent by? In an E-R digram entity set is represted by rectangle.
List the types of authorization. A) Read authorization B) Write authorization C) Update authorization D) Drop authorization
Before defines the second type of integrity constraint, viz., Entity Integrity, we should be well-known with the concept of NULL. Mostly, NULL is intended as a basis for dealing
What is meant by normalization of data? It is a process of examining the given relation schemas based on their Functional Dependencies (FDs) and primary key to achieve the prop
Question 1 Explain the functions of the following Storage Manager Buffer Manager Transaction Manager 2 Discuss about system catalog in a relational DBMS 3
need a DBMS system on any data for assignment.
What is a primary index? A primary index is an index whose search key also explains the sequential order of the file.
East Coast Aquarium Relational Database
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