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Define object-relational systems?
Systems that give object-oriented extensions to relational systems are known as object-relational systems.
Explain Candidate key? Candidate Key - A candidate key is a minimal superkey, that can be used to uniquely identify a tuple in the relation.
What is the initial step for object-oriented designing The initial step for object-oriented designing is object modeling. Before we go into deep about object modeling first of
need a DBMS system on any data for assignment.
What is Hierarchical DBMS In HDBMS, data is structured in a tree like manner. There is a parent-child relationship between data items and the data model is very suitable for re
Illustrate how you can use QBE to perform logical AND and OR operation
What are the reasons for having variable length records? What are the various ways to store variable length records? Variable-length records arise in a database in various wa
A student entity type has the following attributes,name..
What is authorization graph? Passing of authorization from single user to another can be shown by an authorization graph.
Replication : It is definite as a copy of a relation. Every replica is stored at a dissimilar site. The alternative to replication is to store only single copy of a relation which
what is the need of a log in dbms
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