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Explain what is Aggregation ? Aggregation: This is used whenever we intend to show a relationship between an entity and the relationship. There is no provision for this in th
Which of the operations constitute a basic set of operations for manipulating relational data? Relational algebra operations constitute a basic set of operations for manipulati
A database administrator''s responsibilities and data contents
What is Relational Algebra? Relational algebra is a Procedural query Language?
What is an entity relationship model? The entity relationship model is a collection of basic objects known as entities and relationship between those objects. An
This constraint shows that the key attribute value in each tuple must be unique, i.e., no two tuples have the similar value for the key attribute. This is because the value of the
real life situations where database management system are most suitable
Differentiate between B-tree and B + tree Ans: A B-tree (or Balanced Tree) is a search tree along with additional constraints that makes sure that the tree is all the time
Explain the main advantages of DBMS over File Oriented System ?
What is the max. no. Of structures that can be included in a table or structure. Nine.
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