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Many-to-many : Entities in A and B are related with any number of entities from each other. Example: Taught_by Relationship among course and faculty. One faculty member ca
What is De-normalization? De-normalization is the method of attempting to optimize the performance of a database by adding redundant data. It is sometimes essential because cur
INSERT INTO command : Values can be inserted for all columns or for the selected columns Values can be given by sub query. In place of values parameter substitution
In which form of relational database developer refers to a record? In a tuple form of relational database developer refers to a record.
Define functional and multivalued dependencies. Ans: A functional dependency is a assets of the semantics of the attributes in a relation. The semantics point out how at
what is RDBMS? how it works? good example.
to develop elrctronic database from manual forms
Determine the steps of path in association network You can analyse use of paths in association network in the following steps: Examine every operation and see what asso
what is definition hierarchical data model
what is the relationship between receipt and owner entities in computer sales and service company
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