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What is storage manager? A storage manager is a program module that gives the interface between the Low level data kept in a database and the application programs
What are the drawbacks of File Oriented System in details?
What are the three data anomalies that are likely to occur as a result of data redundancy? Can data redundancy be completely eliminated in database approach? Why or why not? A
Software failures : In such cases, a software error abruptly stops the implementation of the current transaction (or all transactions), therefore leading to losing the state of pr
to develop elrctronic database from manual forms
What is first normal form? The domain of attribute must contain only atomic (simple, indivisible) values.
assignment
What is relational model feature? A relational model feature is much more data independence than some other database models.
Insertion Anomaly: Inability to show certain information-The primary key of the over relation be (enrolment number, Cno). Any new tuple to be inserted in the relation should have
what is Lossless-join decomposition
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