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explain normalisation
Removing a Synonym: DROP SYNONYM D30;
SELECT Statement This statement is used for retrieving information from the databases. It can be coupled with many clauses. Let us talk about these clauses in more detail:
random file orgnization
why are older data models are being replaced by new data models
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
How does the two phase protocol ensure serializability in database schedules? Ans: A transaction is termed to follow the two-phase locking protocol if all locking operations
What are the disadvantages of file processing system? The drawbacks of file processing systems are a) Data redundancy and inconsistency b) Complexity in accessing data
What is the role of a database administrator?
What is Foreign Key Foreign Key: Sometimes we may have to work with an attribute that does not have a primary key of its own. To recognize its rows, we have to use the primar
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