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Differentiate between a subquery and a join
If we need to acquire information from one or more tables after that either subquery or join can be used. If the columns which are to appear in the result table are from different tables after that a join must be employed.
Security And Integrity After Reading the concepts of database recovery in the last section, let us now deal with a vital concept that helps in minimizing consistency errors in
3. (10 points) Assume that you have been presented with the following relation for the Baxter Aviation database: Charters (Pilot#, Pilot name, Aircraft ID#, #seats, Village, Fligh
what problems are raised by the database? why is it so controversial? why is data quality an issue?
Gyan Gurukul is a software company that provides software related solution. Ashutosh Dubey who is the director of Gyan Gurukul want a three-level schema architecture for the Gyan G
Determine the benefits of Object oriented design OOD also gives reusability, which saves time, costs and productivity gains through direct mapping to properties of Object-Orie
In E-R Diagram how relationship type is represented ? In E-R Diagram relationship type is represented as a Diamond.
What does conceptual design work? A conceptual design involves modelling independent of the DBMS.
domain
Define Database layer? The database layer defines the data formats used in the database.
er diagram on cosmetics.
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