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Give an example of multiple inheritance.
One example of multiple inheritance is a committee for students affair which include faculty and administrative staff member.
Figure: Multiple inheritance
What is Data dictionary? A data dictionary is a reserved space in a database that is employed to store information about the database itself. A data dictionary may consist o
What are the drawbacks of File Oriented System in details?
In an E-R diagram how attributes are represented ? In an E-R diagram attributes are represented in a ellipse.
what is query processing ,query optimization and performance turring?
case study
Describe a technique for direct search? Explain how data is stored within a file so which direct searching can be performed. For a file of unordered fixed length records by u
compare the features of oracle RDBMS with MySQL and Microsoft SQL server
What is trigger? Triggers are statements that are executed automatically by the system as the side effect of a modification to the database.
Using Relational Algebra which query finds customers, who have a balance of over 1000 ? Using Relational Algebra Π Customer_name( σ balance >1000(Deposit)) is query to find cu
What is an entity relationship model? The entity relationship model is a set of basic objects known as entities and relationship between those objects. An entity is a thing or
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