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Load sample data into the database tables design and test queries to return the following information • All rows and columns for employees • All rows and columns for customers •
what is un ordered and ordered file managment?
What is meant by object identifiers? Object-oriented systems use an object identifier to recognize objects. Object identifiers are unique: that is every object has a single ide
Define rotational latency time. The time spent waiting for the sector to be accessed to appear under the head is known as the rotational latency time.
Higher Normal Forms Is there more normal forms beyond BCNF? Yes, though, these normal forms are not based on the concept of functional dependence. More normalisation is needed if
in case of functional dependencies how we get the higher normal form.
Explain the components of Database System in details.
Discuss the methods for a hash file to expand and shrink dynamically. What are the advantages and disadvantages of each? The hashing methods that permit dyanamic file expansi
Explain DML with some examples? DML - Data Manipulation Language: statements used for managing data within schema objects. Some examples: • SELECT - retrieve data from the a da
wrie a report on whether a BSc n information systems develops the skills required by employers in Database administration
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