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Explain the Fundamental concepts of object-orientation
Software developers, data base administrators (DBAs) need to be familiar with fundamental concepts of object-orientation. The object-oriented (OO) paradigm is a development strategy based on concept which systems should be built from a collection of reusable components known as objects. Instead of separating functionality and data as is done in structured paradigm, objects encompass both. While object oriented paradigm sounds similar to structured paradigm, but it is actually quite different. An ordinary mistake which many experienced developers make is to applying same software-engineering principles to OO design. To get success one must recognize that OO approach is different from the structured approach
Define single valued and multivalued attributes. Single valued attributes: attributes with a single value for a particular entity are known as single valued attributes. M
Example RELATION SCHEMA for STUDENT: STUDENT (Roll No: string, name: string, login: string, age: integer) RELATION INSTANCE
how draw er diagram
Explain the term- Periodic recomputation Periodic recomputation: Base values are often updated in bunches. Sometimes, it is possible to just recompute all derived attributes p
Describe queries with complex types? The present extension of the SQL query language deal with the complex type Let us start with the simple example: Find the title and t
QUESTION (a) Consider a car database consisting of car model, car make, car origin, Engine capacity, color, cost.
example of embedded SQL query
1. Based on the dependency diagram, create a database whose tables are in at least 2NF, showing the dependency diagram for each table (as shown in class). Label the types of depe
Whta is the advantage of the database management approach? The advantage of the database management approach is data is integrated and can be accessed by multiple programs.
Use a Set operator to create a list of academics who have written or co-written less than 5 papers and also have greater than 3 interests. List their academic number in the output.
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