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System Design: An Object Oriented Approach
Any software systems always try to change and evolve as technology and business rules evolve. The development of information systems is unavoidable and it is a natural phenomenon. Organisations require to support systems evolution to take benefit of new technology and to address changing business rules. The evolutionary nature of software products requires us to maintain products with their repeatedly changing nature.
Not every software product developed is adaptable to these fast changes. In this fastly-increasing competitive business environment, there is hardly left any option instead of adopting technology that is adaptable to changes.
Which sorting technique is used to sort databases, whose sizes are very big? Give one such algorithm. Why do sorting techniques like quicksort, insertion sort, etc. not applied
What is a PROJECT operation? The project operation is a unary operation that returns its argument relation with particular attributes left out. Projection is shown by pie (π).
Describe sequential file organization. Explain the rules for (i) Inserting a new record. (ii) Deleting an existing record. Ans:A sequential f
Oracle & Distributed Databases 1. Differentiate between PL/SQL functions and procedures. 2. Draw the diagram of logical structure of oracle database and explain it in brief.
The database will enable college administrators the ability to track students initial major. This will help college officials decide how best to prepare students for their goals an
Write a short note on QBE? Stands for "Query By Example." QBE is a feature involved along with various database applications which gives user-friendly techniques of running da
Draw the precedence graph of the following schedule and determine whether the schedule is serializable. (Note that all instructions, except lock and unlock, are omitted. We assume
Explain outer join? Outer Join - If there are any values in one table which do not have corresponding value(s) in the other, in an equi-join which will not be chosen. Such ro
Smart Alex Catering Sevice (SACS) is a company offering top class catering staff for prestigious events. The company employs approximately 200 hourly paid contact staff - chefs,
Define the basic operations of the relational algebra? Ans: Basic operators of relational algebra are: 1. Union (∪) - Selects tuples which are in either P or Q or in bot
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