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Define query optimization.
Query optimization refers to the process of search the lowest -cost method of evaluating a given query.
Introduction In large projects, we can have many different companies working together. Generally, the project or contract is awarded to one company (Principal Contractor), which
Question: (a) What are the challenges in the development of Large Scale Distributed Real Systems? (b) What is backward engineering and forward engineering in a design packa
Describe the benefits of OOD techniques OOD techniques are very useful for development of large and complex systems. It has been noted that large projects that are developed u
Depending upon the rules we have found, we can classify the locks into two types. Shared Lock: A transaction might be acquiring shared lock on a data item in order to read it
What is first normal form? The domain of attribute must contain only atomic (simple, indivisible) values.
When a function module is activated syntax checking is performed automatically. YEs, a function module is activated syntax checking.
What is Object Oriented model? This model is based on collection of objects. An object has values stored in instance variables with in the object. An object also having bodies
a method named WonGame that checks each letter in the word is matched by its label
why shadow copy technique is used?
Physical Database Design Issues The database design includes the process of logical design with the use of E-R diagram, normalisation, etc., followed by the physical design.
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