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Define query optimization. Query optimization refers to the process of search the lowest -cost method of evaluating a given query.
Determine the OBJECTIVES of object design After passing through this unit, you should be able to: describe and apply concept of generalisation; understand and appl
QUESTION (a) Give two advantages of using Linked List as compared to arrays. (b) (i) You are working as programmer at the Orange Mauritius branch. You have been asked to cre
Attributes and its types explain?
Hashed File Organisation Hashing is the most common form of purely random access to a database or file. It is also used to access columns that do not have an index as an optimi
client server architeutre
Section A: Use the following tables to create a database called College. Use SQL commands. Student stuid(primary) lastName firstName
Logical Operators Rules of Precedence: Order evaluated Operator 1 All comparison operators 2
Define outer union operation of the relational algebra. Compute the outer union for the relations R and S given below. Outer Join - If there are any values in one tabl
What is authorization graph? Passing of authorization from single user to another can be shown by an authorization graph.
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