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Which is another name for weak entity?
Child is another name of weak entity.
write a short note on participation role? Participation role: roles are indicating in E-R diagram by labelling the lines that connect diamonds to rectangles.
Determine the Objectives of object oriented design provide an overview of object oriented design; partitioning system to subsystems; describe how a software desig
what is meant semantic query optimization? how does it differ from other query optimization techniques?
Describe the term- State Diagram State Diagram: An object could receive a sequence of the input instructions. The state of the object can differ depending upon sequence of in
The natural join is equal to which product? The natural join is equal to Combination of projection and Cartesian product
How many levels can be viewed in Architecture of the database ? Architecture of the database can be viewed as three levels.
Write short notes on domain relational calculus The domain relational calculus uses domain variables that take on values from an attribute domain rather than values for whole
Which is an advantage of view? The Advantages of view is Data security, Derived columns and Hiding of complex queries
Suppose R is a relation with attributes A1, A2,..., An. As a function of n, tell how many superkeys R has, if: 1.1 The only key is A1. 1.2 The only key is A1 and A2. 1.3 The o
Make SQL statements for the following scenarios. Your response should contain SQL statement, output and any other assumptions you have made to arrive at the answer. For Colorado cu
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