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Need for Multiple Access Paths In practice, most of the online information systems need the support of multi-key files. For example, consider a banking database application hav
What is Outer join? They can be employed while we want to keep all the tuples in R, or all those in S or all those in both relations in the result of the JOIN in spite of of w
What is trigger Triggers are statements that are implemented automatically by the system as the side effect of a change to the database.
1) Define a job scheduling strategy that will meet business requirement of reporting availability by 6am CST for the following cubes? Show the job scheduling dependencies in a pict
What is association? Give an example of association Association is used for establishing relationships among classes. Association describe links among/between classes. For exa
Give Concurrent sub states diagram for the classroom and exam held. In Figure, simultaneous substrates have been taken. After passing Minor 1 test you could give Minor 2 test. T
Logical Operators Rules of Precedence: Order evaluated Operator 1 All comparison operators 2
How to draw an ER diagram to a finance companz
Define the Query optimisation The query parser commonly generates a standard initial tree to correspond to an SQL query, with no doing any optimization. Such type of a canonica
Why older data models are being replaced by new data modelling 100 words accepted#
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