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What is meant by heuristic optimisation?Discuss the major heuristics that are applied during query optimisation.
Explain the use of constraints in functional model with suitable example. A constraint shows relationship between two objects at same time, or among various values of the sam
draw er diagram using entities crop,employee,department,plot,cultivation plan,machinery,seed,fertilizer
We have a buildup of payments that need to be processed. You will need:- To prepare customer account on our site Process payment (you must have working Paypal account to d
Explain TPS concurreny executions stating their advantages in online business advancement
What are the benefits of decomposing a system? The benefits of decomposing a system into subsystems are that after decomposition, each individual component become smaller and e
Determine the term- Active values An active value is that has dependent values. Every dependent value registers itself with active value that contains a set of dependent values
Define data model? A data model is a collection of conceptual tools for explaining data, data relationships, data semantics and consistency constraints.
WHERE and HAVING clause in SQL ? The WHERE clause is commonly used for implementing conditions on each tuple of the relation. The HAVING clause is used in combination along wi
Differentiate between Primary and secondary storage? Primary and secondary storage - Primary storage device stores the data temporarily. Primary storage is commonly used thro
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