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Problem
1 Why are the operational system keys not recommended for forming data warehouse primary keys? Give any two examples
2 Explain the following performance tuning techniques
3 What is repository? How is it helpful to the data warehouse maintenance?
4 Explain the following strategies for Data Warehouse testing
#ques 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 p
we need example of 2phase locking
First Normal Form and second normal form First Normal Form (1NF) A relation is said to be in 1NF if it having no non-atomic values and each row can give a unique combinat
A software contract and consultancy firm maintains details of all the various projects in which its employees are currently involved. These details comprise: Employee Numbe
Explain the uses of deadlock It will lead to deadlock since this is the only place where incoming acknowledgements are processed. Without this code, sender will keep timing ou
does tables are called relations
what is RDBMS? how it works? good example.
Selective replication: This is a combination of generating small fragments of relation and replicating them rather than a entire relation. The data should be fragmented on require
Can a stored procedure call itself or recursive stored procedure? How much level SP nesting is possible? Yes. Because Transact-SQL supports recursion, you can write kept proced
what do you understand by enhanced entity-relationship
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