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(a) Why did SAP introduce the extended star schema?
, write the relational schema, and draw the new dependency diagrams. Identify the normal forms for each table structure you created
Describe logical data independence ? Logical Data Independence - It is the capacity to modify the conceptual schema without having to change external schemas or application p
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
What are the reasons of bucket overflow? Explain any two methods for solving this problem. Ans: It is general for file structures to be divided into equal-length partitions, k
I just purchased a document for you guys and wanted to confirm that it will be send within an hour or 2 to my email or where will document be sent to?
what is meant semantic query optimization? how does it differ from other query optimization techniques?
why are older data base model are being replaced by new data model
Which component is not included in database environment ? A users component is not included in database environment.
Consider a relation s over the attributes A and B with the following characteristics: 5,000 tuples with 10 tuples per page A 2-level B+ tree index on attribute
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