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What is vertical fragmentation? Vertical fragmentation divides the relation by decomposing the scheme R of relation r.
Compare the two log-based recovery schemes in terms of ease of implementation and overhead cost. Ans: There are two types of log based recovery techniques: deferred update
Using Relational Algebra which query finds customers, who have a balance of over 1000 ? Using Relational Algebra Π Customer_name( σ balance >1000(Deposit)) is query to find cu
A distributed transaction consists of subtransactions that execute at different sites and access local DBMSs at those sites. For example, a distributed transaction that transfers m
entity relationship diagram about finance
(a) Why did SAP introduce the extended star schema?
Q. Explain the terms key constraints participation constraints and mapping caradinalities in ER model. Participation Constraints : The participation of an entity set E i
Do you have experts of the dbms
Distributed Control and Data sharing: The geographical distribution of an organization can be showed in the distribution of the data; if a number of different sites are linked to e
I need help with data warehousing and business intelligence course project about designing a data warehouse for a jewelry company that does not have one
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