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A database administrator''s responsibilities and data contents
Find the names of all Albums that have more than 30 tracks. Result: (name: varchar(255))
Three way to handle missing field val
projects?
Explain Transaction manager and their work? Transaction Manager: Ensure the database remains in a constant (correct) state despite system failure, and in which concurrent trans
Candidate Key: In a relation R, a candidate key for R is a subset of the set of attributes of R, which have the differnt two properties: (1) Uniqueness: N
What are the advantages of by using an index and what are its disadvantages ? In difference, if the search key of a secondary index is not a candidate key, it is not sufficient
Consider the following database containing five transactions. Let min_sup = 60%. Mine all frequent itemsets using Apriori and FP-growth algorithm. Compare the efficiency of the t
what is view?explain
as a customer service employee, explain five measures you would recommend a displeased student to patronise a school canteen
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