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Consider the following frequency counts of some itemsets in a transaction database r : freq({A}, r) = 0.405 freq({B}, r) = 0.510 freq({C}, r) = 0.303 freq({A
How to create values of structured type? Constructor functions are used to make values of structured types. A function with the similar name as a structured type is a construct
i need help with creating database system for a library
Consider a typical sales invoice that would include the following information. Design a single table to hold all of the information required to store an invoice including this info
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What is 2NF? A relation schema R is in 2NF if it is in 1NF and every non-prime attribute A in R is fully functionally dependent on primary key.
online eductional management system ke diagram
Explain Thomas' Write rule. Show how it is different from timestamp ordering protol Ans: In timestamp-based concurrency control the thomas Write rule is a rule. Given a Timest
Analyzing Association Traversal Association Traversal shall be understood properly for the association design explanation. Analyzing association traversal means analyzing tra
What is a candidate key? Minimal super keys are known as candidate keys.
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