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Compute the closure (F+) for the following set of the functional dependencies defined on R(a,b,c,d), where F - {c→a, ab→d, a→b, d→c}, i.e. what are all of the FDs implied by F (Hint; there's 24 of them).
File Organisation In Dbms Introduction Databases are used to store information. Usually, the principal operations we have to perform on database are those relating to:
Give some encryption techniques? A) DES B) AES C) Public key encryption
complete assignment on the above title.
What is conceptual model ? A conceptual model is a independent of both hardware and software.
Query Processor The query language processor is responsible for taking query language statements or shifting them from the English-like syntax of the query language to a form
BCNF Boyce-Codd Normal Form A relation schema R is in BCNF if it is in 3NF and accepts an additional constraint that for every FD X A, X has to be a candidate key. If a relati
Describe multi key files
Write short notes on relational model The relational model uses a collection of tables to show both data and the relationships between those data. The relational mo
Explain Clustering file organization (i) Determine if a record of file is physically ordered on a nonkey field - that does not comprise a different value for each record - that
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