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Construct a clean ans concise ER diagram for the database indicating the cardinality mapping for Employee management syatem
the of super market system done in database
What is a hash index? A hash index organizes the search keys, with their associated pointers, into a hash file structure.
Define a property that is not a property of transactions? Ans: Concurrency is not a property of transactions
Creating views with check option : This option limits those updates of data values that cause records to go off the view. The following instance tells this in more detail: Examp
Describe the two alternatives for specifying structural constraints on relationship kinds? Relationship kinds have certain constraints in which limit the possible combination o
Consider the following relational scheme: R (a,b,c,d,e,f) and its corresponding set of FDs {d→ a, be → c, ac → e, b → f, f → d, a → c}. a. Is the following decomposition i) non
Serialisability: Any schedule that makes the similar results as a serial schedule is known as a serialisable schedule. But how can a schedule are determined to be serialisable or n
Explain the cartesian product in Database Management System
explain thee diffrent types of data models
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