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Question 1 Suppose the employee employee id, name, designation, salary, attendance and address of any employee has to be stored in a database. You can store these data in a sequen
draw er diagram using entities crop,employee,department,plot,cultivation plan,machinery,seed,fertilizer
Describe relational model? Structure of relational data base Basic structure Database schema Keys Schema diagram Query languages
Consider entity type Employee with attributes empNumber (this is unique), empName, and the year when he/she was hired. An employee can either be a technical employee, a marketing e
What is a virtual table that draws its data from the result of an SQL SELECT statement? View is a virtual table that draws its data from the result of an SQL SELECT statement.
What is nested relational model? The nested relational model is an extension of relational model in which domains might be either atomic or relation valued.
Find the names of all Albums that have more than 30 tracks. Result: (name: varchar(255))
The physical location of a record is determined by which mathematical formula that transforms a file key into a record location? The physical location of a record is determined
i need help for assignment ..
Draw the precedence graph of the following schedule and determine whether the schedule is serializable. (Note that all instructions, except lock and unlock, are omitted. We assume
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