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Consider the subsequent relations for a database which keeps track of business trips of salespersons in a sales office: SALESPERSON (SSN, Name, start_year, Dept_no) TRIP (SSN, Fr
What is a SELECT operation? The select operation selects tuples that please a given predicate. We use the lowercase letter σ to denote selection.
What Command You Use What Day of the week were you born
Function requirement as given: 1> manage fans and likes and followings those information from facebook. twitter. google+ and linkedin etc 2> Organize the clients from email m
Java program for horrizontal fragmentation in distributed database
Find the names of all Albums that have more than 30 tracks. Result: (name: varchar(255))
Which product produces the relation that has attributes of R1 and R2 ? Cartesian product produce the relation which has attributes of R1 and R2
What is OCR? OCR (Optical Character Recognition) is a technology that enables you to change different types of machine-readable documents, like scanned paper documents, PDF fil
What is a hash index? A hash index organizes the search keys, with their associated pointers, into a hash file structure.
What is authorization graph? Passing of authorization from single user to another can be shown by an authorization graph.
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