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Difference between Operating System and Database Security Security within the operating system can be executed at various levels ranging from passwords for access to system, t
explain exhaustively the problems associated with ER diagrams. include illustrations in your answer
What is an Index? An index is a small table having only two columns. The first column has a copy of the primary or candidate key of a table and the second column having a set o
Define access time. Access time is the time from when a read or write request is issued to when data transfer starts.
The need for three level architecture The aim of the three level architecture is to divide each user's view of the database from the way the database is physically shown.
Greater potential for bugs: Since the sites of a distributed system operate simultaneously, it is more complex to ensure the correctness of algorithms. The art of constructing dis
Consider an information system designed for an online company which provides IT products and services. These include desktops, laptops, networking products, IT books, parts, and te
With the help of a diagram defines the typical element modules of a DBMS? The functional elements of a database system can be widely divided into: 1) Storage manager and 2) q
A file of employee have 10,000 blocks on a cylinder of a disk with characteristics r=8ms and btt=0.6ms I want to know the cost of read inthe file under following conditions for a q
Which of the operations constitute a basic set of operations for manipulating relational data? Relational algebra operations constitute a basic set of operations for manipulati
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