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Explain briefly concurrent task by taking an example.
Concurrent Task- The concurrent occurrence of more than one event is called concurrent task. Operating systems can handle concurrent tasks capably. The Air Traffic Control system (ATC) for examples, can manage simultaneous tasks in fractions of a second.
sql is relationally complete-justify
What are ways of finding out either an update is required or not for derived attributes? The ways to find out an update is required or, not are as: Explicit update
Define page. The database is partitioned into some number of fixed-length blocks, which are referred to as pages.
Improved Reliability: In a centralised DBMS, a server failure stops the operations of the DBMS. Though, a failure at single site of a DDBMS, or a failure of a communication link cr
how to implement hyrise in C plus plus
Insertion Anomaly: Inability to show certain information-The primary key of the over relation be (enrolment number, Cno). Any new tuple to be inserted in the relation should have
what is relationship inheritance and attribute inheritance
What is an entity relationship model? The entity relationship model is a collection of basic objects known as entities and relationship between those objects. An
Draw an ER diagram that shows the organization of a simple student database. The database captures the information about letter grades obtained by university students who enrolled
Define an operator that a Relational Algebra does not have Ans: Relational Algebra does not have Aggregation operators.
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