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Write short notes on transaction state?
A transaction may not always complete its implementation successfully such a transaction is termed aborted
A transaction must be in one of the following states
Active
Partially committed
Failed
Aborted
Committed
how draw er diagram
Assume that you are responsible for selecting a new DBMS product for Sohar Hospital
Distributed Database Management System
Define an operator that a Relational Algebra does not have Ans: Relational Algebra does not have Aggregation operators.
There are many simple and complex approaches to implement. These reports are based on some views or certain query. The following number of reports can be built. 1. The averag
Which sorting technique is used to sort databases, whose sizes are very big? Give one such algorithm. Why do sorting techniques like quicksort, insertion sort, etc. not applied
what is the importance of back up files
discuss the purpose of the concurrency control?
About Attribute inheritance
Design a database for an airline.The database must keep track of customers and their reservations,flights and their status, seat assignment on individual flights and, the schedule
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