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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
What is known as clustering file organization? In the clustering file organization, records of several dissimilar relations are stored in the similar file.
Scenario 1: Power goes out after the first instruction. What happens?
Explain the Cartesian product: The Cartesian product operation does not need relations to union-compatible. The meaning of this is that the involved relations may have dissim
joins
What will be create when a primary key if combined with a foreign key? A primary key if combined with a foreign key it creates Parent-Child relationship between the tables that
explain cascading rollback
Differentiate between Primary and secondary storage? Primary and secondary storage - Primary storage device stores the data temporarily. Primary storage is commonly used thro
Explain the systems development life cycle. This is the traditional method to develop, maintain, and replace information systems that contains the project identification and se
Find a 3NF decomposition of the following relation scheme: University (Faculty, Dean, Department, Chair, Professor, Rank, Student}. The University relation satisfies the following
Create table employee and enter employee data in SQL? Consider the following relational schemas: EMPLOYEE (EMPLOYEE_NAME, STREET, CITY) WORKS (EMPLOYEE_NAME, COMPANYNAME, SAL
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