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Explain I command in QBE ? I : It is the command in QBE that is used to insert tuple (s) into the database
Explain Dynamic Two-Phase Locking Here a transaction locks a data item instantly earlier than any operation is applied on the data item. After finishing all the operations on
What are aggregate functions? And list the aggregate functions supported by SQL? Aggregate functions are functions that take a collection of values as input and return a one va
What are axioms? Axioms or rules of inference give a simpler technique for reasoning about
Illustrate the Deployment Diagram A deployment diagram shows all nodes on network, their processor execution and interconnections. In a dynamic model, this is used to represen
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
Describe multi key files
Describe the statement in SQL which allows to change the definition of a table? In SQL Alter statement is used to allow the changes the definition of a table.
Why containment is important in oosystems? Containment is an significant concept in oosystems because it allows dissimilar users to view data at different granularities.
What is average response time? The average response time is that the average time for a transaction to be done after it has been submitted.
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