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The Basic 2PL:The basic two phase locking allows release of lock at any time after all the locks have been obtained. For instance, we can release the locks in schedule of Figure, after we have gone through the values of Y and Z in transaction 11, even before the display of the sum. This will increase the concurrency level. The basic 2PL is given graphically in Figure.
find a name whose address is erode from student table
Using the questions found at the end of Chapter 9 in your textbook, complete this homework activity. Students will submit a Word document answering questions 2, 3, and 4.
What is SQL Profiler? SQL Profiler is a graphical tool that permits system administrators to monitor events in an instance of Microsoft SQL Server. You can capture and save dat
Which two files are used during operation of the DBMS? Data dictionary and transaction log are two files used during operation of the DBMS.
This project will involve designing and creating a database for an organization. In the design of a database, there is no single "perfect" design. So your database design may not
sql is relationally complete-justify
Single Valued Normalisation Codd in the year 1972 formed three normal forms (1NF, 2NF, and 3NF). These were based on functional dependencies between the attributes of a relati
Database Errors: An error is said to have occurred if the implementation of a command to manipulate the database cannot be successfully finished either due to inconsistent data or
What is meant by heuristic optimisation?Discuss the major heuristics that are applied during query optimisation.
What is trigger? Triggers are statements that are executed automatically by the system as the side effect of a modification to the database.
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