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Explain sorted File with advantages?
Sorted file The sort utility shall perform one of the subsequent functions:
1.Sort lines of all the named files together and write the result to the specified output.
2.Merge lines of all the named (presorted) files together and write the result to the exact output.
3.Check which a single input file is correctly presorted.
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
Mixed fragmentation: Sometimes, horizontal fragmentation or vertical fragmentation of a database schema by itself is insufficient to sufficiently distribute the data for some appli
What is the function of SQL Server Agent Windows service? - It's a Windows service that handles tasks scheduled within SQL Server environment. These tasks are also known as job
Differentiate between strict two-phase and rigorous two-phase with conversion protocol Ans: Strict two-phase locking holds all its exclusive that is write locks until commit t
What is system catalog or catalog relation? How is better known as? A RDBMS maintains a explanation of all the data that it contains, information about every relation and index
Discuss the count function? The COUNT function used returns the number of tuples or values fixed in a query. The count function comprises two types of syntax: (1) COUNT (*)
Explain the Weak Entity Set An Entity set which does not have sufficient attribute to make a primay key is known as weak entity set. For instance, dependents of an employee in
Lack of standards and experience: The lack of standards has considerably limited the potential of distributed DBMSs. As well, there are no tools or methodologies to help users cha
Explain the conventions (relationships) for displaying an ER schema as an ER diagram.
Define the five basic operators of relational algebra? Five basic operators of relational algebra are: 1. Union (∪∪∪∪) - Selects tuples which are in either P or Q or in both
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