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Explain differance between Primary and secondary storage ?
Computer storage is classified within primary(main) memory and secondary(peripheral) storage.a) Primary storage is commonly RAM; ~10ns access timeb) Secondary storage is commonly hard disk drives; ~10ms access timec) Secondary storage is a lot cheaper than primary, 3¢/Mb vs.$1/Mb.
a) Databases are stored in secondary memory, and large databases are manipulated in secondary storage.b) We required minimising disk accesses while accessing and manipulating databases.
Why 'AS' clause is used in SQL ? 'As' clause is used for Rename operation. ‘AS' clause is used in SQL for rename operation. (e.g., SELECT ENO AS EMPLOYEE_NO FROM EMP)
Design an algorithm to implement operations Each and every operation specified in the functional model could be formulated as an algorithm. The algorithm indicates how operat
Structure of Client Server Systems: In client/server architecture, clients show users who require services while servers give services. Both client and server are a combination of
What is the max. no. Of structures that can be included in a table or structure. Nine.
Which is a valid SQL type? A valid SQL Should be in CHARACTER it is should be NUMERIC and FLOAT.
PART MARKING: We will only mark TWO of the four questions below but you must submit answers to all four. We will choose the questions we mark randomly and we will supply you with
Q. State the Technique for converting a state diagram to code. i) Identify the major control path. Starting with first state, find the path from diagram that corresponds
What are the two methods for dealing deadlock problem? The two procedures for dealing deadlock problem is deadlock detection and deadlock recovery.
What are the DBMS languages? Briefly explain? Data Definition language (DDL):A database schema is specified through a set of definitions expressed through a special language
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
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