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Write a short note on oracle Instance?
Oracle Instances: An instance is the (executed) Oracle software and the memory they use. It is the instance which manipulates the data stored within the database. It can be begin independent of any database. It consists of:
1) A shared memory area which gives the communication among several processes.2) Upto five background processes that handled several tasks. Whenever an oracle examples starts, the file ‘INIT.ORA' is executed.
A step-wise distributed database design methodology Following is a step-wise methodology for distributed database design. (1) Examine the nature of distribution. Find out wh
Define value set? Value set: It is a set of values. You do not always need a user to enter junk free text within all the fields. Therefore, Oracle Apps uses value set to valida
Question 1 Create a table student with attributes student name, roll number, total marks and percentage. Do the following operations Insert details in to the table Update
Using your cache simulator and using smalltex.din as your memory trace determine the total miss rate, compulsory miss rate, capacity miss rate, and conflict miss rate for the follo
What is data model? Explain object based and record based data models? Ans: A data model is an abstract model in which describes how data is represented and accessed. (i)
Define the Query optimisation The query parser commonly generates a standard initial tree to correspond to an SQL query, with no doing any optimization. Such type of a canonica
Where does view definition stored? A view definition is permanently stored as part of the database.
Question : (a) Explain with the help of appropriate examples the difference between ‘Data' and ‘Information'. (b) A digital image is an array of pixels, where each pixel h
Types of data independence Data independence can be classified into the following two types: Physical Data Independence: This means that for any change made in the physi
Create an index for the table Client, field CLIENT_NO of Q ? Command: CREATE INDEX client_client_no ON client(client_no);
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