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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.
comparison of oracle RDBMS with MySQL
Explain the term - Handling Boundary Condition These are some circumstances that to be handled in any system initialization and termination. Describes how system is bro
What are the differences among MySQL_fetch_array(), MySQL_fetch_object(), MySQL_fetch_row()? Mysql_fetch_object returns the result from the database like objects while mysql
Benefits of heap files 1. This is a easy file Organisation method. 2. Insertion is somehow capable. 3. Good for bulk-loading data into a table. 4. Best if file
What is meant by mean time to failure? The mean time to failure is the amount of time that the system could run continuously without failure.
Explain the term- signal-to-noise ratio A signal-to-noise ratio of 20 dB means that S/N = 100. As log2101 is around 6.658, the Shannon limit is around 19.975 kbps. The Nyquist
What is known as sequential file organization? In the sequential file organization, the records are kept in sequential order, according to the value of a "search key" of every
Explain the function of Object model Object model describes the classes of objects in system, including their attributes and operations which they support. The analysis object
explain external view
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
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