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Explain about database system structure?
Storage manager
Authorization and integrity manager
Transaction manager
File manager
Buffer manager
Storage manager executes several data structure as a part of physical system execution
Data function
Data dictionary
Indices
The query processor
DDL interpreter
DML
Query evaluation engine
compare the features of oracle RDBMS with MySQL and Microsoft SQL server
What are the two statements regarding transaction? The two statements regarding transaction of the form are:- A) Begin transaction B) End transaction
Should I select imaging software that allows changes? An imaging system should not give features to edit or alter images. Images generally are formed as safe and secure records
Type of views : Simple views and Difficult Views Feature Simple Views Complex Views Number of tables One
Designing the fields in the data base The following are the considerations one has to remain in mind while designing the fields in the data base. Coding, compression, en
Why a report generator is used ? Report generator is used for print files on paper.
What is substitutability? Any method of a class-say A can equally well be adjured with any object belonging to any subclasses B of A. This characteristic leads to code reuse, a
what is the importance of back up files
(a) Why did SAP introduce the extended star schema?
What are the requirements to ensure the objectives of file management principle is realized?
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