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List any two disadvantages of a database system ?
The disadvantages of database system are:• Database systems are difficult, complex, and time-consuming to design.• Substantial software and hardware start-up costs.• Damage to database affects virtually all applications programs.• Extensive conversion costs within moving form a file-based system to a database system.• Initial training needed for all programmers and users.
Explain the term - Adjustment of inheritance The inheritance can be enlarged as object design progresses by changing class structure. The designer should do: i) Adjust or r
explain in detail about time stamp orderting/
what is object-identity
Natural Join : It is the similar like Equi join except one of the duplicate columns is removed in the result table. The natural join is the most usually used form of join operation
What is document scanning and imaging? Document scanning and imaging, or digital archiving, is the method of scanning a document into a digital image to archive and retrieve a
What are the advantages of using a DBMS? The benefits of using a DBMS are a) Controlling redundancy b) Restricting unauthorized access c) Giving multiple user interfac
brief history,definition,current trends and future trends if any of data fragmentation
Create an entity relationship diagram, Database Management System
Describe the storage structure of indexed sequential files and their access method. Ans: Index offers a lookup capability to rapidly reach the vicinity of the desired record.
what is stracture of dabms
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