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The Logical DBMS Architecture
Database Management Systems are very difficult, sophisticated software applications that give reliable management of huge amounts of data. To explain general database concepts and the structure and capabilities of a DBMS better, the structural design of a typical database management system should be studied.
There are two dissimilar ways to look at the architecture of a DBMS: the physical DBMS architecture and the logical DBMS architecture. The physical architecture is deals with the software components that create up a DBMS while the logical architecture deals with the way data is stored and presented to users.
Explain data independence ? Data independence is the capacity to modify the schema at one stage of a database system without having to change the schema at the further level.
describe objectivde of file organisation
Question (a) Differentiate between the following terms: (i) Distributed Database v/s Distributed Database management System (ii) Homogeneous Distributed Database v/s Hete
Identification of concurrency Identification of concurrency: Dynamic model identifies concurrency. Two objects are said to be parallel (concurrent) if they can receive events a
Define Join and Outer Join and differentiate between them. Ans: Join - It generates all the combinations of tuples from two relations which satisfy a join condition. Oute
In case of entity integrity, the primary key may be declared? In a case of entity integrity primary key may be not Null.
deffine class&object
Describe the tools that are available for managing MySQL Server. Given below are the tools to manage MySQL server: mysqld - MySQL server daemon. This is used to begain t
Breaking into Subsystems Decomposition is a significant technique for coping with complexity based on idea of divide and conquers. In dividing a problem into sub problems, the
It defines that no primary key value can be null. This is as the primary key is used to recognize individual tuple in the relation. So we will not be able to recognize the records
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