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With the help of a suitable diagram gives module wise explanation of system architecture of DBMS.on..
Define data conversion? Helpful to load data into temporary staging tables. Then can write SQL code to do much of data processing. SQL code is simpler and faster to write than
What are the types of reference?explain it with suitable examples? Object oriented language given the ability to refer the object attribute of the type can be referred to the s
Removing a Synonym: DROP SYNONYM D30;
Attributes that are directly kept in the data base. For example, 'Birth date' attribute of a person. Derived Attributes that are not stored directly but can be derived
normal forms
What are the General Transformation Rules for Relational operations? Ans: The transformation rules transform one relational algebra expression to AN EQUIVALENT ONE 1. E
Which method of access uses key transformation? A Hash method of access uses key transformation.
How does the system cope up with a record crash when recovery is going on after the first crash? Ans: In a system the undo and redo operations are needed to be idempotent to c
What is a relationship called when it is maintained between two entities? A relationship is called Binary relationship when it is maintained between two entities.
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