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we need example of 2phase locking
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
Define the concept of generalization A generalization is relationship between specific kind of thing and general thing. It is also known as "is-a-kind-of" relationship. Inher
does tables are called relations
Describe the types of attributes? Types of attributes: An attribute's category determines the type of values that are permitted in the attribute. For instance, the value vers
, write the relational schema, and draw the new dependency diagrams. Identify the normal forms for each table structure you created
How to create a biological database based on viruses. How to decide which attribute should be there in the table and schema? How to identify the primary keys, foreign keys, domain,
tell me the functionality,advantages and disadvantages of student database
Synonyms It allows short names or alternative names for objects. Example : CREATE SYNONYM D30 FOR EMPD30; Now if we give command:
State the definition of association An association is a structural relationship which specifies that objects of one thing are connected with objects of another. In UML, asso
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