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Write the syntax of creating an INDEX ?
Syntax of Creating an Index: CREATE [BITMAP] [UNIQUE] INDEX ON ( [, ] . . .);
what is er digram given that example of hospital,bank and library er digram.
What is deadlock? Neither of the transaction can ever proceed with its normal implementation. This situation is known as deadlock.
List two restrictions that are applied on the modification (updation, insertion or deletion) of base tables through view. Ans: The two restrictions are: 1. If a view
What subschema expresses ? A subschema expresses the external view. (External schemas are called also called as subschemas)
Explain the difference between optimistic locking and pessimistic locking. Optimistic locking supposes no transaction conflict will occur and deals with the consequences if it
What is data model? Explain object based and record based data models? Ans: A data model is an abstract model in which describes how data is represented and accessed. (i)
Question: (a) Prepare an ERD for the scenario given below. (b) Convert the ER diagram produced in (a) above into its physical design. You have to choose an appropriate Pri
Design a gennalization and specialization hierarchy for an automobile sales company
What is Normalization? Database normalization is a data design and organization method applied to data structures based on rules that help building relational databases. In rel
Multilevel Index The Multilevel Index is a modification of the secondary level index system. In this system we might be use even more number of levels in case the table is eve
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