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First Normal Form and second normal form
First Normal Form (1NF)
A relation is said to be in 1NF if it having no non-atomic values and each row can give a unique combination of values.
Second Normal Form (2NF)
A relation is said to be in 2NF f if it is already in 1NF and each attribute fully depends on the primary key of the relation. Speaking inversely, if a table has some attributes which is not dependant on the primary key of that table, and then it is not in 2NF.
Load sample data into the database tables design and test queries to return the following information • All rows and columns for employees • All rows and columns for customers •
(a) Why did SAP introduce the extended star schema?
to develop elrctronic database from manual forms
imagery
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Question : (a) Differentiate between database integrity and database security (b) Database security involves measures to avoid loss of privacy and loss of confidentiality. D
deffine class&object
Implementing software control To implement software control designer must redesign strategy of state event model which is present in dynamic model. There are three basic ap
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