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Define Physical and Logical independence
Ans: Physical data independence: The ability to modify physical level without causing application program to be rewritten.
Logical independence: The ability to modify logical level with no causing application program to be rewritten.
Explanation on Data Sharing?
What are the advantages of Logical Databases? It offers a simple-to-use selection screens. You can change the pre-generated selection screen to your needs. It offers check f
The State of NewYork certifies firefighters throughout state and keep track all of them, as well as of the state’s fire departments. Each fire department has unique department numb
Describe Data Manipulation language ? Data Manipulation Language (DML) - A data manipulation language is a language which enables users to access or manipulate data as organize
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write on the various type of relationalkey
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This project will involve designing and creating a database for an organization. In the design of a database, there is no single "perfect" design. So your database design may not
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