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When It is better to use files than a DBMS? It is better to use files than a DBMS when Multiple users wish to access the data.
An instance of relational schema R (A, B, C) has distinct values of A including NULL values. then A is a candidate key or not? If relational schema R (A, B, C) has distinct val
Why did SAP introduce the extended star schema? Explain why it is reported to be better than the traditional schema model?
which component of DBMS can be embedded in a program? The data manipulation language (DML) is a component which is embedded in a program.
Question: (a) What is ODBC and what is its function? (b) What is Web application server, and how does it work from a database perspective? (c) What does e-commerce mean
What is an ERD?
The Conceptual Level or Global level The conceptual level presents a logical view of the complete database as a unified whole. It permits the user to bring all the data in th
database help
Explain Foreign Key? Foreign Key - Let there are two relations (tables) R and S. Any candidate key of the relation R that is referred within the relation S is known as the fo
Define canonical cover? A canonical cover Fc for F is a set of dependencies like F logically implies all dependencies in FC and Fc logically shows all dependencies in F.
What type of view of total database content? Data base content Conceptual view of total database contain.
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