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What are the different approaches for database design?
There are two basic approaches for database design which are as follows:
Attribute driven: It compiles a list of attributes relevant to application, and normalizes the groups of attributes which preserve functional dependencies. Entity driven: It discovers entities which are meaningful to application, and describe them.
Give some encryption techniques? A) DES B) AES C) Public key encryption
List the table modification commands in SQL? A) Deletion B) Updates C) Insertion D) Update of a view
Transactions And Concurrency Management Introduction One of the main benefits of storing data in an integrated repository or a database is to permit sharing of it betwee
give me a diagram about physical or internal level
composite attribute
Explain the structure of well formed formulae in relational calculus. Ans: a. An atom is a formula b. If P1 is a formula, after that so are ¬P1 and (P1) c. If P1 and P2 a
Why were functional methods fashionable in early days? These are inspired directly by computer architecture and thus popular among computer scientist in early days. The divisio
why we fregment at all?
WHAT IS DATABASE TECHNOLOGIES
What is the most significant feature that does not directly map into programming language structures? Why? Association, since there are complex types of association, like as qu
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