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What is a primary key? Primary key is chosen by the database designer as the principal means of identifying an entity in the entity set.
Define Hash files organization a. Hashing includes computing the address of a data item by calculating a function on the search key value. b. A hash function h is a functi
What is Index? An index is a physical structure having pointers to the data. Indices are created in an existing table to locate rows more quickly and efficiently. It is possibl
Define Fifth Normal form is concerned with Ans : Fifth Normal form is concerned with Join dependency.
#questiontypes of keys examples..
Question: a) Discuss the concept of data independence, explaining its importance in a database environment. b) To address the issue of data independence, the ANSI-SPARC t
Can a domain, assigned to a data element be changed? Yes. We can do so by just overwriting the entry in the field domain.
Describe Database state in details? Database state: The actual data within the database at a particular moment in time is known as a database state.
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