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What is B-Tree?
A B-tree eliminates the redundant storage of search-key values .It permits search key values to appear only once.
What are the two types of errors? The two types of errors are: a) Logical error b) System error
A set of possible data values is called? A set of possible data values is called as domain.
Define functional and multivalued dependencies. Ans: A functional dependency is a assets of the semantics of the attributes in a relation. The semantics point out how at
Object-based Models: Use objects as key data representation components . Examples:- Entity-Relationship Model: It is a collection of real world objects known as entitie
why three level architecture had been developed/
What Is Recovery? During the life of a transaction, i.e., a after the start of a transaction but before the transaction commits, various changes may be made in a database state
what are the reasons having variable length records
What is Oracle databse structure? Oracle database structure: The relational model has three main aspects: Structures: Structures are well-defined objects which store th
What are audit trails? An audit trail is a log of all alters to the database along with information like which user performed the change and when the alter was performed.
Do you have experts of the dbms
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