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What subschema expresses ? A subschema expresses the external view. (External schemas are called also called as subschemas)
i need to submit in this topic.
Explain TPS concurreny executions stating their advantages in online business advancement
Representing complex relationship among data A database may contain varieties of data interrelated to each other in numerous ways. A DBMS must have the capability to represent
what are the limitations of dbms?
vertical fragmentation
what is RDBMS? how it works? good example.
In which form of relational database developer refers to a record? In a tuple form of relational database developer refers to a record.
What is hashing file organization? In the hashing file organization, a hash function is computed on some attribute of every record. The result of the hash function specify in
A Relation Schema represented by R(A1, A2, ..., An) is made up of the relation name the list of attributes and R Ai that it contains. A relation is described as a set of tuples
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