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In which form of relational database developer refers to a record? In a tuple form of relational database developer refers to a record.
what are the reasons having variable length records
What do you mean by atomicity and aggregation? Atomicity : Either all actions are carried out or none are. Users should not have to worry about the effect of incomplete trans
a brief definition
How is concurrency identified? Concurrency in objects can be identified by the way they alter their state. Current objects can change their state independently. Aggregation imp
Consider the following relational schema: Doctor(DName,Reg_no) Patient(Pname, Disease) Assigned_To (Pname,Dname) Give expression in both Tuple calculus and Domain calculus for
What is the role of a database administrator?
What is schema
#question.explain diversity and magnitude of organic compounds and general properties?
What is the way a particular application views the data from the database that the application uses? Sub schema is the way a particular application views the data from the data
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