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What does the cardinality ratio specify?
Mapping cardinalities or cardinality ratios state the number of entities to which another entity can be associated. Mapping cardinalities must be one of the following:
One to one
One to many
Many to one
Many to many
Define a property that is not a property of transactions? Ans: Concurrency is not a property of transactions
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Explain the term High level DML? High level DML A high-level or non-procedural DML permit the user to specify what data is needed without specifying how it is to be acquired.
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What are the object-oriented approaches Software systems which are designed with structured design methodology never support some of desired quality attributes for example reus
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