what is key key - a single attribute or a
What is key ?
Key - A single attribute or a combination of two or more attributes of an entity set which is used to recognize one or more instances (rows) of the set (table) is called as key.
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if the cost benefits of interest rate swaps would similarly be arbitraged away in competitive markets what other descriptions exist to explain the
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consider the following relational schema person ss name address car registrationnumber year model accident date driver carregno owns ss
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what is key key - a single attribute or a combination of two or more attributes of an entity set which is used to recognize one or more instances
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explain candidate keycandidate key - a candidate key is a minimal superkey that can be used to uniquely identify a tuple in the
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explain alternate keyalternate key - all the candidate keys except primary key are known as alternate
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