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Amelia Sanchez——Studied at the University of Vienna, Lives in Vienna, Austria.
A superkey is a combination of columns that uniquely identifies any row within a relational database management system (RDBMS) table. A candidate key is a closely related concept where the superkey is reduced to the minimum number of columns required to uniquely identify each row.read more >>+119962023-05-12 13:41:57
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