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What Is Multi-valued Dependency? |
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Answer» A multi-valued dependency is the situation when an attribute (ASSUME B) is dependent on another attribute (assume A). However, there are MULTIPLE rows in a table representing the dependency. This situation can happen when there is at least one more attribute which is dependent on A and it requires to have multiple rows of A and B to represent all the POSSIBLE COMBINATIONS. A multi-valued dependency is represented by A->> B. A multi-valued dependency is the situation when an attribute (assume B) is dependent on another attribute (assume A). However, there are multiple rows in a table representing the dependency. This situation can happen when there is at least one more attribute which is dependent on A and it requires to have multiple rows of A and B to represent all the possible combinations. A multi-valued dependency is represented by A->> B. |
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