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Relational databases are: 1) Two-dimensional tables which can be joined in only one way. 2) Three-dimensional tables allowing increased data relationships. 3) Two-dimensional tables which

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Relational databases are: 1) Two-dimensional tables which can be joined in only one way. 2) Three-dimensional tables allowing increased data relationships. 3) Two-dimensional tables which can be joined in many ways. 4) Either two- or three-dimensional as defined by the user

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