The relational set operators UNION, INTERSECT, and MINUS work properly only if the relations are union-compatible. What

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The relational set operators UNION, INTERSECT, and MINUS work properly only if the relations are union-compatible. What does union-compatible mean, and how would you check for this condition?

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Database Systems Design Implementation and Management

ISBN: 978-1285196145

11th edition

Authors: Carlos Coronel, Steven Morris

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Question Posted: Dec 03, 2014 08:56 AM

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The relational set operators UNION, INTERSECT, and MINUS work properly only if the relations are union-compatible. What

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Union compatible means that the relations yield attributes with identical names and compatib...View the full answer

Database Systems Design Implementation and Management

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