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Unformatted text preview: relational algebra and has been established as a standard in the business world where relational algebra has not. D2. What are the advantages (and/or disadvantages) of QBE compared to SQL? One advantage of QBE over SQL is that with QBE the user doesnt need to learn any SQL codes to generate a useful query. Another advantage of a QBE query also known as Query by Example is that it is easy for the user to create a query because it is more of a point and click application. One disadvantage of the QBE is that the user must understand exactly what the different elements of the QBE interface accomplish because if you do not ask the right questions you will not receive the right answer and it is possible that you may not even know that you have the wrong answer....
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- Summer '10