Abstract
Just as SQL is a language for manipulating relational databases, MDX (Multi-Dimensional eXpressions) is a language for defining and querying multidimensional databases. Although at first sight it may appear that MDX resembles SQL, they are significantly different from each other. While SQL operates over tables, attributes, and tuples, MDX works over data cubes, dimensions, hierarchies, and members (at the instance level). MDX is a de facto standard supported by many OLAP tool providers.
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© 2014 Springer-Verlag Berlin Heidelberg
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Vaisman, A., Zimányi, E. (2014). Querying Data Warehouses. In: Data Warehouse Systems. Data-Centric Systems and Applications. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-54655-6_6
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DOI: https://doi.org/10.1007/978-3-642-54655-6_6
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