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What does ROLAP mean? This page is about the various possible meanings of the acronym, abbreviation, shorthand or slang term: ROLAP.

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ROLAP

Relational On Line Analytical Processing

Computing » General Computing

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What does ROLAP mean?

ROLAP
ROLAP is an alternative to the MOLAP technology. While both ROLAP and MOLAP analytic tools are designed to allow analysis of data through the use of a multidimensional data model, ROLAP differs significantly in that it does not require the pre-computation and storage of information. Instead, ROLAP tools access the data in a relational database and generate SQL queries to calculate information at the appropriate level when an end user requests it. With ROLAP, it is possible to create additional database tables which summarize the data at any desired combination of dimensions. While ROLAP uses a relational database source, generally the database must be carefully designed for ROLAP use. A database which was designed for OLTP will not function well as a ROLAP database. Therefore, ROLAP still involves creating an additional copy of the data. However, since it is a database, a variety of technologies can be used to populate the database.

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