View matching for materialized outer-join views
A computer implemented system that facilitates view matching for outer join views comprises an interface component that receives at least one query that includes one or more outer join operators. A view matching-component converts the at least one query and outputs a substitute query expression. In...
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| Main Authors | , |
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| Format | Patent |
| Language | English |
| Published |
29.07.2008
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| Online Access | Get full text |
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| Summary: | A computer implemented system that facilitates view matching for outer join views comprises an interface component that receives at least one query that includes one or more outer join operators. A view matching-component converts the at least one query and outputs a substitute query expression. In accordance with one aspect of the subject invention, the view-matching component can comprise a normalization component that converts the at least one query and at least one materialized view into a normalized query expression and a normalized view expression. Furthermore, the view-matching component can include an analysis component that receives the normalized query expression and the normalized view expression, and a construction component that constructs the substitute query expression. |
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