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Results tagged with index
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user 72612
A database structure that can improve the speed of queries at the cost of disk space and slower inserts/updates. It stores a copy of one or more columns sorted but structures the data differently to allow faster access.
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DB2 XML indexes and "ORDER BY" clause
"XML Index") differ from relational indexes in several ways. They are used to identify documents and the position of the nodes within for the indexed pattern. … For a relational index each row is indexed, for an XML index there might be zero, one or more matches per document (which is stored as part of a relational row). …
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