When the index name is not specified, optimizer picks the cheapest single XML index access plan.

如果未指定索引名，优化器将选用成本最低的 XML 索引访问计划。

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An index only scan is an index access that is not followed by a table access because the index itself contains all the requested data.

仅扫描索引是未包含表访问的索引访问，因为索引本身包含了所有被请求的数据。

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Now that the view injects the filter predicate at the SQL level, DB2 can take advantage of the usual database techniques, that is index access.

现在，该视图在sql级注入过滤谓词，DB 2可以利用通常的数据库技术，即索引访问。

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There are some non-industry organizations that have made massive strides in pharmaceutical transparency, such as the Access to Medicines Index, funded by the Gates Foundation.

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What they will find is a richer experience that offers granular insight into fitness, sleep and food patterns, a real-time updating social feed, a dynamic emoticon, usage insights and access to a searchable caloric index.

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The index combines five measures: available resources, access to water, people's capacity to afford and organise water supplies, use of water for domestic, industrial and environmental purposes, and environmental management.

ECONOMIST: Measure for measure | The