This plan USES two XISCANs, one for each predicate and index.

该计划使用两个XISCAN，分别用于每一个谓词和索引。

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If only one XML index is available, then DB2 cannot apply this guideline and will instead produce the cheapest alternative plan.

如果只有一个xml索引是可用的，那么DB 2将无法应用这个准则，因而将生成成本最低的替代计划。

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Tuning can include adding extra indexes to yield a more efficient access plan, which makes tables volatile to encourage index usage and avoid table scans if possible.

调优包括添加额外索引来生成一个更高效的访问计划，让表格变幻无常，进而鼓励索引的使用，如果可能的话也可以避免表扫描。

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It starts with a financial plan and is driven by your family index rate of return.

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Other shareholders that will cash out include Silver Lake Partners, Canada Pension Plan Investment Board, Andreessen Horowitz and Index Ventures.

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The plan offers you a broad selection of inexpensive index funds and ETFs, not just pricey active mutual funds.

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