Because this method has to sort all joining tables before they join, the costs are usually pretty high.

因为该方法在进行表连接之前，必须将所有的连接表分类，所以其成本通常极其高。

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This join method is usually used when no index is available on the join columns for the joining tables.

当连接表的连接列上没有可用索引时，通常使用该连接方法。

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The final article in this three-part series covers other ways of cross-referencing data, including joining tables.

三篇文章组成的系列中的最后一篇文章，将会讨论交替引用数据的其他方式，包括交接表格 。

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Before joining the Colorado Stars, Schmitz tended bar, waited tables and ran a lawn-mowing business.

WSJ: Missy Franklin: How Not to Ruin a Swimming Prodigy

Wells Mason's chairs, benches, and tables are simultaneously playful and--with their stark joining of organic and man-made materials (such as the Baltic birch, stainless steel, and fiberboard embedded in a telephone pole in the Shelf Life chair, bottom)--aesthetically and intellectually challenging.

FORBES: Above photo courtesy of John Langford