Before access path selection, the DB2 optimizer transforms SQL statements into forms that are semantically identical, such as by using predicate pushdown or predicate transitive closure.

在选择访问路径之前，DB 2优化器将sql语句转换成语意上一致的形式，例如使用谓词下推或谓词传递闭包。

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Both the overall competency based approach and also the selection and manner of describing the detailed performance statements show a clear ISD parentage.

无论是整体竞争力基础的方法，还是选择和性能的详细图片的方式显示出跟教育技术有关。

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The first change is to set the search attribute for the selection based on the field name using some if statements.

第一个更改是使用if语句根据字段名设置选择列表的查询属性。

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Opening statements could begin June 11 if jury selection is completed by then.

WSJ: Jerry Sandusky Trial Begins as Nine Jurors Selected

As the UKSA say to Mr Cavanagh in a separate note, "the liberal selection and interpretation of statistics in speeches and political statements is something we have to accept".

BBC: Statistics and the art of political persuasion