This will be executed when the selection criteria on PRODUCTLINE left blank.

当PRODUCTLINE上的选择标准留空时，将执行该查询。

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Create another data set called "ProductLine" and define the SQL query as follows.

创建另一个名为“ProductLine”的数据集，并将SQL查询定义如下。

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The report is grouped on PRODUCTLINE and has a total BUYPRICE for every category.

该报告按PRODUCTLINE分组，每个类别有一个总的BUYPRICE。

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