Group By Columns的意思|示意

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按列分组


Group By Columns的网络常见释义

区建立小计用 以文本方式查看主题 ... Order By Columns区是可选的,如果你留下这个区空着,结果表就不被排序。如果你在这在区输入一个列名,MapInfo就根据那个列的内容对结果表进行排序。 Group By Columns区(按列分组)建立小计用 SQL Select对话框中Group By Columns区是可选的。如果你在这个区输入一个或多个列名,结果表将含有这个表的小计(Subtotals),或集合信息。 ...

的例子 Group By Columns的例子(按列分组的例子) Group By Columns:Seles_Rep(这意味着按销售代表统计) ..

Group By Columns相关例句

Because XML columns cannot participate in Group By clauses, you need to define a second XML Relational Mapping operator (shown on the upper branch of Figure 1).

因为xml列不能参与group By子句,所以需要定义第二个XML Relational Mapping操作符(图1中上方的分支)。

The group by clause can be used in a SELECT statement to collect data across multiple records and group the results by one or more columns.

GROUP BY子句可用在SELECT的多条结果中选择数据并且将数据组织成一列或几列。

All of the SQL expressions for any attributes that were selected as columns in the select clause should also be in the GROUP BY clause.

对于作为select子句中的列的任何属性,它们的SQL表达式也应该放在GROUP by子句中。

When you choose the GROUP BY option or add an aggregate function to a query, all columns marked for output or used for sorting are automatically added to the GROUP BY clause.

当选择“分组依据”选项或将聚合函数添加到查询中时,所有标记为输出或用于排序的列将自动添加到GROUP by子句中。

You can sort the columns in the Resolve Conflicts dialog box to make it easier to group by conflict type or by path.

可以在“解决冲突”对话框中对这些列进行排序,以便更容易地按冲突类型或路径进行分组。

The partitioning key should be made up of columns that often participate in a GROUP BY clause.

分区键应该由常用于GROUP BY子句的列组成。