XMLAGG - column function that groups several elements within a parent element.
XMLAGG——将几个元素组成一个父元素的列函数。
Measures also have an aggregation function applied to the column or column expression.
度量还有一个应用于列或列表达式的聚合函数。
The left column tells you the bus, slot, and function of the card.
左边的一列告诉您总线、插槽和插件的功能。
You can add a new column to the table by defining a new function.
通过定义新的函数，您可以向表添加新的列。
In that function, you reset the column number because it isn't needed anymore.
由于不再需要列编号，故此函数将重置列编号。
Change the aggregate function of the column to Total.
将这个列的聚合函数改为Total。
The first column is the value of the position function.
第一列是position函数的值。
The value of the position function is shown in the first column.
position函数的值显示在第一列中。
The followpos function, which was explained in the previous column, was not implemented.
没有实现上一篇专栏文章中解释过的followpos函数。
The sum function returns the total sum of a column in a given selection.
使用SUM函数可以返回给定的选择中列的所有记录值的累计合。
The xml_get_current_column_number() function gets the current column number for an XML parser.
函数的作用是：从XML解析器中获取当前列数。
The xml_get_current_column_number() function gets the current column number for an XML parser.
函数的作用是：从XML解析器中获取当前列数。
应用推荐