Table.Unpivot

语法

Table.Unpivot(table as table, pivotColumns as list, attributeColumn as text, valueColumn as text) as table

关于

将表中的一组列转换为属性-值对，并与每行中的剩余值相结合。

示例 1

选取表 ({ [ key = "x", a = 1, b = null, c = 3 ], [ key = "y", a = 2, b = 4, c = null ] }) 中的列“a”、“b”和“c”，并将它们逆透视为属性-值对。

使用情况

Table.Unpivot(    Table.FromRecords({         [key = "x", a = 1, b = null, c = 3],        [key = "y", a = 2, b = 4, c = null]     }),    { "a", "b", "c" },    "attribute",    "value")

输出

Table.FromRecords({     [key = "x", attribute = "a", value = 1],    [key = "x", attribute = "c", value = 3],    [key = "y", attribute = "a", value = 2],    [key = "y", attribute = "b", value = 4] })