使用英语阅读

通过


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]
})