Table.Unpivot

Sintaxis

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

Acerca de

Convierte un conjunto de columnas de una tabla en parejas de atributo-valor, combinado con el resto de los valores de cada fila.

Ejemplo 1

Tomar las columnas "a", "b" y "c" de la tabla ({[ key = "x", a = 1, b = null, c = 3 ], [ key = "y", a = 2, b = 4, c = null ]}) y anule la dinamización en pares de atributo-valor.

Uso

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"
)

Salida

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]
})