Table.Unpivot
Table.Unpivot(table as table, pivotColumns as list, attributeColumn as text, valueColumn as text) as table
Convierte un conjunto de columnas de una tabla en parejas de atributo-valor, combinado con el resto de los valores de cada fila.
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]
})