Table.Pivot

Sintaxis

Table.Pivot(table as table, pivotValues as list, attributeColumn as text, valueColumn as text, optional aggregationFunction as nullable function) as table

Acerca de

Dado un par de columnas que representan parejas atributo-valor, rota los datos de la columna de atributo en los encabezados de columna.

Ejemplo 1

Tome los valores "a", "b" y "c" en la columna de atributo de la tabla ({ [ key = "x", attribute = "a", value = 1 ], [ key = "x", attribute = "c", value = 3 ], [ key = "y", attribute = "a", value = 2 ], [ key = "y", attribute = "b", value = 4 ] }) y dinamícelos en su propia columna.

Uso

Power Query M

Table.Pivot(
    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]
    }),
    {"a", "b", "c"},
    "attribute",
    "value"
)

Salida

Power Query M

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

Ejemplo 2

Tome los valores "a", "b" y "c" en la columna de atributo de la tabla ({ [ key = "x", attribute = "a", value = 1 ], [ key = "x", attribute = "c", value = 3 ], [ key = "x", attribute = "c", value = 5 ], [ key = "y", attribute = "a", value = 2 ], [ key = "y", attribute = "b", value = 4 ] }) y dinamícelos en su propia columna. El atributo "c" de la clave "x" tiene varios valores asociados, por lo que debe usar la función List.Max para resolver el conflicto.

Uso

Power Query M

Table.Pivot(
    Table.FromRecords({
        [key = "x", attribute = "a", value = 1],
        [key = "x", attribute = "c", value = 3],
        [key = "x", attribute = "c", value = 5],
        [key = "y", attribute = "a", value = 2],
        [key = "y", attribute = "b", value = 4]
    }),
    {"a", "b", "c"},
    "attribute",
    "value",
    List.Max
)

Salida

Power Query M

Table.FromRecords({
    [key = "x", a = 1, b = null, c = 5],
    [key = "y", a = 2, b = 4, c = null]
})