Table.Pivot

Syntax

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

About

Wandelt bei Angabe eines Spaltenpaars, das Attribut-Wert-Paare darstellt, die Daten in der Attributspalte in Spaltenüberschriften um.

Beispiel 1

Verwenden Sie die Werte "a", "b" und "c" in der Attributspalte der Tabelle ({ [ key = "x", attribute = "a", value = 1 ], [ key = "x", attribute = "c", value = 3 ], [ key = "y", attribute = "a", value = 2 ], [ key = "y", attribute = "b", value = 4 ] }) , und pivotieren Sie sie in ihre eigene Spalte.

Verwendung

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"
)

Output

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

Beispiel 2

Verwenden Sie die Werte "a", "b" und "c" in der Attributspalte der Tabelle ({ [ 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 ] }) , und pivotieren Sie sie in ihre eigene Spalte. Das Attribut "c" für den Schlüssel "x" weist mehrere Werte zu. Verwenden Sie daher die Funktion List.Max , um den Konflikt zu lösen.

Verwendung

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
)

Output

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