Table.Unpivot
Table.Unpivot(table as table, pivotColumns as list, attributeColumn as text, valueColumn as text) as table
Hiermee wordt een set kolommen in een tabel omgezet in kenmerk-waardeparen, gecombineerd met de rest van de waarden in elke rij.
Neem de kolommen 'a', 'b' en 'c' in de tabel ({[ key = "x", a = 1, b = null, c = 3 ], [ key = "y", a = 2, b = 4, c = null ]})
en herstructureer ze in attribuut-waardeparen.
Gebruik
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"
)
uitvoer
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]
})