Table.AddColumn

語法

Table.AddColumn(table as table, newColumnName as text, columnGenerator as function, optional columnType as nullable type) as table

關於

將名為 newColumnName 的資料行新增至資料表 table。 此資料行的值是使用所指定選取函式 columnGenerator 來計算，並將每個資料列視為輸入。

範例 1

將名為「TotalPrice」的數字資料行新增至資料表中，每個值都是 [Price] 和 [Shipping] 資料行的總和。

使用方式

Table.AddColumn(
    Table.FromRecords({
        [OrderID = 1, CustomerID = 1, Item = "Fishing rod", Price = 100.0, Shipping = 10.00],
        [OrderID = 2, CustomerID = 1, Item = "1 lb. worms", Price = 5.0, Shipping = 15.00],
        [OrderID = 3, CustomerID = 2, Item = "Fishing net", Price = 25.0, Shipping = 10.00]
    }),
    "TotalPrice",
    each [Price] + [Shipping],
    type number
)

輸出

Table.FromRecords({
    [OrderID = 1, CustomerID = 1, Item = "Fishing rod", Price = 100, Shipping = 10, TotalPrice = 110],
    [OrderID = 2, CustomerID = 1, Item = "1 lb. worms", Price = 5, Shipping = 15, TotalPrice = 20],
    [OrderID = 3, CustomerID = 2, Item = "Fishing net", Price = 25, Shipping = 10, TotalPrice = 35]
})