Table.AddColumn

语法

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

关于

将名为 newColumnName 的列添加到表 table。 使用指定的选择函数 columnGenerator（它将每行作为输入）来计算列的值。

示例 1

将名为“TotalPrice”的数字列添加到表中，每个值是 [Price] 和 [Shipping] 列的总和。

使用情况

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
)

输出

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]
})