Syntax
Table.AddColumn(
table as table,
newColumnName as text,
columnGenerator as function,
optional columnType as nullable type
) as table
About
向表table添加一个名为newColumnName的列。 使用指定的选择函数 columnGenerator 计算列的值，每个行都作为输入。
示例 1
将名为“TotalPrice”的数字列添加到表中，每个值都是 [Price] 和 [Shipping] 列的总和。
用法
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]
})