Table.Combine

语法

Table.Combine(tables as list, optional columns as any) as table

关于

返回一个表，此表是合并表 tables 的列表的结果。 生成的表的行类型结构将由 columns 定义，或由输入类型的联合定义（如果未指定 columns）。

示例 1

将以下三个表合并在一起。

使用情况

Table.Combine({
    Table.FromRecords({[CustomerID = 1, Name = "Bob", Phone = "123-4567"]}),
    Table.FromRecords({[CustomerID = 2, Name = "Jim", Phone = "987-6543"]}),
    Table.FromRecords({[CustomerID = 3, Name = "Paul", Phone = "543-7890"]})
})

输出

Table.FromRecords({
    [CustomerID = 1, Name = "Bob", Phone = "123-4567"],
    [CustomerID = 2, Name = "Jim", Phone = "987-6543"],
    [CustomerID = 3, Name = "Paul", Phone = "543-7890"]
})

示例 2

合并结构不同的三个表。

使用情况

Table.Combine({
    Table.FromRecords({[Name = "Bob", Phone = "123-4567"]}),
    Table.FromRecords({[Fax = "987-6543", Phone = "838-7171"]}),
    Table.FromRecords({[Cell = "543-7890"]})
})

输出

Table.FromRecords({
    [Name = "Bob", Phone = "123-4567", Fax = null, Cell = null],
    [Name = null, Phone = "838-7171", Fax = "987-6543", Cell = null],
    [Name = null, Phone = null, Fax = null, Cell = "543-7890"]
})

示例 3

合并两个表并投影到给定类型。

使用情况

Table.Combine(
    {
        Table.FromRecords({[Name = "Bob", Phone = "123-4567"]}),
        Table.FromRecords({[Fax = "987-6543", Phone = "838-7171"]}),
        Table.FromRecords({[Cell = "543-7890"]})
    },
    {"CustomerID", "Name"}
)

输出

Table.FromRecords({
    [CustomerID = null, Name = "Bob"],
    [CustomerID = null, Name = null],
    [CustomerID = null, Name = null]
})