Table.Combine

Syntax

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

About

Returns a table that is the result of merging a list of tables, tables. The resulting table will have a row type structure defined by columns or by a union of the input types if columns is not specified.

Example 1

Merge the three tables together.

Usage

Power Query M

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"]})
})

Output

Power Query M

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

Example 2

Merge three tables with different structures.

Usage

Power Query M

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

Output

Power Query M

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"]
})

Example 3

Merge two tables and project onto the given type.

Usage

Power Query M

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

Output

Power Query M

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