Table.SplitColumn

使用指定的拆分器函数将指定的列拆分为一组其他列。

Syntax

Table.SplitColumn(
    table as table,
    sourceColumn as text,
    splitter as function,
    optional columnNamesOrNumber as any,
    optional default as any,
    optional extraColumns as any
) as table

Remarks

使用指定的拆分器函数将指定的列拆分为一组其他列。

• table: 包含要拆分的列的表。
• sourceColumn: 要拆分的列的名称。
• splitter: 用于拆分列的拆分器函数(例如，Splitter.SplitTextByDelimiter 或 Splitter.SplitTextByPosition)。
• columnNamesOrNumber: 要创建的新列名列表或新列数。
• default: 替代当没有足够的拆分值来填充所有新列时使用的值。此参数的默认值为 null。
• extraColumns: 指定如果拆分值的数量可能多于新列的数量时该怎么做。可以将 ExtraValues.Type 枚举值传递给此参数。默认值为 ExtraValues.Ignore。

Examples

Example #1

将姓名列拆分为名字和姓氏。

let
    Source = #table(type table[CustomerID = number, Name = text, Phone = text],
    {
        {1, "Bob White", "123-4567"},
        {2, "Jim Smith", "987-6543"},
        {3, "Paul", "543-7890"},
        {4, "Cristina Best", "232-1550"}
    }),
    SplitColumns = Table.SplitColumn(
        Source,
        "Name",
        Splitter.SplitTextByDelimiter(" "))
in
    SplitColumns

Result:

#table(type table[CustomerID = number, Name.1 = text, Name.2 = text, Phone = text],
{
    {1, "Bob", "White", "123-4567"},
    {2, "Jim", "Smith", "987-6543"},
    {3, "Paul", null, "543-7890"},
    {4, "Cristina", "Best", "232-1550"}
})

Example #2

将姓名列拆分为名字和姓氏，然后重命名新列。

let
    Source = #table(type table[CustomerID = number, Name = text, Phone = text],
    {
        {1, "Bob White", "123-4567"},
        {2, "Jim Smith", "987-6543"},
        {3, "Paul", "543-7890"},
        {4, "Cristina Best", "232-1550"}
    }),
    SplitColumns = Table.SplitColumn(
        Source,
        "Name",
        Splitter.SplitTextByDelimiter(" "),
        {"First Name", "Last Name"})
in
    SplitColumns

Result:

#table(type table[CustomerID = number, First Name = text, Last Name = text, Phone = text],
{
    {1, "Bob", "White", "123-4567"},
    {2, "Jim", "Smith", "987-6543"},
    {3, "Paul", null, "543-7890"},
    {4, "Cristina", "Best", "232-1550"}
})

Example #3

将姓名列拆分为名字和姓氏，重命名新列，并使用 "-无条目-" 填充任何空白。

let
    Source = #table(type table[CustomerID = number, Name = text, Phone = text],
    {
        {1, "Bob White", "123-4567"},
        {2, "Jim Smith", "987-6543"},
        {3, "Paul", "543-7890"},
        {4, "Cristina Best", "232-1550"}
    }),
    SplitColumns = Table.SplitColumn(
        Source,
        "Name",
        Splitter.SplitTextByDelimiter(" "),
        {"First Name", "Last Name"},
        "-No Entry-")
in
    SplitColumns

Result:

#table(type table[CustomerID = number, First Name = text, Last Name = text, Phone = text],
{
    {1, "Bob", "White", "123-4567"},
    {2, "Jim", "Smith", "987-6543"},
    {3, "Paul", "-No Entry-", "543-7890"},
    {4, "Cristina", "Best", "232-1550"}
})

Example #4

将姓名列拆分为名字和姓氏，然后重命名新列。由于值的数量可能多于可用列的数量，因此请将姓氏列设为包含名字后所有值的列表。

let
    Source = #table(type table[CustomerID = number, Name = text, Phone = text],
    {
        {1, "Bob White", "123-4567"},
        {2, "Jim Smith", "987-6543"},
        {3, "Paul Green", "543-7890"},
        {4, "Cristina J. Best", "232-1550"}
    }),
    SplitColumns = Table.SplitColumn(
        Source,
        "Name",
        Splitter.SplitTextByDelimiter(" "),
        {"First Name", "Last Name"},
        null,
        ExtraValues.List)
in
    SplitColumns

Result:

#table(type table[CustomerID = number, First Name = text, Last Name = text, Phone = text],
{
    {1, "Bob", {"White"}, "123-4567"},
    {2, "Jim", {"Smith"}, "987-6543"},
    {3, "Paul", {"Green"}, "543-7890"},
    {4, "Cristina", {"J.", "Best"}, "232-1550"}
})

Category

Table.Transformation