Table.HasColumns

指出資料表是否包含指定的資料行。

Syntax

Table.HasColumns(
    table as table,
    columns as any
) as logical

Remarks

指出 table 是否包含指定的資料行 columns。如果資料表包含資料行，則傳回 true，否則傳回 false。

Examples

Example #1

判斷資料表是否具有 [Name] 資料行。

Table.HasColumns(
    Table.FromRecords({
        [CustomerID = 1, Name = "Bob", Phone = "123-4567"],
        [CustomerID = 2, Name = "Jim", Phone = "987-6543"],
        [CustomerID = 3, Name = "Paul", Phone = "543-7890"],
        [CustomerID = 4, Name = "Ringo", Phone = "232-1550"]
    }),
    "Name"
)

Result:

true

Example #2

找出資料表是否具有 [Name] 和 [PhoneNumber] 資料行。

Table.HasColumns(
    Table.FromRecords({
        [CustomerID = 1, Name = "Bob", Phone = "123-4567"],
        [CustomerID = 2, Name = "Jim", Phone = "987-6543"],
        [CustomerID = 3, Name = "Paul", Phone = "543-7890"],
        [CustomerID = 4, Name = "Ringo", Phone = "232-1550"]
    }),
    {"Name", "PhoneNumber"}
)

Result:

false

Category

Table.Column operations