Table.HasColumns

指示表是否包含指定的列。

Syntax

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

Remarks

指示 table 是否包含指定的列 columns。如果表包含此列或这些列，则返回 true，否则返回 false。

Examples

Example #1

确定表是否具有列 [Name]。

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

查找表是否具有列 [Name] 和 [PhoneNumber]。

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