Table.HasColumns

语法

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

关于

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

示例 1

确定表是否具有列 [Name]。

使用情况

TTable.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")

输出

true

示例 2

查找表是否具有列 [Name] 和 [PhoneNumber]。

使用情况

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" })

输出

false