Table.HasColumns
Table.HasColumns(table as table, columns as any) as logical
表示 table
是否包含指定的資料行 columns
。 如果資料表包含資料行,則會傳回 true
;否則會傳回 false
。
判斷資料表是否具有 [Name] 資料行。
使用方式
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"
)
輸出
true
找出資料表是否具有 [Name] 和 [PhoneNumber] 資料行。
使用方式
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"}
)
輸出
false