Table.RenameColumns
对格式 {old, new} 应用重命名。
Syntax
Table.RenameColumns(
table as table,
renames as list,
optional missingField as MissingField.Type
) as table
Remarks
对表 table 中的列执行给定的重命名。一个替换操作 renames 由两个值组成,即旧列名和新列名,这些值存放在列表中。 如果列不存在,则引发错误,除非可选参数 missingField 指定了备用值(例如 MissingField.UseNull 或 MissingField.Ignore)。
Examples
Example #1
在表中将列名 "CustomerNum" 替换为 "CustomerID"。
Table.RenameColumns(
Table.FromRecords({[CustomerNum = 1, Name = "Bob", Phone = "123-4567"]}),
{"CustomerNum", "CustomerID"}
)
Result:
Table.FromRecords({[CustomerID = 1, Name = "Bob", Phone = "123-4567"]})
Example #2
在表中将列名 "CustomerNum" 替换为 "CustomerID",并将 "PhoneNum" 替换为 "Phone"。
Table.RenameColumns(
Table.FromRecords({[CustomerNum = 1, Name = "Bob", PhoneNum = "123-4567"]}),
{
{"CustomerNum", "CustomerID"},
{"PhoneNum", "Phone"}
}
)
Result:
Table.FromRecords({[CustomerID = 1, Name = "Bob", Phone = "123-4567"]})
Example #3
在表中将列名 "NewCol" 替换为 "NewColumn",如果列不存在,则忽略。
Table.RenameColumns(
Table.FromRecords({[CustomerID = 1, Name = "Bob", Phone = "123-4567"]}),
{"NewCol", "NewColumn"},
MissingField.Ignore
)
Result:
Table.FromRecords({[CustomerID = 1, Name = "Bob", Phone = "123-4567"]})
Category
Table.Column operations