Table.LastN

返回指定数量的最后几行。

Syntax

Table.LastN(
    table as table,
    countOrCondition as any
) as table

Remarks

返回表 table 中的最后几行，具体取决于 countOrCondition 的值:

• 如果 countOrCondition 为数字，则将返回从位置(结尾 - countOrCondition)开始的多行。
• 如果 countOrCondition 是条件，将以升序位置返回满足此条件的行，直到行不满足条件为止。

Examples

Example #1

查找表的最后两行。

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

Result:

Table.FromRecords({
    [CustomerID = 2, Name = "Jim", Phone = "987-6543"],
    [CustomerID = 3, Name = "Paul", Phone = "543-7890"]
})

Example #2

查找表中 [a] > 0 的后几行。

Table.LastN(
    Table.FromRecords({
        [a = -1, b = -2],
        [a = 3, b = 4],
        [a = 5, b = 6]
    }),
    each _ [a] > 0
)

Result:

Table.FromRecords({
    [a = 3, b = 4],
    [a = 5, b = 6]
})

Category

Table.Row operations