Window

LAST_VALUE

BigQueryBigQuery

Returns the last value in the window frame for each row.

Tipe hasil: Same as input expressionDiperbarui: 13 Jun 2026

Syntax

SQL
LAST_VALUE(expression) OVER ([PARTITION BY partition_expression] ORDER BY sort_expression [frame_clause])

Parameter

expressionanywajib

Column or expression whose value is retrieved

PARTITION BYexpressionopsional

Divides data into groups

ORDER BYexpressionopsional

Determines the ordering

Contoh Penggunaan

Last Value with Full Frame

SQL
1SELECT
2  department,
3  name,
4  salary,
5  LAST_VALUE(name) OVER (
6    PARTITION BY department
7    ORDER BY salary
8    ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING
9  ) as highest_paid
10FROM `project.dataset.employees`;

Finds the highest-paid employee per department.

Hasil
departmentnamesalaryhighest_paid
SalesDavid50000Alice
SalesBob80000Alice
SalesAlice120000Alice

Latest Status per Order

SQL
1SELECT
2  order_id,
3  status,
4  updated_at,
5  LAST_VALUE(status) OVER (
6    PARTITION BY order_id
7    ORDER BY updated_at
8    ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING
9  ) as current_status
10FROM `project.dataset.order_history`;

Gets the most recent status for each order.

Pertanyaan Umum tentang LAST_VALUE

Apa itu fungsi LAST_VALUE di BigQuery?
Returns the last value in the window frame for each row. Di BigQuery, fungsi LAST_VALUE termasuk dalam kelompok fungsi yang sering digunakan untuk mengolah dan menganalisis data secara efisien.
Bagaimana cara menggunakan LAST_VALUE di BigQuery?
Gunakan sintaks berikut: LAST_VALUE(expression) OVER ([PARTITION BY partition_expression] ORDER BY sort_expression [frame_clause]). Pastikan argumen yang dimasukkan sudah sesuai dengan tipe data yang diharapkan.
Apa nilai yang dikembalikan oleh fungsi LAST_VALUE?
Fungsi LAST_VALUE mengembalikan nilai bertipe Same as input expression. Pastikan tipe data hasil sudah sesuai dengan kebutuhan query atau formula kamu. Jika input mengandung nilai NULL, perilaku fungsi dapat berbeda — selalu periksa dokumentasi untuk memastikan hasilnya sesuai ekspektasi.
Apa saja parameter fungsi LAST_VALUE?
Fungsi ini memiliki 1 parameter wajib dan 2 parameter opsional. Parameter yang digunakan: expression (any, wajib): Column or expression whose value is retrieved; PARTITION BY (expression, opsional): Divides data into groups; ORDER BY (expression, opsional): Determines the ordering.
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