RIGHT, LEFT, and OUTER joins
While the INNER JOIN is one of the most used joins, other times, you will also need to join data that includes results not matching the join condition from one or both of the tables in the join. This exercise will walk through the various join types in BigQuery and how you use them.
Latihan ini adalah bagian dari kursus
Introduction to BigQuery
Latihan interaktif praktis
Cobalah latihan ini dengan menyelesaikan kode contoh berikut.
WITH orders AS (
SELECT order_id, item.product_id
FROM ecommerce.ecomm_orders, UNNEST(order_items) item
LIMIT 10
),
products AS (
SELECT product_id
FROM ecommerce.ecomm_products
LIMIT 10000
)
SELECT
COUNT(*) AS orders
FROM orders o
-- Add the correct join to include all the values from the "orders" table
___ products p ON p.product_id = o.product_id;