Create an array in a query
Sometimes, when you aggregate data, you will still want to preserve some of the original data, and using ARRAY provides a great structure to do this. For example, in this query, you will create a new ARRAY by writing a subquery to do so.
Questo esercizio fa parte del corso
Introduction to BigQuery
Istruzioni dell'esercizio
- Create an array of
product_idfor products weighing 2,220 grams. First, check theecomm_productstable to identify the column that stores weight information.
Esercizio pratico interattivo
Prova a risolvere questo esercizio completando il codice di esempio.
-- Fill in the query to construct the array
SELECT
ARRAY(SELECT
-- Add the column with the values you want in the array
___
FROM
ecommerce.ecomm_products
WHERE
-- Add the column we want to filter by
___ = 2220)