Units Sold per Store

SQL practice question · Easy · Aggregation · Walmart

Return each store's `store_id` and `total_units` (sum of `units`). Order by `total_units` DESC, then `store_id`.

Table: store_sales

Schema of store_sales
Column	Type
sale_id	INTEGER
store_id	INTEGER
units	INTEGER

Schema of store_sales

Column

Type

sale_id

INTEGER

store_id

INTEGER

units

INTEGER

Sample rows of store_sales
sale_id	store_id	units
1	101	5
2	102	3
3	101	2
4	103	10
5	102	4

Sample rows of store_sales

sale_id

store_id

units

101

102

101

103

102

Expected output on the sample data
store_id	total_units
103	10
101	7
102	7

Expected output on the sample data

store_id

total_units

103

101

102

Solve it in the live editor on this page — run on sample data, then submit against hidden tests.

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