SQL Exercises: Compute the average price for unique companies
SQL Aggregate Functions: Exercise-23 with Solution
From the following table, write a SQL query to compute the average price for unique companies. Return average price and company id.
Sample table: item_mast
Sample Solution:
SELECT AVG(pro_price) AS "Average Price",
pro_com AS "Company ID"
FROM item_mast
GROUP BY pro_com;
Output of the Query:
Average Price Company ID 250.0000000000000000 14 650.0000000000000000 12 3200.0000000000000000 15 5000.0000000000000000 11 1475.0000000000000000 13 500.0000000000000000 16
Code Explanation:
The said SQL query that returns the average price of items grouped by company. The query performs the following operations:
Selects the average price of items from the 'item_mast' table using the AVG function and assigns the result to the alias "Average Price".
Selects the company ID of each item from the 'item_mast' table and assigns it to the alias "Company ID".
Groups the results by the "pro_com" column, which represents the company ID of each item.
The final result is a table with two columns, "Average Price" and "Company ID", showing the average price of items for each company.
Practice Online
Query Visualization:
Duration:

Rows:

Cost:

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Previous SQL Exercise: Find the number of products over or equal to Rs 350.
Next SQL Exercise: Calculate the total allotment for all departments.
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SQL: Tips of the Day
What is the best way to paginate results in SQL Server?
SELECT * FROM ( SELECT ROW_NUMBER() OVER ( ORDER BY OrderDate ) AS RowNum, * FROM Orders WHERE OrderDate >= '1980-01-01' ) AS RowConstrainedResult WHERE RowNum >= 1 AND RowNum < 20 ORDER BY RowNum
Database: SQL Server
Ref: https://bit.ly/3MGrNlk
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