[SQL] “Most profitable company” – Forbes
The dataset for this SQL interview question from Forbes contains information on 100 companies of the Forbes list. These information include the company name, sector, industry, country, sales and profits and other columns.
The goal here would be to write a query which will return the most profitable ocmpany in the financial sector. We will solve this puzzle using two approaches:
Approach I: Sorting
/* Approach I: Sorting */ SELECT company, sector, continent, profits FROM forbes_global_2010_2014 WHERE sector = 'Financials' ORDER BY profits DESC LIMIT 1
Approach II: Subqueries
/* Approach II: Subqueries */ SELECT company, continent FROM forbes_global_2010_2014 WHERE sector = 'Financials' AND profits = (SELECT MAX(profits) FROM forbes_global_2010_2014 WHERE sector = 'Financials')
You can also find the complete solution and explanation of approaches used for solving this question here: