To find the customer with the highest total purchase amount, write a SQL query that select the customer with the maximum TotalPurchaseAmount from the table.
About this solution: The candidate's solution is correct and demonstrates a good understanding of SQL.
The writer is asking how to count the number of replies in a topic, when replies are only associated with threads, which are in turn associated with topics.
About this solution: The candidate's solution is correct and demonstrates a level of completeness. The candidate has correctly identified that a subquery is needed to get the ThreadIDs that are in the topic, and then counts the number of replies that are in those threads.
This question asks for the 5th highest salary from the "Employees" table. The example input is a table with id, name, and salary columns, and the example output is a table with a salary column.
About this solution: The candidate's solution correctly finds the 5th highest salary from the "Employees" table. The solution uses the correct SQL syntax and demonstrates a good understanding of the problem.
This question asks for the 5th highest salary from the "Employees" table. The example input is a table with id, name, and salary columns, and the example output is a table with a salary column.
About this solution: The candidate's solution correctly finds the 5th highest salary from the "Employees" table. The solution uses the correct SQL syntax and demonstrates a good understanding of the problem.
This question asks for the 5th highest salary from the "Employees" table. The example input is a table with id, name, and salary columns, and the example output is a table with a salary column.
About this solution: The candidate's solution correctly finds the 5th highest salary from the "Employees" table. The solution uses a with statement to create a rating table, which is then used to select the 5th highest salary. This is a valid approach and the solution correctly solves the problem.
This technical problem involves writing an SQL query that returns the top 3 most purchased products by customers. The example input and output are provided.
About this solution: The solution above is optimal because it uses the ORDER BY and LIMIT clauses to sort the table by product_id in descending order and then limit the results to the top 3.
To find the top 10 customers by total purchase amount, write a SQL query that orders the customers by purchase_amount in descending order.
About this solution: The solution is optimal because it uses the ORDER BY clause to sort the table by purchase_amount in descending order, and then uses the LIMIT clause to return the first 10 rows.