This technical problem deals with finding common records between two SQL tables. An example is given, along with the expected output.
This technical problem involves finding all customers who have ordered a product that is out of stock. The input is three tables: customers, orders, and products. The output is the customers table with the id and name of the customers who have ordered a product that is out of stock.
To find the total number of orders for each customer, you can use a SQL query as follows: SELECT customer_id, COUNT(order_id) AS total_orders FROM customer_orders GROUP BY customer_id;
This technical problem involves writing a SQL query to find the number of employees in each department. The table of data provided in the example input includes department and employee count columns. The desired output is also provided in the example, and includes the same department and employee count columns.
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.