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DataBase Fundamentals new
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Assuming that we have 2 tables - customers and orders:
Which of the following queries is correct to count the customers who have put at least one order?
Assuming that we have 2 tables - customers and orders:
Assume also that we have 2 customers and the first customer has 3 orders and the second customer has 5 orders. How many rows will the following select query bring?
select * from customers join orders on orders.customer_id = customers.customer_id;Assuming that we have 2 tables - customers and orders:
Assuming the following query
select * from customers join orders on orders.customer_id = customers.customer_id;Assuming that we have 2 tables - customers and orders:
Assuming that we have 2 tables - customers and orders:
Which of the following queries is correct to count the customers who have put at least one order?
Assuming that we have 2 tables - customers and orders:
Assume also that we have 2 customers and the first customer has 3 orders and the second customer has 5 orders. How many rows will the following select query bring?
select * from customers join orders on orders.customer_id = customers.customer_id;Assuming that we have 2 tables - customers and orders:
Assuming the following query
select * from customers join orders on orders.customer_id = customers.customer_id;Assuming that we have 2 tables - customers and orders:
Assuming that we have 2 tables - customers and orders:
Which of the following queries is correct to count the customers who have put at least one order?
Assuming that we have 2 tables - customers and orders:
Assume also that we have 2 customers and the first customer has 3 orders and the second customer has 5 orders. How many rows will the following select query bring?
select * from customers join orders on orders.customer_id = customers.customer_id;