SQL Essentials · LEFT JOIN · COUNT

Keep customers without orders

Count the orders of each customer without excluding new registrants.

SQL Essentials

Unlock this exercise and continue the path.

Keep customers without orders is part of the complete programme: 20 lessons, 44 verifiable exercises and 2 published guided projects.

  • Complete content with explained examples
  • SQL simulator and expected result
  • Detailed answer, common mistakes and challenge
View SQL EssentialsI already have access
Six-month access, one-time payment and no automatic renewal.