Solving SQL tests

Employer
[no-member:pro]Dmitry[/no-member:pro]
Project parameters
Type of cooperationOne-time project
SectionEducation and consulting
Prepaymentwithout prepayment
Payment methodsBank transfer, Electronic money
Acceptance of requestsfrom Aug 16, 2021 until Aug 21, 2021
Project description
Offering extra earnings. It is necessary to solve the SQL tests + exam in the form of a test. Payment is negotiated.