Sergey M@sergey777neoUkraineFollow BadgesProblem SolvingSql CertificationsCertificate: SQL (Basic)VerifiedskillCertificate: SQL (Intermediate)VerifiedskillCertificate: SQL (Advanced)VerifiedskillWork Experiencesergey777neo has not updated employment details yet.Educationsergey777neo has not updated education details yet.