Igor Sitnikov@igoreshasitnikovRussiaFollow BadgesDays of CodeSql CertificationsCertificate: SQL (Basic)VerifiedskillCertificate: SQL (Intermediate)VerifiedskillCertificate: SQL (Advanced)VerifiedskillWork Experienceigoreshasitnikov has not updated employment details yet.Educationigoreshasitnikov has not updated education details yet.