Kaijun He@Kaijun_heUnited StatesFollow BadgesProblem SolvingPythonSql CertificationsCertificate: SQL (Basic)VerifiedskillCertificate: SQL (Intermediate)VerifiedskillCertificate: SQL (Advanced)VerifiedskillWork ExperienceKaijun_he has not updated employment details yet.EducationKaijun_he has not updated education details yet.