david chen@chenxg1975SingaporeFollow BadgesProblem SolvingPythonSql CertificationsCertificate: Python (Basic)VerifiedskillCertificate: Python (Intermediate)VerifiedskillCertificate: SQL (Basic)VerifiedskillWork Experiencechenxg1975 has not updated employment details yet.Educationchenxg1975 has not updated education details yet.