LI JINGJUN@rudwns0928Republic of KoreaFollow BadgesProblem SolvingDays of JSSql CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: SQL (Basic)VerifiedskillCertificate: SQL (Intermediate)VerifiedskillCertificate: SQL (Advanced)VerifiedskillWork Experiencerudwns0928 has not updated employment details yet.Educationrudwns0928 has not updated education details yet.