wan qiang@wqhlmFollow BadgesProblem SolvingSql CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Advanced)VerifiedskillWork Experiencewqhlm has not updated employment details yet.EducationSoutheast University, NanjingLinkswqhlm has not updated links details yet. Skillswqhlm has not updated skills details yet.