David Leu@dleu2000Follow BadgesProblem SolvingSql CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillWork Experiencedleu2000 has not updated employment details yet.Educationdleu2000 has not updated education details yet.Linksdleu2000 has not updated links details yet. Skillsdleu2000 has not updated skills details yet.