David Johnson@dj999abcUnited KingdomFollowAboutEducationUniversity of Oxford BadgesProblem SolvingCPPJavaPythonDays of CodeDays of JSDays ofStatisticsSqlC language CertificationsCertificate: SQL (Basic)VerifiedskillCertificate: SQL (Intermediate)VerifiedskillWork Experiencedj999 has not updated employment details yet.EducationUniversity of Oxford