David Johnson@dj999abcFollow BadgesProblem SolvingCPPJavaPythonDays of CodeDays of JSDays ofStatisticsSqlC language CertificationsCertificate: SQL (Basic)VerifiedskillCertificate: SQL (Intermediate)VerifiedskillWork Experiencedj999 has not updated employment details yet.EducationUniversity of OxfordLinksdj999 has not updated links details yet. Skillsdj999 has not updated skills details yet.