congqin chen@allizFollow BadgesProblem SolvingPythonSql CertificationsCertificate: Python (Basic)VerifiedskillCertificate: Python (Intermediate)VerifiedskillCertificate: SQL (Basic)VerifiedskillCertificate: SQL (Intermediate)VerifiedskillWork Experiencealliz has not updated employment details yet.EducationPeking University, PekingLinksalliz has not updated links details yet. Skillsalliz has not updated skills details yet.