a blackrain@a_blackrainJava developerPolandFollow BadgesProblem SolvingSql CertificationsCertificate: SQL (Basic)VerifiedskillCertificate: SQL (Intermediate)VerifiedskillCertificate: SQL (Advanced)VerifiedskillWork Experiencea_blackrain has not updated employment details yet.Educationa_blackrain has not updated education details yet.