SELECT csb.*, cet.education_name, cpt.project_name, cb.business_name, cs.subject_name FROM course_section_business csb LEFT JOIN course_education_type cet ON csb.education_type_id = cet.id AND cet.`status` = 1 LEFT JOIN course_project_type cpt ON csb.project_id = cpt.id AND cpt.`status` = 1 LEFT JOIN course_business cb ON csb.business_id = cb.id AND cb.`status` = 1 LEFT JOIN course_subject cs ON csb.subject_id = cs.id AND cs.`status` = 1 WHERE csb.section_id =#{id} delete from course_section_business where section_id = #{sectionId} and tenant_id = #{newTenantId}