delete from ocp_model_version where requirement_code = #{requirementCode} and model_code =#{modelCode} delete from ocp_model_prop_version where model_code =#{modelCode} delete from ocp_model_requirement_approval where requirement_code = #{requirementCode} delete from ocp_model_requirement where requirement_code = #{requirementCode} delete from ocp_model_rel_version where relation_mode_code = #{modelCode}