DELETE FROM "pms_knowledge_library_member";
DELETE FROM "pms_knowledge_library";
DELETE FROM "pms_work_item_activity";
DELETE FROM "pms_work_item_comment";
DELETE FROM "pms_work_item_label";
DELETE FROM "pms_work_item_work_log";
DELETE FROM "pms_work_item_member";
DELETE FROM "pms_work_item_user_sort";
DELETE FROM "pms_work_item";
DELETE FROM "pms_work_item_status";
DELETE FROM "pms_iteration";
DELETE FROM "pms_project_group_relation";
DELETE FROM "pms_project_group";
DELETE FROM "pms_project_member";
DELETE FROM "pms_project";