diff --git a/doc/recruit_announcement.sql b/doc/recruit_announcement.sql
index ecb61dd..518dbea 100644
--- a/doc/recruit_announcement.sql
+++ b/doc/recruit_announcement.sql
@@ -140,3 +140,16 @@ CREATE TABLE `bg_recruit_announcement_education` (
   KEY `idx_announcement_id` (`announcement_id`),
   KEY `idx_education_name` (`education_name`)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='招聘公告-学历要求关联表';
+
+
+-- ============================================================
+-- 截断数据 
+-- ============================================================
+truncate bg_recruit_announcement;
+truncate bg_recruit_announcement_batch;
+truncate bg_recruit_announcement_category;
+truncate bg_recruit_announcement_city;
+truncate bg_recruit_announcement_education;
+truncate bg_recruit_announcement_industry;
+truncate bg_recruit_announcement_tag;
+truncate bg_recruit_announcement_year;
\ No newline at end of file