diff --git a/user_view.sql b/user_view.sql
index 98357de..c6bbdff 100644
--- a/user_view.sql
+++ b/user_view.sql
@@ -1,3 +1,4 @@
+drop table if exists shanhai.user_view;
 create view shanhai.user_view as select *
                  from shjy.user
                  order by `#reg_time` desc
diff --git a/初始化事件表.sql b/初始化事件表.sql
index b677876..f753bca 100644
--- a/初始化事件表.sql
+++ b/初始化事件表.sql
@@ -1,3 +1,4 @@
+drop table if exists shanhai.event;
 create table shanhai.event
 (
     `#ip`                     Nullable(IPv4),
diff --git a/初始化用户表.sql b/初始化用户表.sql
index 6425344..05afbf9 100644
--- a/初始化用户表.sql
+++ b/初始化用户表.sql
@@ -1,3 +1,4 @@
+drop table if exists shanhai.user;
 create table shanhai.user
 (