diff --git a/sql/gamedb2003_n_migrate_191230_01.sql b/sql/gamedb2003_n_migrate_191230_01.sql
new file mode 100644
index 0000000..56f87fe
--- /dev/null
+++ b/sql/gamedb2003_n_migrate_191230_01.sql
@@ -0,0 +1,6 @@
+begin;
+
+alter table user add `demotank` int(11) NOT NULL DEFAULT '0' COMMENT '每日体验坦克';
+
+insert into version (version) values(2019123001);
+commit;