diff --git a/src/database/create-table.sql b/src/database/create-table.sql
index 7c4dc1e..114a50a 100644
--- a/src/database/create-table.sql
+++ b/src/database/create-table.sql
@@ -110,6 +110,8 @@ CREATE TABLE tb_project
 	group_id int(10) NULL,
 	related_ids varchar(128) NOT NULL
 	DEFAULT '',
+	update_time timestamp NOT NULL
+		DEFAULT now(),
 
 	FOREIGN KEY(user_id) REFERENCES tb_user(id)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8;
@@ -339,7 +341,7 @@ CREATE TABLE tb_notification
 		DEFAULT 0,
 	
 	FOREIGN KEY(user_id) REFERENCES tb_user(id)
-)
+)ENGINE=InnoDB DEFAULT CHARSET=utf8;
 
 CREATE TABLE tb_corporation
 (
@@ -378,14 +380,3 @@ CREATE TABLE tb_group
 	FOREIGN KEY(user_id) REFERENCES tb_user(id),
 	FOREIGN KEY(production_line_id) REFERENCES tb_production_line(id)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8;
-
-
-
-ALTER TABLE tb_user
-ADD COLUMN realname varchar(128) NOT NULL
-	DEFAULT '';
-
-ALTER TABLE tb_project
-ADD COLUMN update_time timestamp NOT NULL
-		DEFAULT now();
-
diff --git a/src/database/update.sql b/src/database/update.sql
deleted file mode 100644
index 8b2cf4c..0000000
--- a/src/database/update.sql
+++ /dev/null
@@ -1,3 +0,0 @@
-
-	修改name由varchar(16)更新为(256)
-	
\ No newline at end of file
diff --git a/src/database/update.v0.9.sql b/src/database/update.v0.9.sql
new file mode 100644
index 0000000..3c1d93e
--- /dev/null
+++ b/src/database/update.v0.9.sql
@@ -0,0 +1,24 @@
+-- tb_user.name 由varchar(16) changed to varchar(256)
+
+ALTER TABLE tb_user
+ALTER COLUMN name varchar(256) not NULL;
+
+-- new added table for notifications system: tb_notification
+	
+CREATE TABLE tb_notification
+(
+	id int(10) AUTO_INCREMENT NOT NULL
+		PRIMARY KEY,
+	user_id int(10) NOT NULL,
+	type_id smallint NOT NULL,
+	param1 varchar(128) NULL,
+	param2 varchar(128) NULL,
+	param3 text NULL,
+	create_time timestamp NOT NULL
+		DEFAULT now(),
+		
+	is_read smallint NOT NULL
+		DEFAULT 0,
+	
+	FOREIGN KEY(user_id) REFERENCES tb_user(id)
+)ENGINE=InnoDB DEFAULT CHARSET=utf8;
\ No newline at end of file