diff --git a/DBschema.md b/DBschema.md
index 444a45d..a81a15c 100644
--- a/DBschema.md
+++ b/DBschema.md
@@ -3,8 +3,10 @@
 �����  |��̣
 --------|-----
 *ename* | Entity Name ��ˡ�����̾��(�祭��)
-lon|����
-lat|����
+name    | ����̾��
+addr	| ����
+lon	| ����
+lat	| ����
 
 ## TABLE: maptype
 �����  |�� ̣
@@ -30,7 +32,7 @@
 
 ````
 CREATE TABLE IF NOT EXISTS mapitem(
-  ename PRIMARY KEY, lon REAL, lat REAL
+  ename PRIMARY KEY, name TEXT NOT NULL, addr TEXT, lon REAL, lat REAL
 );
 
 CREATE TABLE IF NOT EXISTS maptype(