diff --git a/Relation.h b/Relation.h
index 870ce52..73811aa 100755
--- a/Relation.h
+++ b/Relation.h
@@ -28,6 +28,6 @@ public:
 	void insertFromRelation(Relation r);
 	void removeTuple(int index);
 	void removeFromTuple(int rindex, int aindex);
-	void updateCmd();
+	void updateCmd(string attNameSet, string attSet, string attNameWhere, string attWhere);
 	void deleteCmd(string attName, string s);
 };
\ No newline at end of file
diff --git a/a.out b/a.out
index fd4c4e6..f3e06ef 100755
Binary files a/a.out and b/a.out differ