public void onCreate(SQLiteDatabase db) {   

　　db.execSQL("CREATE TABLE Button(Id integer NOT NULL PRIMARY KEY UNIQUE,name text," +     "parentId integer,typeId integer,CMD1 text,CMD2 text,CMD3 text,CMD1Status integer," +     "CMD2Status integer,CMD3Status integer,CMD1Id integer,CMD2Id integer,CMD3Id integer," +     "CMD1Param integer,CMD2Param integer,CMD3Param integer,IsDimmer integer DEFAULT 0," +     "openState integer DEFAULT 0,BtnType integer)");

 }

我的创建语句不对么？怎么执行查询的时候报错数据不存在？E/AndroidRuntime(387): Caused by: android.database.sqlite.SQLiteException: no such table: Button: ,