diff --git a/backend/src/main/resources/schema.sql b/backend/src/main/resources/schema.sql
index 573e44a..0876251 100644
--- a/backend/src/main/resources/schema.sql
+++ b/backend/src/main/resources/schema.sql
@@ -2,11 +2,6 @@
  Model : NorthWind
 **/
 
-DROP SCHEMA IF EXISTS northwind;
-
-CREATE SCHEMA northwind;
-USE northwind;
-
 /* Table: user (Application Users) */
 CREATE TABLE user (
     user_id     NVARCHAR(20) NOT NULL,
@@ -219,7 +214,7 @@ select o.order_date, o.order_status, o.paid_date, o.payment_type, o.shipping_fee
  
  /* REAL_NET */
  CREATE TABLE RN_INSTRUCTOR (
- 	ID VARCHAR(20) NOT NULL AUTO_INCREMENT,
+ 	ID INT(11) NOT NULL AUTO_INCREMENT,
  	FIRST_NAME VARCHAR(20) NOT NULL, 
  	LAST_NAME VARCHAR(20) NOT NULL, 
  	EMAIL VARCHAR(20) NOT NULL,