Changes between Version 7 and Version 8 of ddl

Timestamp:

09/02/25 19:48:34 (8 hours ago)

Author:

221046

Comment:

--

ddl

@@ -42 +42 @@
  * __**invoice_id**__ (PK)
  * customer_id* (FK → Customer)
- * **invoice_date** (NOT NULL)
+ * **invoice_date** 
  * billing_address
  * billing_city
@@ -48 +48 @@
  * billing_country
  * billing_postal_code
- * **total** (NOT NULL)
+ * **total** 
 
 = Customer =
  * __**customer_id**__ (PK)
- * **first_name** (NOT NULL)
- * **last_name** (NOT NULL)
+ * **first_name** 
+ * **last_name** 
  * company
  * support_rep_id* (FK → Employee)