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Monday, December 26, 2011

CS403 Assignment no 3 Solution

Assignment No. 03
Semester Fall 2011
Database Management Systems-CS403
Total Marks: 15

Due Date:
29 – 12 – 2011

To understand the Mapping from ERD to Relational Schema / tables (Logical Database Design).

Please read the following instructions carefully before solving & submitting assignment:
It should be clear that your assignment will not get any credit if:

o       The assignment is submitted after due date.
o       The submitted assignment does not open or file is corrupt.
o       The assignment is copied (from other student or copy from handouts).
o       The assignment is in the format other than MS Word (doc).
o       Student ID is not mentioned in the assignment File or name of file is other than student ID.

For any query about the assignment, contact at



Map the given ER Diagram of “Inventory Management System” into Relational Schema / Tables (Logical Database Design).



This Picture is just for IDEA       


- C-ID (Key)
- C-Name
- C-Address
- C-Phone#

- Order-ID (Key)
- O-Description

- Inv-ID (Key)
- Inv-Description
- Total-Amount

- P-ID (Key)
- P-Name
- P-Price

- Cat-ID (Key)
- Cat-Description

- V-ID (Key)
- V-Name
- V-Address

- S-ID (Key)
- S-Location
- S-Phone#

- H-ID (Key)
- S-ID


• Customer can place many Orders at a time. He also may not place any Order
• There is always one Invoice for each Order.
• One Order can have one or many Products. And one Product can be ordered many times or may not be ordered at all.
• A Vendor provides many products and it is also possible that organization order single product from multiple vendors.
• One Category can have many products, but must have at least one product. And one product must belongs to a single category.
• A Store has Products of many Categories. And Products of one Category is always placed in one Store.
• One store has multiple halls and one hall belongs to single store.


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