Can someone please help me with a Database Design Lab

ECET 450: Laboratory 2

 

Lab 2 involves two parts.

Part A involves normalizing a small part of a DB. The steps to complete this exercise include getting the data items into 1NF, 2NF, and 3NF. The final step is to generate the ERD for the table or tables that are in the dependency diagram in 3NF.

Part B provides practice in the creation of realistic tables and their relationships using Oracle SQL*Plus and introduces writing SQL*Plus script files. This laboratory exercise creates a relatively simple invoice system using SQL statements. This DB schema is used throughout the next several weeks of laboratory exercises. The final product is an SQL script that makes it possible to initially create and re-create, if need be, the DB schema in order to do to the later laboratory exercises.

 

Part A:

Purpose:

This exercise involves normalizing a small part of a DB.  The steps to complete this exercise include getting the data items into 1NF, 2NF, and 3NF.  The final step is to generate the ERD for the table or tables that are in the dependency diagram in 3NF.

Discussion:

Some small business wants to keep track of office furniture, computers, printers, etc.  A sample of the ITEM records is shown below:

ATTRIBUTE NAME

SAMPLE VALUE

SAMPLE VALUE

SAMPLE VALUE

ITEM_ID

D1342245

D1453356

D1365779

ITEM_DESCRIPTION

IQ Deskjet 683P

IQ Toner

DT Photocopier

ROOM_NUMBER

227

227

342

BLDG_CODE

SC

SC

ET

BLDG_NAME

Science

Science

Electronics Technology

BLDG_MANAGER

A. B. Jones

A. B. Jones

R. S. Smith

 

  1. Draw the dependency diagram using the data in the table.  Make sure to label the transitive and partial dependencies.
  2. Using the dependency diagram developed in step 1, create a set of dependency diagrams that meet 3rd Normal Form requirements.  Rename attributes to meet the naming conventions.  Create new entities and attributes as necessary.
  3. Draw the crow’s foot ERD with the VISIO drawing tool using the results of step 2.

 

 

 

Part B:

 

Purpose:

This laboratory provides practice in the creation of realistic tables and their relationships using Oracle SQL*Plus and introduces writing SQL*Plus script files.  This laboratory exercise creates a relatively simple invoice system using SQL statements.  This DB schema is used throughout the next several weeks of laboratory exercises.  The final product is an SQL script that makes it possible to initially create and re-create, if need be, the DB schema in order to do to the later laboratory exercises.

 

Procedure:

 

Using your assigned user name, password, and host string, log in to Oracle SQL*Plus.  Record your dialog with a spool file.

Following the four requirements below, create the 5 tables shown later in this laboratory exercise, and enter all data as shown.  Be sure to record your interactions with SQL*Plus using the spool command.

  1. Use table names, attribute names, and data exactly as shown. The one exception is that you will omit the dollar sign and comma separators in the money amounts.  Accurately enter the data as you will need these tables in future laboratory assignments.

 

  1. Save all of your commands in a single script file for printing and submission. This file should each contain a minimum of your name and the date in comments at the beginning of the file, and any other comments you feel add to the understanding of the script file.  Copy and edit your spool file to create the load_tablesXXX.sql file where XXX are your initials.  The only items that should be in this load_tablesXXX.sql file are your comments and the SQL statements that drop tables, create tables, insert data values, and display table.  Be sure to remove all incorrect commands and the Oracle responses to the correct commands from the file.  Save this file for the future in case you have to rebuild these tables.  Be sure to include a printout of this file in your report.

 

  1. The second submission requirement is a printout of each of the 5 tables completely loaded with the specified data.  Use the SET LINESIZE command to avoid line wrap around of your table data.  Print your list file in landscape mode.

 

  1. All primary key and foreign key constraints should be named according to the method presented in the classroom.  If you have any questions about which attributes are primary and/or foreign keys, please ask about them.

 

  1. The ultimate test is the execution of this SQL script file in the following form:                       @ <path_name>/load_tablesXXX.sql

 

 

<First Page of tables>

REP Table

REP_ID

REP_LNAME

REP_FNAME

REP_STREET

REP_CITY

REP_STATE

REP_ZIP

REP_COMM

REP_RATE

223

Roma

Theresa

735 First

Leonard

GA

25742

$21,756.50

0.06

237

Miller

Fred

643 High

Sheldon

GA

25753

$38,612.00

0.08

268

Rodriguez

Miguel

2737 Tyler

Springfield

GA

25758

$19,774.00

0.06

 

 

 

CUSTOMER Table

 

CUST_ID

CUST_NAME

CUST_STREET

CUST_CITY

CUST_STATE

CUST_ZIP

CUST_BALANCE

CUST_LIMIT

REP_ID

1159

Charles Appliance and Sport

3948 Brown

Leonard

GA

25742

$5,560.00

$7,500.00

223

1193

Streaming Direct

 4938 Maple

Grove

GA

25721

$210.40

$10,000.00

237

1367

Hollister’s

493 Oakwood

Farmerville

GA

25546

$6896.00

$7,500.00

268

1419

Everything Sports Shop

2939 Cardinal

Crystal

GA

25503

$5,396.36

$5,000.00

237

1462

Bargain House

4930 Main

Grove

GA

25721

$4,523.00

$10,000.00

268

1524

Jackson’s

946 Second

Leonard

GA

25742

$13,817.00

$15,000.00

223

1619

Murray’s Department Store

483 Cambridge

Sheldon

GA

25753

$2,217.00

$10,000.00

268

1687

Lawrence Sport and Appliance

393 Jefferson

Lafayette

GA

25752

$3,962.00

$5,000.00

237

1725

Dustin’s All Seasons

171 Washington

Sheldon

GA

25753

$359.00

$7,500.00

237

1842

Four Seasons Store

19 Front

Grove

GA

25721

$8,113.00

$7,500.00

223

1873

Suburban Appliance

128 High

Springfield

GA

25758

$1257.50

$5,000.00

268

 

PRODUCT Table

 

PROD_ID

PROD_DESC

PROD_QUANTITY

PROD_TYPE

PROD_WAREHOUSE

PROD_PRICE

BT105

Blender

52

HW

A

$24.95

BZ117

Exercise Bicycle

47

SG

C

$283.95

CE163

Convection Oven

28

AP

B

$186.00

DM182

Electric  Screwdriver

23

HW

A

$49.95

DS104

Electric Range

6

AP

C

$395.00

DW111

Clothes Washer

14

AP

A

$399.99

FP132

Plasma Television

15

HW

B

$999.95

KM173

 Clothes Dryer

16

AP

B

$349.95

KW114

Dishwasher

7

AP

A

$435.00

KG130

Home Workout Center

5

SG

C

$1390.00

RD147

HD Radio

7

HW

B

$280.00

 

INVOICE Table

 

INVOICE_NUM

INVOICE_DATE

CUST_ID

42419

09/10/2007

1159

42420

09/10/2007

1367

42433

09/12/2007

1419

42434

09/12/2007

1193

42447

09/13/2007

1619

42449

09/13/2007

1159

42453

09/13/2007

1619

 

 

LINE Table

 

INVOICE_NUM

PROD_ID

LINE_NUM_ORDERED

LINE_PRICE

42419

BT105

9

$26.35

42420

DS104

2

$495.00

42420

DW111

1

$399.99

42433

KM173

3

$379.95

42434

KW114

2

$595.00

42447

BZ117

2

$794.95

42447

CE163

3

$199.95

42449

DS104

1

$495.00

42453

KG130

3

$1,290.00

 

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