ECET 450 Laboratory 2Lab 2 involves two parts.Part A involv.docx
- 1. 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
- 2. 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 Draw the dependency diagram using the data in the table. Make sure to label the transitive and partial dependencies. Using the dependency diagram developed in step 1, create a set of dependency diagrams that meet 3 rd Normal Form requirements. Rename attributes to meet the naming conventions. Create new entities and attributes as necessary. Draw the crow’s foot ERD with the VISIO drawing tool using the results of step 2.
- 3. 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. 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. 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
- 4. 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. 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. 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. The ultimate test is the execution of this SQL script file in the following form: @ /load_tablesXXX.sql REP Table REP_ID REP_LNAME REP_FNAME REP_STREET REP_CITY REP_STATE REP_ZIP REP_COMM REP_RATE
- 5. 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
- 6. 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
- 7. 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
- 8. 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
- 9. 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
- 10. 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