Suppose that you are a manufacturer of product ABC, which is composed of parts A, B, and C. Each time a new product ABC is created, it must be added to the product inventory, using the PROD_QOH in a table named PRODUCT.

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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Suppose that you are a manufacturer of product ABC, which is composed of parts A, B, and C. Each time a new product ABC is created, it must be added to the product inventory, using the PROD_QOH in a table named PRODUCT. Also, each time the product is created, the parts inventory, using PART_QOH in a table named PART, must be reduced by one each of parts A, B, and C. The sample database contents are shown in Table P10.1.

Given the preceding information, answer Questions a through e.

a. How many database requests can you identify for an inventory update for both PRODUCT and PART?

b. Using SQL, write each database request you identified in Step a.

c. Write the complete transaction(s).

d. Write the transaction log, using Table 10.1 as your template.

e. Using the transaction log you created in Step d, trace its use in database recovery.

### Table P10.1 Overview

The image presents two tables: "PRODUCT" and "PART."

#### Table Name: PRODUCT
- **Column: PROD_CODE**
  - This column lists the product codes.
  - Example Entry: ABC

- **Column: PROD_QOH**
  - This column shows the quantity on hand for each product.
  - Example Entry: 1,205

The PRODUCT table provides data on the stock levels of specific products, using the product code as a reference.

#### Table Name: PART
- **Column: PART_CODE**
  - This column specifies part codes.
  - Example Entries: A, B, C

- **Column: PART_QOH**
  - This column displays the quantity on hand for each part.
  - Example Entries: 567, 98, 549

The PART table details the inventory levels of various parts, noted by their unique part codes. Together, these tables are useful for managing inventory by tracking both products and individual parts available in stock.
Transcribed Image Text:### Table P10.1 Overview The image presents two tables: "PRODUCT" and "PART." #### Table Name: PRODUCT - **Column: PROD_CODE** - This column lists the product codes. - Example Entry: ABC - **Column: PROD_QOH** - This column shows the quantity on hand for each product. - Example Entry: 1,205 The PRODUCT table provides data on the stock levels of specific products, using the product code as a reference. #### Table Name: PART - **Column: PART_CODE** - This column specifies part codes. - Example Entries: A, B, C - **Column: PART_QOH** - This column displays the quantity on hand for each part. - Example Entries: 567, 98, 549 The PART table details the inventory levels of various parts, noted by their unique part codes. Together, these tables are useful for managing inventory by tracking both products and individual parts available in stock.
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