Question
Q1: Create relational tables that solve the update, insert, and delete anomalies in Table 4-17. Create all the relational tables with PK, FK (labeled) and
Q1: Create relational tables that solve the update, insert, and delete anomalies in Table 4-17. Create all the relational tables with PK, FK (labeled) and with the records for each table.
To avoid the update, insert, and delete anomalies, four separate relational tables are created.
TABLE 4-17
Invoice # | Date | Order Date | Customer ID | Customer Name | Item# | Description | Quantity |
52 | 6-19-18 | 5-25-18 | 201 | Johnson | 103 | Trek 9000 | 5 |
52 | 6-19-18 | 5-25-18 | 201 | Johnson | 122 | Nimbus 4000 | 8 |
52 | 6-19-18 | 5-25-18 | 201 | Johnson | 10 | Izzod 3000 | 11 |
52 | 6-19-18 | 5-25-18 | 201 | Johnson | 71 | LD Trainer | 12 |
57 | 6-20-18 | 6-01-18 | 305 | Henry | 535 | TR Standard | 18 |
57 | 6-20-18 | 6-01-18 | 305 | Henry | 115 | NT 2000 | 15 |
57 | 6-20-18 | 6-01-18 | 305 | Henry | 122 | Nimbus 4000 | 5 |
Prepare the tables after the 3NF and input the records in each table. The template for table is below:
TABLE Name
(PK) |
|
| (FK) |
|
|
|
|
|
|
|
|
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