Oracle 12c: SQL The JustLee DB contains a table called PROMOTION. It does not have any of the relationships to other tables we discussed last week. It is not a one-to-one, one-to-many, or many-to-many relationship. There is no crowfoot on the ER diagram related to this table. However, there IS a relationship depicted in the ER diagram between the PROMOTION and the BOOKS tables. What kind of relationship do you think it is? Please check the structure of these two tables and the data contained in them in your ApEx schema running SQL commands using the clauses you have learned this week. Which commands did you use and what results did you see?

Oracle 12c: SQL The JustLee DB contains a table called PROMOTION. It does not have any of the relationships to other tables we discussed last week. It is not a one-to-one, one-to-many, or many-to-many relationship. There is no crowfoot on the ER diagram related to this table. However, there IS a relationship depicted in the ER diagram between the PROMOTION and the BOOKS tables. What kind of relationship do you think it is? Please check the structure of these two tables and the data contained in them in your ApEx schema running SQL commands using the clauses you have learned this week. Which commands did you use and what results did you see?

Oracle 12c: SQL

3rd Edition

ISBN:9781305251038

Author:Joan Casteel

Publisher:Joan Casteel

Chapter9: Joining Data From Multiple Tables

Section: Chapter Questions

Problem 9RQ

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The Driver Relationship team realized that maintaining driver IDs is difficult and requested an automatic way of incrementing the value when a new driver is added. You need to make the changes on the table to automatically increment the Driver ID. After the change, you need to insert the following driver: First Name: Nursin Last Name: Yilmaz Driving License ID: 4141447 Start Date: 2019-12-28 Driving License Checked: True Rating: 4.0
The Driver Relationship team realized that there is no need for DRIVER_DRIVING_LICENSE_CHECKED field in the active drivers table. Since all the drivers are already active in InstantRide, their driving licenses should be checked regularly. The team wanted you to remove the field from the table.
The Driver Relationship team realized that maintaining driver IDs is difficult and requested an automatic way of incrementing the value when a new driver is added. You need to make the changes on the table to automatically increment the Driver ID. After the change, you need to insert the following driver: First Name: Nursin Last Name: Yilmaz Driving License ID: 4141447 Start Date: 2019-12-28 Driving License Checked: True Rating: 4.0 THIS IS IN SQL FORMAT FOR CENGAGE MINDTAP, PLEASE HELP I AM STUCK
what happens when we create our tables with relationships and then have to modify the relationship? can we do this if the data is in the tables?
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