Use triggers to maintain referential integrity, PL-S, Basic Computer Science

Assignment Help:
At times, Brewbean''s has changed the id number for existing products. In the past, they have had to add a new product row with the new id to the BB_PRODUCT table, modify all the corresponding BB_BASKETITEM and BB_PRODUCTOPTION table rows, and then delete the original product row. Can a trigger be developed to avoid all these steps and handle the update of the BB_BASKETITEM and BB_PRODUCT OPTION table rows automatically for a given change in product id? If so, create the trigger and test by issuing an update statement, which changes the IDPRODUCT of 7 to 22. Do a rollback to return the data back to its original state. Also, disable the new trigger after you have completed the assignment.

Related Discussions:- Use triggers to maintain referential integrity, PL-S

Basic description of a computer system, The main components of a computer ...

The main components of a computer system at a basic level Computer System We call computer system to the whole configuration of a computer, as well as the peripheral units and the

Synchronizing Threads in python, The threading module offered with Python i...

The threading module offered with Python includes a simple-to-implement locking mechanism that will permit you to synchronize threads. A new lock is formed by calling the Lock() me

ASSIGNMENTS, A STAIRCASE LIGHT IS CONTROLLED BY TWO SWITCHES ONE AT THE TOP...

A STAIRCASE LIGHT IS CONTROLLED BY TWO SWITCHES ONE AT THE TOP OF THE STAIRS AND ANOTHER AT THE BOTTOM OF STAIRS

Sequential writing in fcb files, Previous to we can perform writing to the...

Previous to we can perform writing to the disk it is essential to define the data transfer region using for this end the 1AH function of the 21H interruption. The 1AH function does

Flowchart, i need help with flowcharting a procedure

i need help with flowcharting a procedure

What is vpn? list the different types of vpn, Question 1 What is routing? ...

Question 1 What is routing? Explain the principles of routing Question 2 Explain different types of server operations in Enterprise Networking Question 3 Briefly d

Data output, Data Output : Processed data is no use to you if you cannot u...

Data Output : Processed data is no use to you if you cannot use it. Once data has been processed, you will either: (1) Send it as a data file to another system, e.g. write a fi

Application software, Application Software:   Application software is ...

Application Software:   Application software is designed and developed to accomplish one or more specific task or solve a particular problem.    Application software may be

Elements of cpu, ELEMENTS OF CPU: The CPU is a complex IC chip having ...

ELEMENTS OF CPU: The CPU is a complex IC chip having millions of transistors. As mentioned earlier, a CPU has three major identifiable parts: Control Unit (CU), Arithmetic & l

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd