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

What are search engines, QUESTION 1 What are search engines? QUESTI...

QUESTION 1 What are search engines? QUESTION 2 Write short notes on the inverted file. QUESTION 3 Write short notes on: (i) Derivative indexing (also known a

Describe FCFS Scheduling algorithm ?, FCFS algorithm also known as: • Firs...

FCFS algorithm also known as: • First-In-First-Out (FIFO) • Run-Until-Done • Run-to-Completion • Possibly, First-Come-First-Served algorithm is the easiest scheduling algorithm i

What is a search engine? explain its various parts, Question 1 What are th...

Question 1 What are the dos and don'ts of Internet Reporting? Question 2 Write a long note on the later years of journalism in USA Question 3 What is a search engi

As, access,excel and ms word/

access,excel and ms word/

What are the features of microprocessor ?, Previously two sections the fund...

Previously two sections the fundamentals of the workings and architecture of the central processing unit has been explained. There has been a common look at easy processor architec

Command Line Arguments, You may have seen, as, that many programs can be ru...

You may have seen, as, that many programs can be run so that they give you with some basic information concerning how they should be run. Python permits you to do this with -h: $ p

Word processing (wp), Word Processing (WP): Word Processing is one of ...

Word Processing (WP): Word Processing is one of the most widespread application software types in use today. Developed as a successor to primitive text editors that were popul

Outdoor patient department features - receptionist module, Outdoor Patient...

Outdoor Patient Department (OPD) Features The following modules can be developed for various areas and workers. A receptionist Module Receptionist updates all bas

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