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

Probability, Mike sells on the average 15 newspapers per week (Monday – Fri...

Mike sells on the average 15 newspapers per week (Monday – Friday). Find the probability that 2.1 In a given week he will sell all the newspapers

Magnetic memory, Magnetic Memory:  In the above section we have seen v...

Magnetic Memory:  In the above section we have seen various types of semiconductor RAMs. These high speed semiconductor storage devices (i.e. RAMs) are expensive. So we need s

What is a socket, QUESTION (a) You have been asked to design and implem...

QUESTION (a) You have been asked to design and implement a chat application. Which protocol would you used TCP or UDP? Justify your answer. (b) Explain why multithreading is

DBMS, define transaction with its properties? And also explain the transiti...

define transaction with its properties? And also explain the transitive dependencies with form

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

Explain the tcp/ip reference model with diagram, Question 1 Define the fol...

Question 1 Define the following terms                                   1) Analog Signals and Digital Signals 2) Composite signals Question 2 Define the following terms

Concept of programming language, CONCEPT OF PROGRAMMING LANGUAGE: In o...

CONCEPT OF PROGRAMMING LANGUAGE: In order to communicate with other human beings, one needs some language or a medium. In the same way for solving problems, a programming  lan

The gigo principle, The GIGO Principle : This is a simple principle with a...

The GIGO Principle : This is a simple principle with a clear message and universal application - Garbage In - Garbage out! Always try and enter any data in the form you want to

Artificial intelligence agents, Artificial Intelligence Agents In the ea...

Artificial Intelligence Agents In the earlier teach, we discussed what we will be talking about in Artificial Intelligence and why those tasks are important. This lecture is all

Integers, what is the size of a void integer and what is it''s range

what is the size of a void integer and what is it''s range

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