Triggers and Stored Procedures, Database Management System

Assignment Help:
10A.53 Code an Oracle Database trigger to enforce the constraint that an employee can
never change his or her department.

10A.54 Code an Oracle Database trigger to allow the deletion of a department if it
only has one employee. Assign the last employee to the Human Resources
department.

10A.55 Design a system of triggers to enforce the M-M relationship. Use Figure 10A-53 as an
example, but assume that departments with only one employee can be deleted.
Assign the last employee in a department to Human Resources.

Related Discussions:- Triggers and Stored Procedures

Perform an exploratory analysis on the entire dataset, Australian Bureau of...

Australian Bureau of Statistics (ABS) provides retail data for different groups and different states as well as the aggregate numbers. Table 11 " Retail Turnover, State by Industry

Improved performance, Improved performance: As the data is located near the...

Improved performance: As the data is located near the site of its demand, and given the inherent parallelism because of multiple copies, speed of database access may be good for di

Which database level is closest to the users, Which database level is close...

Which database level is closest to the users? External database level is closest to the users.

State the steps of object design, State the Steps of Object Design ...

State the Steps of Object Design Object design is a very iterative process in which various classes, relationships among objects are added when you move from one level to

Whst is logical schema, Whst is logical schema ? Logical schema is the ...

Whst is logical schema ? Logical schema is the entire database.

Briefly describe concurrency execution, Briefly describe concurrency execut...

Briefly describe concurrency execution? Lock - based protocols Locks There are several modes in which a data item may be locked in this section we restrict our attention

ENTITY DIAGRAMS IN FIRST NORMAL FORM, CAN SOMEONE HELP ME WITH ENTITY DIAGR...

CAN SOMEONE HELP ME WITH ENTITY DIAGRAMS IN FIRST NORMAL FORM?

Consistency, what do you mean by consistency in rdbms?

what do you mean by consistency in rdbms?

File manager-database management system, File Manager File manager ha...

File Manager File manager handles the allocation of space on disk storage. It starts and maintains the list of structures and indices described in the internal schema that is

Which operator is used to compare a value to a list literals, Which operato...

Which operator is used to compare a value to a list of literals values that have been specified? BETWEEN operator is used to compare a value to a list of literals values that h

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