Consider the following relation schemas: Department (dnumber, dname, employee_count), PK: dnumber. Employee (eid, fname, lname, salary, dno), PK: eid, FK: dno refs Department. Write triggers in PL/SQL that satisfy the following requirements: The employee_count column in the Department table records the current number of employees in each department. You should guarantee that, whenever an employee record is inserted, deleted or updated in the Employee table, the employee_count attribute always has the correct value for the affected department(s) in the Department table. Also, no department in the organization should have an average salary lower than 10,000. When the insertion, deletion or update of an employee record causes the average salary of a department to be lower than 10,000, the corresponding operation should be cancelled. You may create additional tables or views if needed. Note that your triggers will be graded based on both correctness and efficiency.

It is not a good idea in a cover letter to mention another person whom the employer knows.

Digital information is stored using a series of ones and zeros. computers are digital machines because they can only read information as on or off –1 or 0. this method of computation is known as the system

Creating "smart interfaces" in all sectors of industry, government, and the public arena is one of the fastest growing hct areas. these interfaces model, interpret, and analyze such human characteristics as speech, gesture, and vision. the field of biometrics, in which humans authenticate themselves to machines, is an area of considerable interest to hct practitioners. fingerprint scans are one of the most frequently used biometric options, and this article, biometric student identification: practical solutions for accountability & security in schools, makes a case for the implementation of fingerprint scans in schools. critique the article, and answer the following questions: according to the author, what are the main benefits of adopting fingerprint scans in schools for student identification? according to the author, what are the main drawbacks of adopting fingerprint scans in schools for student identification? do you agree with the author's assessment of the pl