To answer this question, let's examine the code provided.
The given code defines a package called bonus
with two functions: calc_bonus
and calc_salary
. The package body then implements these functions.
Option A) You can call the BONUS.CALC_SALARY packaged function from an INSERT command against the EMPLOYEES table.
This option is incorrect because the calc_salary
function is not designed to be used in an INSERT command. It is meant to calculate and return the salary based on the employee ID.
Option B) You can call the BONUS.CALC_SALARY packaged function from a SELECT command against the EMPLOYEES table.
This option is correct. The calc_salary
function can be called in a SELECT command to retrieve the calculated salary for a specific employee ID.
Option C) You can call the BONUS.CALC_SALARY packaged function from a DELETE command against the EMPLOYEES table.
This option is incorrect. The calc_salary
function is not designed to be used in a DELETE command. It is meant to calculate and return the salary based on the employee ID.
Option D) You can call the BONUS.CALC_SALARY packaged function from an UPDATE command against the EMPLOYEES table.
This option is incorrect. The calc_salary
function is not designed to be used in an UPDATE command. It is meant to calculate and return the salary based on the employee ID.
Therefore, the correct answer is B) You can call the BONUS.CALC_SALARY packaged function from a SELECT command against the EMPLOYEES table.