please use sql to answer the following question as the question shown below 3. Create a procedure, ADD_EMPLOYEE, to insert a new employee into the EMPLOYEEStable. The procedure should call a VALID_DEPTID function to check whether thedepartment ID specified for the new employee exists in the DEPARTMENTS table.a. Create a function called VALID_DEEPTID to validate a specified department ID anda BOOLEAN value of TRUE if the department exists.Dractb. Create the ADD_EMPLOYEE procedure to add an employee to the EMPLOYEES table.The row should be added to the EMPLOYEES table if the VALID_DEPTID functionreturms TRUE; otherwise, alert the user with an appropriate message. Provide thefollowing parameters:- first_name- last_nameemailjob: Use 'SA_REP' as the defaultmgr: Use 145 as the defaultsal: Use 1000 as the defaultcomm: Use o as the defaultdeptid: Use 30 as the defaultUse the EMPLOYEES_SEQ sequence to set the employee_id column- Set the hire_date column to TRUNC (SYSDATE)c. Call ADD_EMPLOYEE for the name Jane Harris in department 15, leaving otherparameters with their default values. What is the result?d. Add another employee named Joe Harris in department 80, leaving remaininparameters with their default values. What is the result?edem

Solution 3(a): SQL code : CREATE OR REPLACE FUNCTION valid_deptid(p_deptid IN…

3. Create a procedure, ADD_EMPLOYEE, to insert a new employee into the EMPLOYEES table. The procedure should call a VALID_DEPTID function to check whether the department ID specified for the new employee exists in the DEPARTMENTS table. a. Create a function called VALID_DEPTID to validate a specified department ID and a BOOLEAN value of TRUE if the department exists. Dract b. Create the ADD_EMPLOYEE procedure to add an employee to the EMPLOYEES table. The row should be added to the EMPLOYEES table if the VALID_DEPTID function returns TRUE; otherwise, alert the user with an appropriate message. Provide the following parameters: - first_name - last_name - email job: Use 'SA_REP' as the default mgr: Use 145 as the default sal: Use 1000 as the default comm: Use o as the default - deptid: Use 30 as the default - Use the EMPLOYEES_SEQ sequence to set the employee_id column - Set the hire_date column to TRUNC (SYSDATE) c. Call ADD_EMPLOYEE for the name Jane Harris in department 15, leaving other parameters with their default values. What is the result? d. Add another employee named Joe Harris in department 80, leaving remaining parameters with their default values. What is the result? my