Choose the letter of the correct answer based on the table EMPLOYEES as shown below.

Table 1.0 EMPLOYEES

Which of the following query is correct which will display the same output as shown below?

1.

Select one:

a. SELECT COUNT(DISTINCT MANAGER_ID) AS "NO. OF MANAGER_ID" FROM EMPLOYEES;

b. SELECT COUNT *(DISTINCT MANAGER_ID) AS "NO. OF MANAGER_ID" FROM EMPLOYEES;

c. SELECT COUNT(MANAGER_ID) AS "NO. OF MANAGER_ID" FROM EMPLOYEES;

d. SELECT COUNT(DISTINCT MANAGER_ID) AS NO. OF MANAGER_ID FROM EMPLOYEES;

2.

Select one:

a. SELECT COUNT(*) FROM EMPLOYEES;

b. SELECT COUNT ALL FROM EMPLOYEES;

c. SELECT * FROM EMPLOYEES;

3.

Select one:

a. SELECT COUNT(MANAGER_ID) NO. OF MANAGER_ID FROM EMPLOYEES;

b. SELECT COUNT *(MANAGER_ID) AS "NO. OF MANAGER_ID" FROM EMPLOYEES;

c. SELECT COUNT(MANAGER_ID) AS "NO. OF MANAGER_ID" FROM EMPLOYEES;

d. SELECT COUNTDISTINCT(MANAGER_ID) AS "NO. OF MANAGER_ID" FROM EMPLOYEES;

4.

Select one:

a. SELECT MAX(LASTNAME||''||FIRSTNAME) AS NAME, MAX(SALARY)

FROM EMPLOYEES;

b. SELECT MAX(LASTNAME||','||FIRSTNAME) AS NAME, MAX(SALARY)

FROM EMPLOYEES;

c. SELECT MAX(LASTNAME||','||FIRSTNAME) AS NAME, MIN(SALARY)

FROM EMPLOYEES;

d. SELECT MAX(LASTNAME||FIRSTNAME) AS NAME, MAX(SALARY)

FROM EMPLOYEES;

5.

Select one:

a. SELECT JOB_ID, COUNTDISTINCT(JOB_ID)"NO. OF JOB_ID", SUM(SALARY), AVG(SALARY)

FROM EMPLOYEES

GROUP BY JOB_ID;

b. SELECT JOB_ID, COUNT(JOB_ID)"NO. OF JOB_ID", SUM(SALARY), AVG(SALARY)

FROM EMPLOYEES

GROUP BY JOB_ID;

c. SELECT JOB_ID, COUNT(JOB_ID)"NO. OF JOB_ID", SUM(SALARY), AVG(SALARY)

FROM EMPLOYEES;

d. SELECT JOB_ID, COUNT*(JOB_ID)"NO. OF JOB_ID", SUM(SALARY), AVG(SALARY)

FROM EMPLOYEES

GROUP BY JOB_ID;

EMPLOYEE ID FIRSTNAME LASTNAME JOB ID SALARY MANAGER ID DEPARTMENT ID 24000 17000 17000 90 90 90 100 STEVEN 101 NENA 102 LEX 03 ALEXANDER HUNOLD 104 BRUCE 107 DIANA 124 KEVIN 141 TRINA 142 CURTIS 43 RANDALLMATOS 144 PETER 149 ELENI 174 ELLEN 176 JONATHAN TAYLOR 78 KIMBERLEY GRANT 200 JENNIFER WHALEN AD ASST 201 MICHAELHARTSTEIN MK MAN 202 PAT 205 SHELLEYHIGGINS AC MGR 206 WILLIAM GIETZ KING KOCHAR E HAAN AD VP AD PRES AD VP 100 100 101 102 103 100 124 124 124 124 100 149 149 149 101 100 201 101 205 IT PROG IT PROG 6000 4200 5800 3500 3100 2600 2500 10500 11000 8600 7000 4400 13000 6000 12000 8300 ERNST LORENT2 IT PROG MOURGOS ST MAN RAJS DAVIES 50 ST CLERK ST CLERK ST CLERR ST CLERK 50 50 50 80 50 80 VARGAS LOTKEY SA MAN ABEL SA REP SA REP SA REP 10 20 20 110 110 FAY MK REP AC ACCOUNT