How to group data

Question

I want to display the total number of employees and, of that total, the number of employees hired in 1995,1996,1997 and 1998. Create appropriate column headingslike shown below(is it possible?)
[b]No.ofemployees 1995 1996 1997
20 3 5 6
employee table structure
EMPLOYEE_ID NOT NULL NUMBER(6)
FIRST_NAME VARCHAR2(20)
LAST_NAME NOT NULL VARCHAR2(25)
EMAIL NOT NULL VARCHAR2(25)
PHONE_NUMBER VARCHAR2(20)
HIRE_DATE NOT NULL DATE
JOB_ID NOT NULL VARCHAR2(10)
SALARY NUMBER(8,2)
COMMISSION_PCT NUMBER(2,2)
MANAGER_ID NUMBER(6)
DEPARTMENT_ID NUMBER(4)
No.ofemployees 1995 1996 1997
20 3 5 6

Answer 1

select count(*),
  count(decode(extract(year from hiredate),1980,1)) "1980",
  count(decode(extract(year from hiredate),1981,1)) "1981",
  count(decode(extract(year from hiredate),1982,1)) "1982",
  count(decode(extract(year from hiredate),1987,1)) "1987"
from emp;
  COUNT(*)       1980       1981       1982       1987
        14          1         10          1          2