Count the months between now and hired date

    

SQL> CREATE TABLE EMP(
  2      EMPNO NUMBER(4) NOT NULL,
  3      ENAME VARCHAR2(10),
  4      JOB VARCHAR2(9),
  5      MGR NUMBER(4),
  6      HIREDATE DATE,
  7      SAL NUMBER(7, 2),
  8      COMM NUMBER(7, 2),
  9      DEPTNO NUMBER(2)
 10  );

Table created.

SQL>
SQL> INSERT INTO EMP VALUES(7369, 'SMITH', 'CLERK', 7902,TO_DATE('17-DEC-1980', 'DD-MON-YYYY'), 800, NULL, 20);

1 row created.

SQL> INSERT INTO EMP VALUES(7499, 'ALLEN', 'SALESMAN', 7698,TO_DATE('20-FEB-1981', 'DD-MON-YYYY'), 1600, 300, 30);

1 row created.

SQL> INSERT INTO EMP VALUES(7521, 'WARD', 'SALESMAN', 7698,TO_DATE('22-FEB-1981', 'DD-MON-YYYY'), 1250, 500, 30);

1 row created.

SQL> INSERT INTO EMP VALUES(7566, 'JONES', 'MANAGER', 7839,TO_DATE('2-APR-1981', 'DD-MON-YYYY'), 2975, NULL, 20);

1 row created.

SQL> INSERT INTO EMP VALUES(7654, 'MARTIN', 'SALESMAN', 7698,TO_DATE('28-SEP-1981', 'DD-MON-YYYY'), 1250, 1400, 30);

1 row created.

SQL> INSERT INTO EMP VALUES(7698, 'BLAKE', 'MANAGER', 7839,TO_DATE('1-MAY-1981', 'DD-MON-YYYY'), 2850, NULL, 30);

1 row created.

SQL> INSERT INTO EMP VALUES(7782, 'CLARK', 'MANAGER', 7839,TO_DATE('9-JUN-1981', 'DD-MON-YYYY'), 2450, NULL, 10);

1 row created.

SQL> INSERT INTO EMP VALUES(7788, 'SCOTT', 'ANALYST', 7566,TO_DATE('09-DEC-1982', 'DD-MON-YYYY'), 3000, NULL, 20);

1 row created.

SQL> INSERT INTO EMP VALUES(7839, 'KING', 'PRESIDENT', NULL,TO_DATE('17-NOV-1981', 'DD-MON-YYYY'), 5000, NULL, 10);

1 row created.

SQL> INSERT INTO EMP VALUES(7844, 'TURNER', 'SALESMAN', 7698,TO_DATE('8-SEP-1981', 'DD-MON-YYYY'), 1500, 0, 30);

1 row created.

SQL> INSERT INTO EMP VALUES(7876, 'ADAMS', 'CLERK', 7788,TO_DATE('12-JAN-1983', 'DD-MON-YYYY'), 1100, NULL, 20);

1 row created.

SQL> INSERT INTO EMP VALUES(7900, 'JAMES', 'CLERK', 7698,TO_DATE('3-DEC-1981', 'DD-MON-YYYY'), 950, NULL, 30);

1 row created.

SQL> INSERT INTO EMP VALUES(7902, 'FORD', 'ANALYST', 7566,TO_DATE('3-DEC-1981', 'DD-MON-YYYY'), 3000, NULL, 20);

1 row created.

SQL> INSERT INTO EMP VALUES(7934, 'MILLER', 'CLERK', 7782,TO_DATE('23-JAN-1982', 'DD-MON-YYYY'), 1300, NULL, 10);

1 row created.

SQL>
SQL>
SQL> select ename, hiredate, months_between(sysdate,hiredate)
  2         "Months" from emp;

ENAME      HIREDATE      Months
---------- --------- ----------
SMITH      17-DEC-80 346.302488
ALLEN      20-FEB-81 344.205714
WARD       22-FEB-81 344.141198
JONES      02-APR-81 342.786359
MARTIN     28-SEP-81  336.94765
BLAKE      01-MAY-81 341.818617
CLARK      09-JUN-81 340.560553
SCOTT      09-DEC-82 322.560553
KING       17-NOV-81 335.302488
TURNER     08-SEP-81 337.592811
ADAMS      12-JAN-83 321.463779

ENAME      HIREDATE      Months
---------- --------- ----------
JAMES      03-DEC-81 334.754101
FORD       03-DEC-81 334.754101
MILLER     23-JAN-82  333.10894

14 rows selected.

SQL>
SQL> drop table emp;

Table dropped.

Related examples in the same category

1.	Experimenting with MONTHS_BETWEEN
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3.	MONTHS_BETWEEN(x, y): get the number of months between x and y.
4.	MONTHS_BETWEEN: Returned result is a negative number of months
5.	MONTHS_BETWEEN with to_date function
6.	MONTHS_BETWEEN(SYSDATE, last_stock_date)
7.	ROUND(MONTHS_BETWEEN(SYSDATE, last_stock_date),0)
8.	select months_between( sysdate, date'1971-05-18' )
9.	select months_between( sysdate, date'2001-01-01' )
10.	Combine Months_between, to_date, to_char together

Count the months between now and hired date : MONTHS_BETWEEN « Date Timezone « Oracle PL / SQL

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