Oracle PL/SQL/Date Timezone/numtoyminterval

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Add any number of months to hired date

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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, hiredate +

 2         numtoyminterval(250,"month") "250 Months" from emp;

ENAME HIREDATE 250 Month


--------- ---------

SMITH 17-DEC-80 17-OCT-01 ALLEN 20-FEB-81 20-DEC-01 WARD 22-FEB-81 22-DEC-01 JONES 02-APR-81 02-FEB-02 MARTIN 28-SEP-81 28-JUL-02 BLAKE 01-MAY-81 01-MAR-02 CLARK 09-JUN-81 09-APR-02 SCOTT 09-DEC-82 09-OCT-03 KING 17-NOV-81 17-SEP-02 TURNER 08-SEP-81 08-JUL-02 ADAMS 12-JAN-83 12-NOV-03 ENAME HIREDATE 250 Month


--------- ---------

JAMES 03-DEC-81 03-OCT-02 FORD 03-DEC-81 03-OCT-02 MILLER 23-JAN-82 23-NOV-02 14 rows selected. SQL> drop table emp; Table dropped. SQL>


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numtoyminterval(100000, "YEAR")

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SQL> SQL> select numtoyminterval(100000, "YEAR") from dual; NUMTOYMINTERVAL(100000,"YEAR")


+000100000-00 SQL>


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NUMTOYMINTERVAL(3.25, "MONTH")

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SQL> select NUMTOYMINTERVAL(3.25, "MONTH") from dual; NUMTOYMINTERVAL(3.25,"MONTH")


+000000000-03 SQL>


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NUMTOYMINTERVAL(x): Convert the number x to an INTERVAL YEAR TO MONTH

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SQL> SQL> -- NUMTOYMINTERVAL(x): Convert the number x to an INTERVAL YEAR TO MONTH. SQL> SQL> select numtoyminterval(100000000, "MONTH") from dual; NUMTOYMINTERVAL(100000000,"MONTH")


+008333333-04 SQL>


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NUMTOYMINTERVAL(x, interval_unit): convert the number x to an INTERVAL YEAR TO MONTH with the interval for x supplied in interval_unit

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SQL> --NUMTOYMINTERVAL(x, interval_unit): convert the number x to an INTERVAL YEAR TO MONTH with the interval for x supplied in interval_unit SQL> SQL> SELECT NUMTOYMINTERVAL(1.5, "YEAR") FROM dual; NUMTOYMINTERVAL(1.5,"YEAR")


+000000001-06 SQL>


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