в 13:45, 26 мая 2010

2010-05-26T13:45:19Z

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2010-05-26T10:01:40Z

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==Add any number of months to hired date==



<source lang="sql">

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>

</source>

==numtoyminterval(100000, "YEAR")==



<source lang="sql">

SQL>
SQL> select numtoyminterval(100000, "YEAR") from dual;
NUMTOYMINTERVAL(100000,"YEAR")
---------------------------------------------------------------------------
+000100000-00
SQL>

</source>

==NUMTOYMINTERVAL(3.25, "MONTH")==



<source lang="sql">

SQL> select NUMTOYMINTERVAL(3.25, "MONTH") from dual;
NUMTOYMINTERVAL(3.25,"MONTH")
---------------------------------------------------------------------------
+000000000-03
SQL>

</source>

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



<source lang="sql">

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>

</source>

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



<source lang="sql">

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>

</source>

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