| GENERAL |
| Data Types |
CREATE OR REPLACE TYPE wm_period AS OBJECT (
validfrom TIMESTAMP WITH TIME ZONE,
validtill TIMESTAMP WITH TIME ZONE); |
| Security |
conn / as sysdba
ALTER USER wmsys ACCOUNT UNLOCK IDENTIFIED BY wmsys; |
| |
| WM_CONCAT |
Cross-tabulates a comma delimited list |
WM_CONCAT(p1 IN VARCHAR2) RETURN VARCHAR2 |
CREATE TABLE t (
col1 VARCHAR2(5),
col2 VARCHAR2(20));
INSERT INTO t VALUES (111, 'This');
INSERT INTO t VALUES (111, 'is');
INSERT INTO t VALUES (111, 'a');
INSERT INTO t VALUES (111, 'test');
INSERT INTO t VALUES (222, 'This is not');
SELECT * FROM t;
col concat format a40
SELECT col1, wmsys.wm_concat(col2) CONCAT
FROM t
GROUP BY col1;
SELECT col1, TRANSLATE(wmsys.wm_concat(col2), 'A,', 'A ') CONCAT
FROM t
GROUP BY col1; |
| |
| WM_CONTAINS |
Checks if the first period contains the second period |
WM_CONTAINS(p1 IN WM_PERIOD, p2 IN WM_PERIOD) RETURN INTEGER; |
conn wmsys/wmsys
SELECT number_of_binds
FROM user_operators
WHERE owner = 'WMSYS'
AND operator_name = 'WM_CONTAINS';
set long 1000000
SELECT dbms_metadata.get_ddl('OPERATOR', 'WM_CONTAINS') FROM dual;
set serveroutput on
DECLARE
retval INTEGER;
p1b DATE := TO_DATE('01-JAN-2009');
p1e DATE := TO_DATE('05-JAN-2009');
p2b DATE := TO_DATE('01-JAN-2009');
p2e DATE := TO_DATE('03-JAN-2009');
BEGIN
SELECT WM_CONTAINS(WM_PERIOD(p1b, p1e), WM_PERIOD(p2b, p2e))
INTO retval
FROM dual;
dbms_output.put_line(retval);
p1b := TO_DATE('02-JAN-2009');
p1e := TO_DATE('06-JAN-2009');
SELECT WM_CONTAINS(WM_PERIOD(p1b, p1e), WM_PERIOD(p2b, p2e))
INTO retval
FROM dual;
dbms_output.put_line(retval);
END;
/ |
| |
| WM_EQUALS |
Checks if two periods are equal (that is, their start and end times are the same) |
WM_EQUALS(p1 IN WM_PERIOD, p2 IN WM_PERIOD) RETURN INTEGER; |
conn wmsys/wmsys
SELECT number_of_binds
FROM user_operators
WHERE owner = 'WMSYS'
AND operator_name = 'WM_EQUALS';
set long 1000000
SELECT dbms_metadata.get_ddl('OPERATOR', 'WM_EQUALS') FROM dual;
set serveroutput on
DECLARE
retval INTEGER;
p1b DATE := TO_DATE('01-JAN-2009');
p1e DATE := TO_DATE('03-JAN-2009');
p2b DATE := TO_DATE('01-JAN-2009');
p2e DATE := TO_DATE('03-JAN-2009');
BEGIN
SELECT WM_EQUALS(WM_PERIOD(p1b, p1e), WM_PERIOD(p2b, p2e))
INTO retval
FROM dual;
dbms_output.put_line(retval);
p1b := TO_DATE('01-JAN-2009');
p1e := TO_DATE('04-JAN-2009');
SELECT WM_EQUALS(WM_PERIOD(p1b, p1e), WM_PERIOD(p2b, p2e))
INTO retval
FROM dual;
dbms_output.put_line(retval);
END;
/ |
| |
| WM_GREATERTHAN |
Checks if the start of the first period is greater than (that is, later than) the end of the second period |
WM_GREATERTHAN(p1 IN WM_PERIOD, p2 IN WM_PERIOD) RETURN INTEGER; |
conn wmsys/wmsys
SELECT number_of_binds
FROM user_operators
WHERE owner = 'WMSYS'
AND operator_name = 'WM_GREATERTHAN';
set long 1000000
SELECT dbms_metadata.get_ddl('OPERATOR', 'WM_GREATERTHAN') FROM dual;
set serveroutput on
DECLARE
retval INTEGER;
p1b DATE := TO_DATE('01-FEB-2009');
p1e DATE := TO_DATE('03-FEB-2009');
p2b DATE := TO_DATE('01-JAN-2009');
p2e DATE := TO_DATE('31-JAN-2009');
BEGIN
SELECT WM_GREATERTHAN(WM_PERIOD(p1b, p1e), WM_PERIOD(p2b, p2e))
INTO retval
FROM dual;
dbms_output.put_line(retval);
p2b := TO_DATE('02-FEB-2009');
p2e := TO_DATE('31-DEC-2009');
SELECT WM_GREATERTHAN(WM_PERIOD(p1b, p1e), WM_PERIOD(p2b, p2e))
INTO retval
FROM dual;
dbms_output.put_line(retval);
END;
/ |
| |
| WM_INTERSECTION |
Returns the intersection of the two periods, that is, the time range common to both periods |
WM_INTERSECTION(p1 IN WM_PERIOD, p2 IN WM_PERIOD) RETURN WM_PERIOD; |
conn wmsys/wmsys
SELECT number_of_binds
FROM user_operators
WHERE owner = 'WMSYS'
AND operator_name = 'WM_INTERSECTION';
set long 1000000
SELECT dbms_metadata.get_ddl('OPERATOR', 'WM_INTERSECTION') FROM dual;
set serveroutput on
DECLARE
retval WM_PERIOD;
p1b DATE := TO_DATE('01-JAN-2009');
p1e DATE := TO_DATE('10-JAN-2009');
p2b DATE := TO_DATE('08-JAN-2009');
p2e DATE := TO_DATE('12-JAN-2009');
BEGIN
SELECT WM_INTERSECTION(WM_PERIOD(p1b, p1e), WM_PERIOD(p2b, p2e))
INTO retval
FROM dual;
dbms_output.put_line(retval.validfrom);
dbms_output.put_line(retval.validtill);
END;
/ |
| |
| WM_LDIFF |
Returns the difference between the two periods on the left (that is, earlier in time) |
WM_LDIFF(p1 IN WM_PERIOD, p2 IN WM_PERIOD) RETURN WM_PERIOD; |
conn wmsys/wmsys
SELECT number_of_binds
FROM user_operators
WHERE owner = 'WMSYS'
AND operator_name = 'WM_LDIFF';
set long 1000000
SELECT dbms_metadata.get_ddl('OPERATOR', 'WM_LDIFF') FROM dual;
set serveroutput on
DECLARE
retval WM_PERIOD;
p1b DATE := TO_DATE('01-NOV-2008');
p1e DATE := TO_DATE('31-DEC-2008');
p2b DATE := TO_DATE('29-NOV-2008');
p2e DATE := TO_DATE('01-DEC-2008');
BEGIN
SELECT WM_LDIFF(WM_PERIOD(p1b, p1e), WM_PERIOD(p2b, p2e))
INTO retval
FROM dual;
dbms_output.put_line(retval.validfrom);
dbms_output.put_line(retval.validtill);
END;
/ |
| |
| WM_LESSTHAN |
| Checks if the end of the first period is less than (that is, earlier than) the start of the second period |
WM_LESSTHAN(p1 IN WM_PERIOD, p2 IN WM_PERIOD) RETURN INTEGER; |
conn wmsys/wmsys
SELECT number_of_binds
FROM user_operators
WHERE owner = 'WMSYS'
AND operator_name = 'WM_LESSTHAN';
set long 1000000
SELECT dbms_metadata.get_ddl('OPERATOR', 'WM_LESSTHAN') FROM dual;
set serveroutput on
DECLARE
retval INTEGER;
p1b DATE := TO_DATE('01-JAN-2009');
p1e DATE := TO_DATE('02-JAN-2009');
p2b DATE := TO_DATE('03-JAN-2009');
p2e DATE := TO_DATE('16-JAN-2009');
BEGIN
SELECT WM_LESSTHAN(WM_PERIOD(p1b, p1e), WM_PERIOD(p2b, p2e))
INTO retval
FROM dual;
dbms_output.put_line(retval);
p1b := TO_DATE('04-JAN-2009');
p1e := TO_DATE('10-JAN-2009');
SELECT WM_LESSTHAN(WM_PERIOD(p1b, p1e), WM_PERIOD(p2b, p2e))
INTO retval
FROM dual;
dbms_output.put_line(retval);
END;
/ |
| |
| WM_MEETS |
Checks if the end of the first period is the start of the second period |
WM_MEETS(p1 IN WM_PERIOD, p2 IN WM_PERIOD) RETURN INTEGER; |
conn wmsys/wmsys
SELECT number_of_binds
FROM user_operators
WHERE owner = 'WMSYS'
AND operator_name = 'WM_MEETS';
set long 1000000
SELECT dbms_metadata.get_ddl('OPERATOR', 'WM_OVERLAPS') FROM dual;
set serveroutput on
DECLARE
retval INTEGER;
p1b DATE := TO_DATE('01-JAN-2009');
p1e DATE := TO_DATE('03-JAN-2009');
p2b DATE := TO_DATE('03-JAN-2009');
p2e DATE := TO_DATE('06-JAN-2009');
BEGIN
SELECT WM_MEETS(WM_PERIOD(p1b, p1e), WM_PERIOD(p2b, p2e))
INTO retval
FROM dual;
dbms_output.put_line(retval);
p1b := TO_DATE('01-JAN-2009');
p1e := TO_DATE('04-JAN-2009');
SELECT WM_MEETS(WM_PERIOD(p1b, p1e), WM_PERIOD(p2b, p2e))
INTO retval
FROM dual;
dbms_output.put_line(retval);
END;
/ |
| |
| WM_OVERLAPS |
Checks if two periods overlap |
WM_OVERLAPS(p1 IN WM_PERIOD, p2 IN WM_PERIOD) RETURN NUMBER; |
conn wmsys/wmsys
SELECT number_of_binds
FROM user_operators
WHERE owner = 'WMSYS'
AND operator_name = 'WM_OVERLAPS';
set long 1000000
SELECT dbms_metadata.get_ddl('OPERATOR', 'WM_OVERLAPS') FROM dual;
set serveroutput on
DECLARE
retval INTEGER;
p1b DATE := TO_DATE('01-JAN-2009');
p1e DATE := TO_DATE('31-JAN-2009');
p2b DATE := TO_DATE('31-DEC-2008');
p2e DATE := TO_DATE('02-JAN-2009');
BEGIN
SELECT WM_OVERLAPS(WM_PERIOD(p1b, p1e), WM_PERIOD(p2b, p2e))
INTO retval
FROM dual;
dbms_output.put_line(retval);
p1b := TO_DATE('03-JAN-2009');
p1e := TO_DATE('31-JAN-2009');
SELECT WM_OVERLAPS(WM_PERIOD(p1b, p1e), WM_PERIOD(p2b, p2e))
INTO retval
FROM dual;
dbms_output.put_line(retval);
END;
/ |
| |
| WM_RDIFF |
Returns the difference between the two periods on the right (that is, later in time) |
WM_RDIFF(p1 IN WM_PERIOD, p2 IN WM_PERIOD) RETURN WM_PERIOD; |
conn wmsys/wmsys
SELECT number_of_binds
FROM user_operators
WHERE owner = 'WMSYS'
AND operator_name = 'WM_RDIFF';
set long 1000000
SELECT dbms_metadata.get_ddl('OPERATOR', 'WM_RDIFF') FROM dual;
set serveroutput on
DECLARE
retval WM_PERIOD;
p1b DATE := TO_DATE('01-JAN-2009');
p1e DATE := TO_DATE('31-DEC-2009');
p2b DATE := TO_DATE('12-JAN-2008');
p2e DATE := TO_DATE('16-JAN-2009');
BEGIN
SELECT WM_RDIFF(WM_PERIOD(p1b, p1e), WM_PERIOD(p2b, p2e))
INTO retval
FROM dual;
dbms_output.put_line(retval.validfrom);
dbms_output.put_line(retval.validtill);
END;
/ |
