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Re: Time Date formatting

From: <djordan_at_notes.primeco.com>
Date: Fri, 11 Aug 2000 11:34:14 -0500
Message-Id: <10586.114378@fatcity.com> 





Use the sysdate hours/minutes portion to calculate the difference between your
times.    First, you must truncate the hh:mi:ss portion to store the results in.
For example, there is a 3 hour difference in the two dates below.    The
returned value from the query correctly handles this.    However, this code will
not handle anything greater that 24 hours.....



SQL> SELECT * FROM MY_DATE_TABLE;


DATE1              DATE2



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



11-AUG-00 08:00:00 11-AUG-00 11:00:00



 SQL> select to_char(trunc(sysdate)+(date2-date1),'hh24:mi') xdate
   from my_date_table;



XDATE





03:00










"Peter Hazelton" <peterhazelton_at_hotmail.com> on 08/10/2000 01:45:13 PM



Please respond to ORACLE-L_at_fatcity.com

                                                              
                                                              
                                                              
 To:      Multiple recipients of list ORACLE-L                
          <ORACLE-L_at_fatcity.com>                              
                                                              
 cc:      (bcc: David Jordan/HQ/PCS PrimeCo)                  
                                                              
                                                              
                                                              
 Subject: Time Date formatting                                
                                                              









What I am trying to do is just take a date formatted out to the hour and
minute and subtract it from another date formatted out to the hour and
minute. Most of the dates I deal with are less than one day and I need to
know the difference in times between them. Here is my output:





SQL> ed


Wrote file afiedt.buf


  1  create table date_table


  2  (date1 date,


  3* date2 date)


SQL> /


Table created.



SQL> ed


Wrote file afiedt.buf


  1  insert into date_table


  2  (date1)


  3* values (sysdate)


SQL> /


1 row created.



SQL> select to_char(date1,'DD-MON-YYYY HH24:MI:SS')
  2  from date_table;



TO_CHAR(DATE1,'DD-MON-YYYYHH24:MI:SS')





06-AUG-2000 12:44:52


SQL> ed


Wrote file afiedt.buf


  1  insert into date_table


  2  (date2)


  3* values (sysdate)


SQL> /


1 row created.



SQL> commit;



Commit complete.



SQL> ed


Wrote file afiedt.buf


  1  select to_char(date2,'DD-MON-YYYY


HH24:MI:SS')-to_char(date1,'DD-MON-YYYY HH24:MI:SS')
  2* from date_table


SQL> /



ERROR:



ORA-01722: invalid number





no rows selected



SQL> ed


Wrote file afiedt.buf


  1  select to_date(date2,'DD-MON-YYYY


HH24:MI:SS')-to_date(date1,'DD-MON-YYYY HH24:MI:SS')
  2* from date_table


SQL> /



ERROR:



ORA-01840: input value not long enough for date format





no rows selected



SQL> select to_char(date1,'DD-MON-YYYY HH24:MI:SS')
  2  from date_table;



TO_CHAR(DATE1,'DD-MON-YYYYHH24:MI:SS')





06-AUG-2000 12:44:52



SQL> ed


Wrote file afiedt.buf


  1  select to_char(date2,'DD-MON-YYYY HH24:MI:SS')
  2* from date_table


SQL> /


TO_CHAR(DATE2,'DD-MON-YYYYHH24:MI:SS')






06-AUG-2000 12:46:13


SQL> ed


Wrote file afiedt.buf


  1  select to_date(date2,'DD-MON-YYYY HH24:MI:SS')
  2* from date_table


SQL> /



ERROR:



ORA-01840: input value not long enough for date format





no rows selected



SQL> ed


Wrote file afiedt.buf


  1  select to_char(to_date(date2,'DD-MON-YYYY
HH24:MI:SS'))-to_char(to_date(date1,'DD-MON-YYYY HH24
  2* from date_table


SQL> /



ERROR:



ORA-01840: input value not long enough for date format





no rows selected



SQL> ed


Wrote file afiedt.buf


  1  select to_date(to_char(date2,'DD-MON-YYYY HH24:MI:SS'),'DD-MON-YYYY
HH24:MI:SS'))-to_date(to_ch


  2* from date_table


SQL> /



select to_date(to_char(date2,'DD-MON-YYYY HH24:MI:SS'),'DD-MON-YYYY
HH24:MI:SS'))-to_date(to_char(da



    *


ERROR at line 1:


ORA-00923: FROM keyword not found where expected




SQL> ed


Wrote file afiedt.buf


  1  select to_date(to_char(date2,'DD-MON-YYYY HH24:MI:SS'),'DD-MON-YYYY
HH24:MI:SS')-to_date(to_cha


  2* from date_table


SQL> /


TO_DATE(TO_CHAR(DATE2,'DD-MON-YYYYHH24:MI:SS'),'DD-MON-YYYYHH24:MI:SS')-TO_DATE(TO_CHAR(DATE1,'DD-MO










SQL> ed


Wrote file afiedt.buf


  1  insert into date_table


  2  (date1)


  3* values (to_date(sysdate )


SQL> /



values (to_date(sysdate )

                        *




ERROR at line 3:


ORA-00917: missing comma




SQL> ed


Wrote file afiedt.buf


  1  insert into date_table


  2  (date1)


  3* values (to_date(sysdate,'DD-MON-YYYY HH24:MI:SS'))
SQL> /



insert into date_table


*


ERROR at line 1:


ORA-01840: input value not long enough for date format




SQL> ed


Wrote file afiedt.buf


  1  insert into date_table


  2  (date1)


  3* values (to_char(sysdate,'DD-MON-YYYY HH24:MI:SS'))
SQL> /



values (to_char(sysdate,'DD-MON-YYYY HH24:MI:SS'))


        *


ERROR at line 3:


ORA-01830: date format picture ends before converting entire input string




SQL> ed


Wrote file afiedt.buf


  1  insert into date_table


  2  (date1)


  3  values (


  4* (sysdate,'DD-MON-YYYY HH24:MI:SS'))

SQL>
SQL>
SQL>
SQL> ed




Wrote file afiedt.buf


  1  select to_char(date1,'DD-MON-YYYY


HH24:MI:SS'),to_char(date2,'DD-MON-YYYY HH24:MI:SS')
  2* from date_table


SQL> /



TO_CHAR(DATE1,'DD-MON-YYYYHH24:MI:SS')


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

TO_CHAR(DATE2,'DD-MON-YYYYHH24:MI:SS')


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

06-AUG-2000 12:44:52







06-AUG-2000 12:46:13



SQL> ed


Wrote file afiedt.buf


  1  select to_date(to_char(date2,'DD-MON-YYYY HH24:MI:SS'),'DD-MON-YYYY
HH24:MI:SS')-


  2         to_date(to_char(date1,'DD-MON-YYYY HH24:MI:SS'),'DD-MON-YYYY
HH24:MI:SS')


  3* from date_table


SQL> /


TO_DATE(TO_CHAR(DATE2,'DD-MON-YYYYHH24:MI:SS'),'DD-MON-YYYYHH24:MI:SS')-TO_DATE(TO_CHAR(DATE1,'DD-MO










SQL> ed


Wrote file afiedt.buf


  1  select to_date(to_char(date2,'DD-MON-YYYY HH24:MI:SS'),'DD-MON-YYYY
HH24:MI:SS')-


  2         to_date(to_char(date1,'DD-MON-YYYY HH24:MI:SS'),'DD-MON-YYYY
HH24:MI:SS')


  3* from date_table


SQL>



SQL> /


TO_DATE(TO_CHAR(DATE2,'DD-MON-YYYYHH24:MI:SS'),'DD-MON-YYYYHH24:MI:SS')-TO_DATE(TO_CHAR(DATE1,'DD-MO










SQL> select to_date(sysdate,'DD-MON-YYYYHH24:MI:SS')
  2  from dual;


ERROR:



ORA-01840: input value not long enough for date format





no rows selected



SQL> ed


Wrote file afiedt.buf


  1  select to_char(sysdate,'DD-MON-YYYYHH24:MI:SS')
  2* from dual


SQL> /


TO_CHAR(SYSDATE,'DD-MON-YYYYHH24:MI:SS')





06-AUG-200013:05:23


SQL> ed


Wrote file afiedt.buf


  1  select


to_date(to_char(sysdate,'DD-MON-YYYYHH24:MI:SS'),'DD-MON-YYYYHH24:MI:SS')
  2* from dual


SQL> /


TO_DATE(T





06-AUG-00


SQL>



SQL> ed


Wrote file afiedt.buf


  1  select


to_date(to_char(sysdate,'DD-MON-YYYYHH24:MI:SS'),'DD-MON-YYYYHH24:MI:SS')
  2* from dual


SQL>



SQL> /


TO_DATE(T





06-AUG-00


SQL>




If there is anyone out there who can help me with this, I would really
appreciate it.



Peter Hazelton





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Received on Fri Aug 11 2000 - 11:34:14 CDT












Original text of this message













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