Oracle Error Ora-01820
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ORA-01820 tips Oracle Database Tips by Burleson Consulting March 26, 2015 Question: I am gating this ORA-01820 error when trying to display a date: SQL> select to_date('01-jan-04','DD/MONTH/YEAR') from dual; select to_date('01-jan-04','DD/MONTH/YEAR') from dual* ERROR at line 1: ORA-01820: format code cannot appear in date input format What causes the ORA-01820 error? These are the data columns I want displayed? Answer: First, use the oerr utility on your server to look-up your ORA-01820 error: oracle> oerr ora 01820 ORA-01820: Format code cannot appear in date input formatCause: A date specification contained an invalid format code. Only the following may be specified when entering a date: year, month, day, hours, minutes, seconds, Julian day, A.M./P.M. and B.C./A.D.Action: Remove the invalid format code from the date specification. As you see, this is an invalid data format code, as Oracle does not support a MONTH or YEAR format code. See here for the valid Oracle data display formats select to_date('01-jan-04','DD/MONTH/YEAR') from dual In your case, I assume that you want DD/MON/YYYY select to_date('01-jan-04','DD/MON/YYYY') from dual Remember, all DATE datatypes are stored in a special internal format, complete to the hundredth of a second. You can change the display using nls_date_format also. Get the Complete O200803, 'YYYYWW' ) FROM DUAL;SELECT TO_DATE( 200803, 'YYYYWW' ) FROM DUAL *ERROR at line 1:ORA-01820: format code cannot appear in date input formatThen tried one "W" 1* SELECT TO_DATE( 200803, 'YYYYW' ) FROM DUALCJUSTICE@TESTING>/SELECT TO_DATE( 200803, 'YYYYW' ) FROM DUAL *ERROR at line 1:ORA-01820: format code cannot appear in date input formatThen "IW" 1* SELECT TO_DATE( 200803, 'YYYYIW' ) FROM DUALCJUSTICE@TESTING>/SELECT TO_DATE( 200803, 'YYYYIW' ) FROM DUAL *ERROR at line 1:ORA-01820: format code cannot appear in date input formatDatetime Format models in 10gR2Lo and behold the Error messages manual didn't have it (at least where I would expect it).Put it up on twitter and Gary Myers responded:That's http://www.dba-oracle.com/t_ora_01820.htm good to know.Now I just need to figure out how to transform that week into a month.I'm trying to generate some test data for a quick...test. I switched to using SYSDATE as that would allow more more flexibility to transform the other way.SELECT DISTINCT TO_NUMBER( TO_CHAR( r, 'YYYYWW' ) ) fiscal_year_week, TO_NUMBER( TO_CHAR( r, 'YYYYMM' ) ) fiscal_year_monthFROM ( SELECT SYSDATE - rownum r FROM dual CONNECT BY LEVEL <= SYSDATE - http://www.oraclenerd.com/2010/04/ora-01820-format-code-cannot-appear-in.html TRUNC( SYSDATE, 'YEAR' ) )Which gave me exactly what I neededFISCAL_YEAR_WEEK FISCAL_YEAR_MONTH---------------- ----------------- 201015 201004 201014 201004 201012 201003 201011 201003 201007 201002 201006 201002 201002 201001 201016 201004 201010 201003 201003 201001 201017 201004 201013 201003 201009 201003 201009 201002 201005 201002 201004 201001 201013 201004 201008 201002 201005 201001 201001 201001 Posted by chet justice at 4/28/2010 07:48:00 PM Email ThisBlogThis!Share to TwitterShare to FacebookShare to Pinterest Labels: ORA-01820, oradb, sql 10 comments: Noons said... If you really wanted to use week number, this is a possible workaround:SQL> select to_date(17*7,'DDD') from dual;TO_DATE(17*7,'DDD')--------------------2010-APR-29 00:00:001 row selected.In a nutshell: multiply the week number by 7 and flip that back to a date using the 'DDD' (day of year) converter code.Then you could use the last conversion in your example to bring it back as a YYYYMM using a to_char, which accepts all the codes.Go to http://download.oracle.com/docs/cd/B19306_01/server.102/b14200/sql_elements004.htm#i34924and scroll down a bit to see all possible combinations of codes and which can be used in a to_date function - the ones with "yes" in the second column of the table. April 28, 2010 at 9:01 PM oraclenerd said... @noons,Ah...I see that column now. I didn't read closely enough.That's an interesting method...never thought of it that way. I enjoy working with date math (now anyway, I used
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Pages ... ORACLENERD: ORA-01820: format code cannot appear in date input format Wednesday, April 28, 2010 ORA-01820: format ... at line 1: ORA-01820: format code cannot appear in date input formatDatetime Format models in 10gR2 Lo ... * ERROR at line 1: ORA-01820: format code cannot appear in date input formatThen tried one "W" ... ORACLENERD: ORA-01820 http://www.oraclenerd.com/search/label/ORA-01820 Similar Pages ... at line 1: ORA-01820: format code cannot appear in date input formatDatetime Format models in 10gR2 Lo ... Wednesday, April 28, 2010 ORA-01820: format code cannot appear in date input format I learned something new ... * ERROR at line 1: ORA-01820: format code cannot appear in date input formatThen tried one "W" ... Rafu on db: date http://rafudb.blogspot.de/search/label/date Similar Pages ... dual; ORA-01820: format code cannot appear in date input format 01820. 00000 - "format code cannot appear ... appear in date input format" A date specification contained an invalid format code. Only the following may ... db: date Rafu on db Showing posts with label date. Show all posts Showing posts with label date. Show ... Rafu on db: ISO year week day to date http://rafudb.blogspot.de/2010/10/iso-year-week-day-to-date.html Similar Pages ... dual; ORA-01820: format code cannot appear in date input format 01820. 00000 - "format code cannot appear ... appear in date input format" A date specification contained an invalid format code. Only the following may ... year week day to date Rafu on db 2010-10-07 ISO year week day to date Trying to get date out of three of ... How to Convert ISO Weeks to Dates in Oracle | mkjay http://mkjay.wordpress.com/2013/10/09/how-to-convert-iso-weeks-to-dates-in-oracle/ Similar Pages ... dual; ORA-01820: format code cannot appear in date input format 0