PLSQL and to_date query returning error...

Question

I'm sure this has something to do with a conversion which I'm not understanding however :
Metric_date field is a DATE type field in the database.
DECLARE
disknum NUMBER;
diskcost NUMBER;
fystart VARCHAR(20):='01-JUN-'||(:FINANCE_FY-1);
fyend VARCHAR(20):='31-MAY-'||:FINANCE_FY;
BEGIN
select metric_value into disknum from
   (SELECT metric_value from core_metrics where metric_subname='TIER_1_DISK_NUMBER' and metric_date between to_date(fystart,'DD-MON-YYYY') and to_date(fyend,'DD-MON-YYYY')  order by metric_date DESC)
where rownum=1;
select metric_value into diskcost from
(SELECT metric_value from core_metrics where metric_subname='TIER_1_COST_PER_DISK' and metric_date between to_date(fystart,'DD-MON-YYYY') and to_date(fyend,'DD-MON-YYYY') order by metric_date DESC)
where rownum=1;
RETURN to_char((disknum*diskcost)/5,'$999,999,999');
END;When executed I get
Error computing item source value for page item P17_VMAX_TIER1_DISK_COST_SUM.
ORA-01840: input value not long enough for date format
Technical Info (only visible for developers)
is_internal_error: true
apex_error_code: WWV_FLOW_FORMS.ITEM_SOURCE_ERR
ora_sqlcode: -1840
ora_sqlerrm: ORA-01840: input value not long enough for date format
component.type: APEX_APPLICATION_PAGE_ITEMS
component.id: 14284527609957008
component.name: P17_VMAX_TIER1_DISK_COST_SUM
error_backtrace:
ORA-06512: at line 8
ORA-06512: at line 19
ORA-06512: at "SYS.DBMS_SYS_SQL", line 1926
ORA-06512: at "SYS.WWV_DBMS_SQL", line 966
ORA-06512: at "SYS.WWV_DBMS_SQL", line 992
ORA-06512: at "APEX_040100.WWV_FLOW_DYNAMIC_EXEC", line 503
ORA-06512: at "APEX_040100.WWV_FLOW_FORMS", line 611Edited by: bostonmacosx on Mar 28, 2013 2:42 PM

Answer 1

Thanks for all the help and I'm close to getting this nailed down:
DECLARE
defnumber NUMBER:=0;
disknum NUMBER;
diskcost NUMBER;
fystart VARCHAR(20):='01-JUN-'||(:FINANCE_FY-1);
fyend VARCHAR(20):='31-MAY-'||:FINANCE_FY;
BEGIN
if :FINANCE_FY is NULL THEN
return 'hello';
end if;
select metric_value into disknum from
   (SELECT metric_value from core_metrics where metric_subname='TIER_1_DISK_NUMBER' and metric_date between to_date(fystart,'DD-MON-YYYY') and to_date(fyend,'DD-MON-YYYY')  order by metric_date DESC)
where rownum=1;
select metric_value into diskcost from
(SELECT metric_value from core_metrics where metric_subname='TIER_1_COST_PER_DISK' and metric_date between to_date(fystart,'DD-MON-YYYY') and to_date(fyend,'DD-MON-YYYY') order by metric_date DESC)
where rownum=1;
RETURN to_char((disknum*diskcost)/5,'$999,999,999');
EXCEPTION
WHEN NO_DATA_FOUND THEN
    return disknum;
END; What I am running into though is that I want to return some text if :Finance_FY is not set to let the user know what is happening. However the RETURN is not allowing me to return anything except one of my variables....in fact I can't even RETURN defnumber.
I thought I could return a string or a number.
The above is a function for a Page Item of type "Display Only"
The error I get is
Error computing item source value for page item P17_VMAX_OTHER_THAN_DISK.
ORA-06502: PL/SQL: numeric or value error
Technical Info (only visible for developers)
is_internal_error: true
apex_error_code: WWV_FLOW_FORMS.ITEM_SOURCE_ERR
ora_sqlcode: -6502
ora_sqlerrm: ORA-06502: PL/SQL: numeric or value error
component.type: APEX_APPLICATION_PAGE_ITEMS
component.id: 14298319812267057
component.name: P17_VMAX_OTHER_THAN_DISK
error_backtrace:
ORA-06512: at line 3
ORA-06512: at line 7
ORA-06512: at "SYS.DBMS_SYS_SQL", line 1926
ORA-06512: at "SYS.WWV_DBMS_SQL", line 966
ORA-06512: at "SYS.WWV_DBMS_SQL", line 992
ORA-06512: at "APEX_040100.WWV_FLOW_DYNAMIC_EXEC", line 503
ORA-06512: at "APEX_040100.WWV_FLOW_FORMS", line 611