PL/SQL returning a Sql query in a report form

Question

I am producing a simple form to display the number of non-conforming items produced per shift. I use some PL/SQL code to generate the appropriate start and end dates for the shift then build up a query to return.
I am having problems when I use a date mask (DD-MM-YYYY HH24:MI:SS), the :MI section of the date mask is seen as bound variables. If I restrict the time to HH24 without minutes or seconds, it works fine.
Does anyone have any thoughts on how to overcome this problem?

Answer 1

This is the code I am using. As the shifts actually starts at 07:15 and 19:15, I need to add the minutes for it to be correct but they fail.
DECLARE
startDateStr VARCHAR2(25);
endDateStr VARCHAR2(25);
midniteStr VARCHAR2(25);
sqlQuery VARCHAR(1000);
BEGIN
-- Set up the start and end dates
startDateStr := to_char(sysdate, 'DD-MON-YYYY') || ' 07:15:00';
endDateStr := to_char(sysdate, 'DD-MON-YYYY') || ' 19:15:00';
midniteStr := to_char(sysdate, 'DD-MON-YYYY') || ' 00:00:01';
if (sysdate > to_date(startDateStr, 'DD-MON-YYYY HH24:MI:SS')
and sysdate < to_date(endDateStr, 'DD-MON-YYYY HH24:MI:SS'))
then
startDateStr := to_char(sysdate, 'DD-MON-YYYY') || ' 07';
endDateStr := to_char(sysdate, 'DD-MON-YYYY') || ' 19';
else
if (sysdate > to_date(midniteStr, 'DD-MON-YYYY HH24:MI:SS')
and sysdate < to_date(startDateStr, 'DD-MON-YYYY HH24:MI:SS'))
then
startDateStr := to_char(sysdate - 1,'DD-MON-YYYY') || ' 19';
endDateStr := to_char(sysdate, 'DD-MON-YYYY') || ' 07';
else
startDateStr := to_char(sysdate, 'DD-MON-YYYY') || ' 19';
endDateStr := to_char(sysdate+1, 'DD-MON-YYYY') || ' 07';
end if;
end if;
sqlQuery := 'select count(*), defectsource_s, disposition_s
from [email protected] ncr
where creationdate_t > to_date('
|| q'#'#' || startDateStr ||
q'#', 'DD-MON-YYYY HH24')
and creationdate_t <= to_date('#' || endDateStr ||
q'#', 'DD-MON-YYYY HH24')
and disposition_s in ('Scrap', 'Rework'#' ||
') group by defectsource_s, disposition_s
order by disposition_s, defectsource_s;' ;
return sqlQuery;
END;