Query not giving me the output I want

Question

Hi there,
I have the following query:
select rent_no, rent_end, count(*) as "NUMBER OF DRIVERS"
from rental where (rent_end IS NOT NULL) AND (rent_end between (select to_date(sysdate) from dual) and (select to_date(sysdate-7) from dual))
group by rent_no, rent_end
order by rent_end;
but it's not outputting my desired output. Basically, I want to view the selected columns where the RENT_END value is in the last seven days. So my output is supposed to look something like this:
RENT_NO RENT_END NUMBER OF DRIVERS
12345679 07-OCT-09 1
As you can see, the rent_end value is within the last seven days, but for some reason, it's not outputting at all. can anyone help?

Answer 1

I have a couple of recommendations:
select to_date(sysdate) from dualSYSDATE is already a date value, there is no need to use TO_DATE() to convert it to a date. In addition, you can just replace the whole select statement with SYSDATE.
rent_end between (select to_date(sysdate) from dual) and (select to_date(sysdate-7) from dual)This is probably the main reason why your query is not returning any rows. The BETWEEN is not setup correctly. It should be this:
BETWEEN <LOWER BOUND> AND <UPPER BOUND>However, you have yours flipped backwards. It should probably be:
RENT_END BETWEEN TRUNC(SYSDATE) - 7 AND TRUNC(SYSDATE+1) - 1/86400 /* 23:59:59 on the current day */HTH!