Return data corresponding to date?

I need to return a set of data from various tables that corresponds to the month prior to the current month.
For example if i run the query in Feb 2010 it will list all the details for me in Jan 2010.
This should work no matter what the month is when the query is run.
select      IT220_HOLIDAYDETAILS.HOLCODE as HOLCODE,
      IT220_HOLIDAYDETAILS.COUNTRYVIS as COUNTRYVIS,
      IT220_SITEDETAILS.SITECODE as SITECODE,
      IT220_SITEDETAILS.SITENAME as SITENAME,
      IT220_DATEHOLIDAY.DEPARDATE as DEPARDATE
from      IT220_SITEDETAILS IT220_SITEDETAILS,
      IT220_LOOKUP_SITEHOLIDAY IT220_LOOKUP_SITEHOLIDAY,
      IT220_DATEHOLIDAY IT220_DATEHOLIDAY,
      IT220_HOLIDAYDETAILS IT220_HOLIDAYDETAILS
where   IT220_HOLIDAYDETAILS.HOLCODE=IT220_DATEHOLIDAY.HOLCODE
and      IT220_DATEHOLIDAY.HOLCODE=IT220_LOOKUP_SITEHOLIDAY.HOLCODE
and      IT220_LOOKUP_SITEHOLIDAY.SITECODE=IT220_SITEDETAILS.SITECODEThis is the code that retreives all the data i need, it includes a DeparDate column.
I think what i need to do is set a variable that contains a certain month date, i need to compare this date and say....
Select Somedata
When DeparDate<=currentmonth
(this way i can test the query works with data from different dates) However i only want it to retreive data for the one month preceesing the current month.
Is there anyway to do this?
Thanks in advance!
Edited by: Jay on 17-Nov-2010 07:37

Since this more of a SQL Query Issue, I would suggest you post it in the PL/Sql Sql Support forum..
Here's a hint...
I need to return a set of data from various tables that corresponds to the month prior to the current month.
For example if i run the query in Feb 2010 it will list all the details for me in Jan 2010.
This should work no matter what the month is when the query is run.
select      IT220_HOLIDAYDETAILS.HOLCODE as HOLCODE,
      IT220_HOLIDAYDETAILS.COUNTRYVIS as COUNTRYVIS,
      IT220_SITEDETAILS.SITECODE as SITECODE,
      IT220_SITEDETAILS.SITENAME as SITENAME,
      IT220_DATEHOLIDAY.DEPARDATE as DEPARDATE
from      IT220_SITEDETAILS IT220_SITEDETAILS,
      IT220_LOOKUP_SITEHOLIDAY IT220_LOOKUP_SITEHOLIDAY,
      IT220_DATEHOLIDAY IT220_DATEHOLIDAY,
      IT220_HOLIDAYDETAILS IT220_HOLIDAYDETAILS
where   IT220_HOLIDAYDETAILS.HOLCODE=IT220_DATEHOLIDAY.HOLCODE
and      IT220_DATEHOLIDAY.HOLCODE=IT220_LOOKUP_SITEHOLIDAY.HOLCODE
and      IT220_LOOKUP_SITEHOLIDAY.SITECODE=IT220_SITEDETAILS.SITECODE
In your where clause, determine what month you are currently in {sysdate} and date math between the DEPARDATE and the current date, use this as a clause.Thank you,
Tony Miller
Webster, TX
Never Surrender Dreams!
JMS

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