# Calculate number of days remaining in month use as filter DB2

I want to calculate the number of days remaining in the month and add to a decimal field and then use as a filter in DB2.
Like:

DECLARE @EDate date
SET @EDate  = GETDATE();
SELECT DAY(EOMONTH(@EDate )) AS DaysInMonth

SELECT
a.ACCT_ID,
a.ACCOUNT_NUM,
SUM(a.DYS_PAST_DUE + DaysInMonth) as DPD
FROM schema.table a
WHERE SUM(a.DYS_PAST_DUE + DaysInMonth) >= 60
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``````SELECT a.ACCT_ID,
a.ACCOUNT_NUM,
SUM(a.DYS_PAST_DUE + last_day(current_date) - current_date) as DPD
FROM schema.table a
WHERE SUM(a.DYS_PAST_DUE + last_day(current_date) - current_date) >= 60
``````

HTH,
DaveSlash
0
Some "flavors" of DB2 don't have a native last_day function. In case you're on one of those, this might help:

``````CREATE FUNCTION last_day(
inDate DATE
)
RETURNS DATE
LANGUAGE SQL
modifies sql data

BEGIN
DECLARE resultDate DATE;

-- If the incoming param is NULL, return NULL
IF (inDate IS NULL) THEN
RETURN null;
End If;

set resultDate = inDate + 1 month - day(inDate + 1 month) days;

-- Return the final output
RETURN resultDate;
END
``````
0
Author Commented:
Of course the first suggestion would be the way to go but I guess my DB2 doesn't have the last_day function. The Create Function will not work, I lack the privilege.
Any other ideas?
0
I suppose you could "in-line" the logic of the function:

WHERE SUM(a.DYS_PAST_DUE +  current_date + 1 month - day(current_date + 1 month) days - current_date) >= 60
0

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Commented:
The Create Function will not work, I lack the privilege.
If it's a "privilege" problem, that's completely separate from lack of a Last_Day() function. Which problem is it?

Why are you needing to create and run SQL while not having the privilege to create a function? That's like hiring an auto mechanic and leting him use various pliers and screwdrivers, but no wrench sets.
0
Author Commented:
Can't help the way the company does things
0
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