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Fill In Missing Dates

Fill In Missing Dates

Fill In Missing Dates

(OP)
I have a SQL query that is pulling data from my sales table, showing total sales by day.  My problem is that some days our store is not open and there is no data for these dates (thus I get a result set that looks like this):

DATE    SALES
1/1     4554.44
1/2     4847.54
1/5     5824.54
1/6     4885.43
1/7     5775.35

I still want records to show a zero where there were no sales (like this):

DATE    SALES
1/1     4554.44
1/2     4847.54
1/3           0
1/4           0
1/5     5824.54
1/6     4885.43
1/7     5775.35

How can I do this?
Replies continue below

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RE: Fill In Missing Dates

What does your existing query look like? Also, what version of PSQL are you using?

Mirtheil
Certified Pervasive Developer
Certified Pervasive Technician
http://www.mirtheil.com

RE: Fill In Missing Dates

(OP)
Version 10, and I'm basically saying:

SELECT * FROM SALES WHERE TRANSDATE>=20060101

RE: Fill In Missing Dates

Try something like this....

Create a table with all dates (AllDates) and populate it with all the dates in the range you are interested in.... (You might want to save this for future use... handy as all get out.)


Select AD.TheDate, Sum(S.Sales)
From AllDates as AD Left outer Join AD.TheDate = S.Date
Group by AD.TheDate

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