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SQL Date formulas to be able to use Query to mine data every 6 Months

Posted on 2016-09-15
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Last Modified: 2016-09-17
Your assistance would be truly appreciated with this formula.

The query below is used to extract customer data for a specific time range.

I would like to set up a job that runs every six months using a query to generate a file with the current data.

In this query I am seeking to run I would like to use "b.docdate>='1/01/2016' and b.docdate<='6/30/2016' " but in a formula format that would run a report 6 Months back.

I would then fire the query up on 1/1 (for time period 7/1 to 12/31)  and 7/1  (for 1/1 to 6/30) to generate the two yearly reports needed.

Your help with building a workable query is greatly appreciated.

Current Full Query:
Select
b.CustId,
a.Name,
b.RefNbr,
c.shipperid,
b.DocDate,
c.totinvc,
'' as SpaceHolder,
c.TotTax,
(c.totinvc-B.DocBal) As payments,
B.DocBal,
(c.totinvc-c.TotTax) AS subtotal,
c.TotMerch as RebateAmount,
(c.TotMerch*.05) as RebatePaid


from Customer a, ARDoc b, soshipheader c
where a.custid=b.custid and b.refnbr=c.invcnbr and
a.SlsperId like '%114'and
b.docdate>='1/01/2016' and b.docdate<='12/31/2016' -----> here is the line I would like to use a formula in place
order by a.CustId,b.RefNbr
0
Comment
Question by:armgon
6 Comments
 
LVL 41

Expert Comment

by:Sharath
ID: 41800740
check this.
Select
b.CustId,
a.Name,
b.RefNbr,
c.shipperid,
b.DocDate,
c.totinvc,
'' as SpaceHolder,
c.TotTax,
(c.totinvc-B.DocBal) As payments,
B.DocBal,
(c.totinvc-c.TotTax) AS subtotal,
c.TotMerch as RebateAmount,
(c.TotMerch*.05) as RebatePaid


from Customer a, ARDoc b, soshipheader c
where a.custid=b.custid and b.refnbr=c.invcnbr and
a.SlsperId like '%114'
and ((CONVERT(varchar(5),b.docdate,1) <= '06/30' and b.docdate>='1/01/2016' and b.docdate<='06/30/2016')
 or (CONVERT(varchar(5),b.docdate,1) > '06/30' and b.docdate>='07/01/2016' and b.docdate<='12/31/2016'))

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LVL 28

Assisted Solution

by:Pawan Kumar
Pawan Kumar earned 500 total points
ID: 41800834
Here is the dynamic logic to get data for last 6 months..

Select
b.CustId,
a.Name,
b.RefNbr,
c.shipperid,
b.DocDate,
c.totinvc,
'' as SpaceHolder,
c.TotTax,
(c.totinvc-B.DocBal) As payments,
B.DocBal,
(c.totinvc-c.TotTax) AS subtotal,
c.TotMerch as RebateAmount,
(c.TotMerch*.05) as RebatePaid


from Customer a, ARDoc b, soshipheader c
where a.custid=b.custid and b.refnbr=c.invcnbr and
a.SlsperId like '%114'and 
b.docdate>= dateadd(m, -6, getdate() - datepart(d, getdate()) + 1) and b.docdate<= CAST(GETDATE() AS DATE) -----> here is the line I would like to use a formula in place
order by a.CustId,b.RefNbr

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1
 
LVL 28

Accepted Solution

by:
Pawan Kumar earned 500 total points
ID: 41800835
@Author - Please let me know if you need more help on this.
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LVL 69

Expert Comment

by:Scott Pletcher
ID: 41801657
WHERE condition for dates is below.  Do not use a function on the column in the table to do the comparison, as that could very severely hurt performance.

...
WHERE ...
/* get dates in the full six-month period before the current month, no matter what day of month it currently is. */
/* for example, if run on *any* day in Jan, this would select dates from Jun 1 thru Dec 31.  
b.docdate>=DATEADD(MONTH, DATEDIFF(MONTH, 0, GETDATE()) - 6, 0) and b.docdate<DATEADD(MONTH, DATEDIFF(MONTH, 0, GETDATE()), 0)
...
1
 

Author Comment

by:armgon
ID: 41803053
Thank you for all of your input.
0
 

Author Closing Comment

by:armgon
ID: 41803054
I was able to complete the query and set up an automated job that fires twice a year for the data I need.

Thanks all.
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