Still celebrating National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17

x
?
Solved

SQL Query Calculation

Posted on 2016-08-22
7
Medium Priority
?
90 Views
Last Modified: 2016-08-29
I have the need to perform a calculation that takes Dollar Sales/Units Sold.

Here is how I calculate Dollar Sales in my query
SUM(CONVERT(MONEY, CASE WHEN ( ord_date BETWEEN @WkStartDate AND @WkEndDate )
                                THEN ( DATA.total_qty * DATA.price
                                       * DATA.co_rate )
                                ELSE ( 0 )
                           END)) AS [Wk_TY_Sales] ,

Open in new window



Here is how I calculate Unit Sales
SUM(CONVERT(MONEY, ( CASE WHEN ( ord_date BETWEEN @WkStartDate AND @WkEndDate
                                         AND DATA.line_status = 'I'
                                       ) --  CONDITIONAL
                                       THEN ( DATA.total_qty * DATA.price
                                              - ( DATA.total_qty * DATA.price )
                                              * ( ISNULL(zzxdiscr.disc_perc, 0)
                                                  / 100 ) )
                                  ELSE ( 0 )
                             END ) * DATA.co_rate)) AS [Wk TY Unit Sales] 

Open in new window


I'm just not certain of the syntax to combine these two so that I get the [Wk TY AUR] more importantly I need to account for the divide by zero error since some weeks have a 0.00 for dollar sales/unit sales
0
Comment
Question by:mburk1968
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
7 Comments
 
LVL 25

Accepted Solution

by:
jrb1 earned 1000 total points
ID: 41765894
Does this work for you?

, CASE WHEN SUM(CASE WHEN ( ord_date BETWEEN '8/21/2016' AND '8/27/2016'
                                         AND DATA.line_status = 'I'
                                       ) --  CONDITIONAL
                                       THEN ( DATA.total_qty * DATA.price
                                              - ( DATA.total_qty * DATA.price )
                                              * ( ISNULL(0, 0)
                                                  / 100 ) )
                                  ELSE ( 0 )
                             END * DATA.co_rate) = 0 THEN 0
     ELSE SUM(CASE WHEN ( ord_date BETWEEN '8/21/2016' AND '8/27/2016'
                                         AND DATA.line_status = 'I'
                                       ) --  CONDITIONAL
                                       THEN ( DATA.total_qty * DATA.price
                                              - ( DATA.total_qty * DATA.price )
                                              * ( ISNULL(0, 0)
                                                  / 100 ) )
                                  ELSE ( 0 )
                             END * DATA.co_rate) / SUM(CASE WHEN ( ord_date BETWEEN '8/21/2016' AND '8/27/2016'
                                         AND DATA.line_status = 'I'
                                       ) --  CONDITIONAL
                                       THEN ( DATA.total_qty * DATA.price
                                              - ( DATA.total_qty * DATA.price )
                                              * ( ISNULL(0, 0)
                                                  / 100 ) )
                                  ELSE ( 0 )
                             END * DATA.co_rate) END AS [Wk $ / Units]

If the Unit Sales are 0, this returns 0.  Otherwise it divides the two values.
0
 
LVL 44

Assisted Solution

by:zephyr_hex (Megan)
zephyr_hex (Megan) earned 500 total points
ID: 41765960
I prefer this pattern when dealing with operations on aggregations:

SELECT *, CASE WHEN u.Units = 0 THEN 0 ELSE u.Sales / u.Units END
FROM (SELECT 99 AS Sales, 7 AS Units) u

Open in new window


To apply this to your specific query:

SELECT *, CASE WHEN u.[Wk TY Unit Sales] = 0 THEN 0 ELSE u.k_TY_Sales / u.[Wk TY Unit Sales] END
FROM (/*  Your original query goes here  */) u

Open in new window

0
 
LVL 44

Assisted Solution

by:zephyr_hex (Megan)
zephyr_hex (Megan) earned 500 total points
ID: 41765964
You could also use a Common Table Expression:

;WITH cte (Units, Sales) AS (
SELECT 7 AS Units, 99 AS Sales

) SELECT *, CASE WHEN Units = 0 THEN 0 ELSE Sales/Units END 
FROM cte

Open in new window

0
Moving data to the cloud? Find out if you’re ready

Before moving to the cloud, it is important to carefully define your db needs, plan for the migration & understand prod. environment. This wp explains how to define what you need from a cloud provider, plan for the migration & what putting a cloud solution into practice entails.

 
LVL 70

Assisted Solution

by:Scott Pletcher
Scott Pletcher earned 500 total points
ID: 41765980
I prefer to push the calcs down into CROSS APPLYs in order to assign an alias name to them.  That keeps the main code less "cluttered" to me.

SELECT /*...,*/
    SUM(Wk_TY_Sales) AS Wk_TY_Sales,
    SUM([Wk TY Unit Sales]) AS [Wk TY Unit Sales],
    CASE WHEN SUM([Wk TY Unit Sales]) = 0.0 THEN 0.0
        ELSE SUM([Wk_TY_Sales]) / SUM([Wk TY Unit Sales]) END AS [Wk TY AUR]
FROM dbo.tablename
CROSS APPLY (
    SELECT CAST(CASE WHEN ( ord_date BETWEEN @WkStartDate AND @WkEndDate )
                THEN ( DATA.total_qty * DATA.price * DATA.co_rate )
                ELSE ( 0 )
                END AS money) AS [Wk_TY_Sales]
) AS assign_alias_names1
CROSS APPLY (
    SELECT CAST(CASE WHEN ( ord_date BETWEEN @WkStartDate AND @WkEndDate AND DATA.line_status = 'I' )
                THEN ( DATA.total_qty * DATA.price - ( DATA.total_qty * DATA.price ) * ( ISNULL(zzxdiscr.disc_perc, 0) / 100.0 ) )
                ELSE ( 0 )
                END * DATA.co_rate AS money) AS [Wk TY Unit Sales]
) AS assign_alias_names2
0
 

Author Comment

by:mburk1968
ID: 41766899
Thank you for all of your help.
0
 
LVL 44

Expert Comment

by:zephyr_hex (Megan)
ID: 41767213
@mburk1968 - if one or more of these responses answered your question, you can close the question and select the answers.
0
 

Author Comment

by:mburk1968
ID: 41774636
Thank you
0

Featured Post

What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

In the first part of this tutorial we will cover the prerequisites for installing SQL Server vNext on Linux.
It is possible to export the data of a SQL Table in SSMS and generate INSERT statements. It's neatly tucked away in the generate scripts option of a database.
Via a live example, show how to extract insert data into a SQL Server database table using the Import/Export option and Bulk Insert.
This videos aims to give the viewer a basic demonstration of how a user can query current session information by using the SYS_CONTEXT function

704 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question