DJ Stone

asked on

# dividing integer numbers

I have three separate SQL queries and I'm trying to divide but my results =0. It should = 100.

SQL1 SQL2

select sum(cast(measurement as int)) AS KPIValue select sum(AssetStatusHistory.DownTime) AS KPIValue

From WOTask From AssetStatusHistory

inner join wo on wo.wopk=WOTask.wopk LEFT JOIN Asset on Asset.AssetPk =

WHERE AssetStatusHistory.AssetPK

Measurement NOT LIKE '%[^0-9]%' RESULT = 0

RESULT = 2130

So I subtract SQL 1 from SQL2 then divide by SQL1 *100 which should give me 100%

Any suggestions!

SQL1 SQL2

select sum(cast(measurement as int)) AS KPIValue select sum(AssetStatusHistory.Dow

From WOTask From AssetStatusHistory

inner join wo on wo.wopk=WOTask.wopk LEFT JOIN Asset on Asset.AssetPk =

WHERE AssetStatusHistory.AssetPK

Measurement NOT LIKE '%[^0-9]%' RESULT = 0

RESULT = 2130

So I subtract SQL 1 from SQL2 then divide by SQL1 *100 which should give me 100%

Any suggestions!

can you show us how are you getting your final result?

ASKER

Hello arana, my final result just returns 0.

Yes i understand that part, I want to see the code on how are you calculating, doing your substraction and division

ASKER

I am creating this as a KPI within a third party software

select sum(cast(measurement as float)) AS KPIValueFrom WOTaskinner join wo on wo.wopk=WOTask.wopk WHERE Measurement NOT LIKE '[^0-9]' ANDWO.TargetDate>=DATEADD(mm, DATEDIFF(mm, 0, GETDATE()), 0) 1AND SpecificationPK= 140AND wo.RepairCenterID = 'HDWV' AND WO.RepairCenterPK IN (52) SUBTRACT select sum(AssetStatusHistory.DownTime) AS KPIValueFrom AssetStatusHistory LEFT JOIN Asset on Asset.AssetPk = AssetStatusHistory.AssetPK WHERE assetstatushistory.shutdowndate >=DATEADD(mm, DATEDIFF(mm, 0, GETDATE()), 0) 1 AND Asset.Priority = 1 AND asset.RepairCenterID = 'HDWV' AND Asset.RepairCenterPK IN (52) DIVIDEselect ISNULL(sum(cast(measurement as int)), '') AS KPIValueFrom WOTaskinner join wo on wo.wopk=WOTask.wopk WHERE Measurement NOT LIKE '[^0-9]' ANDWO.TargetDate>=DATEADD(mm, DATEDIFF(mm, 0, GETDATE()), 0) 1 AND SpecificationPK= 140 AND wo.RepairCenterID = 'HDWV' AND WO.RepairCenterPK IN (52)

select sum(cast(measurement as float)) AS KPIValueFrom WOTaskinner join wo on wo.wopk=WOTask.wopk WHERE Measurement NOT LIKE '[^0-9]' ANDWO.TargetDate>=DATEADD(

I still dont see where you are multiplying by 100, but I think i know whats going on, ORDER OF PRECEDENCE of substract and divide,

try using parentheses in each part ( i still think the multiply part missing)

try using parentheses in each part ( i still think the multiply part missing)

```
SELECT
(
sum(cast(measurement AS FLOAT)) AS KPIValue
FROM WOTaskinner
JOIN wo ON wo.wopk = WOTask.wopk
WHERE Measurement NOT LIKE '[^0-9]'
AND WO.TargetDate >= DATEADD(mm, DATEDIFF(mm, 0, GETDATE()), 0) 1
AND SpecificationPK = 140
AND wo.RepairCenterID = 'HDWV'
AND WO.RepairCenterPK IN (52) SUBTRACT
SELECT sum(AssetStatusHistory.DownTime) AS KPIValueFrom AssetStatusHistory
LEFT JOIN Asset ON Asset.AssetPk = AssetStatusHistory.AssetPK
WHERE assetstatushistory.shutdowndate >= DATEADD(mm, DATEDIFF(mm, 0, GETDATE()), 0) 1
AND Asset.Priority = 1
AND asset.RepairCenterID = 'HDWV'
AND Asset.RepairCenterPK IN (52)
)
DIVIDE
SELECT ISNULL(sum(cast(measurement AS INT)), '') AS KPIValueFrom WOTaskinner
JOIN wo ON wo.wopk = WOTask.wopk
WHERE Measurement NOT LIKE '[^0-9]' ANDWO.TargetDate >= DATEADD(mm, DATEDIFF(mm, 0, GETDATE()), 0) 1
AND SpecificationPK = 140
AND wo.RepairCenterID = 'HDWV'
AND WO.RepairCenterPK IN (52)
```

ASKER

Each sql query is placed in a separate

I am unable to place the query in parentheses.

Query-image-2.PNG

I am unable to place the query in parentheses.

Query-image-2.PNG

ASKER

Is it because the measurement table is an integer?

It is most likely because everytime you do operations without parentheses they are made in the following order

Multiplication, division, and remainders

then

Addition and subtraction

Oh another thing I noticed, your sql2 doesn't return 0 it returns nothing or null which is not the same, and may also be the cause of your problems.

so try

isnull(sum(AssetStatusHistory.DownTime),0)

or maybe (is this db2 you are using?)

IFNULL(sum(AssetStatusHistory.DownTime),0)

or just make sure somehow your query returns at least a 0 and not an empty value or null.

I dont know how KPI puts the queries together, but seems from your previous post that the multiplication is getting done before the substraction leading you to a 0 value (no matter how much operations you do if you multiply by 0 you get 0)

Multiplication, division, and remainders

then

Addition and subtraction

Oh another thing I noticed, your sql2 doesn't return 0 it returns nothing or null which is not the same, and may also be the cause of your problems.

so try

isnull(sum(AssetStatusHist

or maybe (is this db2 you are using?)

IFNULL(sum(AssetStatusHist

or just make sure somehow your query returns at least a 0 and not an empty value or null.

I dont know how KPI puts the queries together, but seems from your previous post that the multiplication is getting done before the substraction leading you to a 0 value (no matter how much operations you do if you multiply by 0 you get 0)

Can you provide the result of SQL1 and SQL2?

ASKER CERTIFIED SOLUTION

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Pretty confident my comment is the T-SQL answer to this question, but since there are other factors in play I'm open to interpretation as far as the correct split here.

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