I am trying to multiply two fields together. Problem is, one is CHAR and one is DECIMAL.
OEAUDD.QTYSHIPPED = DECIMAL
LITERS.[VALUE] = CHAR
(This column holds more than just numbered values so I'm not able to permanently change the data type in that column. However, all of the data I'm pulling is numerical only and I need to be able to multiply it by qtyshipped)
Original code:
CONVERT (DOUBLE PRECISION, TABLENAME.QTYSHIPPED*LITERS.[VALUE]) AS 'TotalLitersSold'
This was working fine for a while and then suddenly started throwing error:
Msg 8114, Level 16, State 5, Line 3
Error converting data type varchar to numeric
Attempted:
CONVERT (DECIMAL,LITERS.[VALUE])
and got the same error.
Attempted:
CAST (LITERS.[VALUE] AS DECIMAL)
and got the same error.
Is there any way to change the data type of this column to decimal so I can multiply the two values together?
Thank you in advance for the assistance.
Use TRY_CONVERT() and use it on each value separately:
(TRY_CONVERT(DOUBLE PRECISION, TABLENAME.QTYSHIPPED) *
TRY_CONVERT(DOUBLE PRECISION, LITERS.[VALUE])
)
Related
I have a table that saves the size of file in the database when the user uploads it. I want to get the average value of all the size that the user uploaded.
I have the following column as example that shows the size in Mb's
|Size|
|1.20|
|0.25|
|0.50|
The result that I want as average is something like this
|Size|
|0.65|
When I'm trying to get the average I get this error
Msg 8117, Level 16, State 1, Line 15 Operand data type nchar is
invalid for avg operator.
EDIT
I have changed the column type to nvchar and get this error message when I'm converting it to int
Conversion failed when converting the nvarchar value '0,24' to data
type int.
When I tried it with a decimal I get this error message
Msg 8114, Level 16, State 5, Line 11
Error converting data type nvarchar to numeric.
What can I do to fix this problem.
The error shows you have 0,24 as a number in Swiss or German format.
This is different to 0.24 in British or US format.
So if the datatype was correct as decimal or float, 0,24 would not be allowed because SQL Server does not really deal with continental number formats. See SQL server with german regional settings for more
Then, neither is integer either of course so the int conversion fails.
So, fix the column datatype and the data to fix the error. And you can also avoid nasty client number to string conversions like 24E-2 which is only recognised as float.
And what if you have thousand separators too with mixed format? Imagine this dataset
123.456,79
234,567.89
34E5
0,24
0.24
2.3E-1
Fixing the data will require some LIKE searches. At least these to fix each format one by one.
LIKE '%,%.%'
LIKE '%.%,%'
LIKE '%,%'
LIKE '%E%'
0.24 won't convert to an int as it has decimal part.
You need to do CAST([size] as DECIMAL(9,2)) or some such...
Although we could really do with seeing your code :)
To use this CAST as part of an aggregate...
SELECT [database], AVG(CAST([size] as DECIMAL(9,2))) AS [Average of Size]
FROM table
GROUP BY [database]
Of course I don't know what your table or query actually is...
As others have said - if you are are going to be taking the average anyway then you will be better off not converting the number to an NVARCHAR or VARCHAR in the first place and working with the plain numeric fields.
As gbn notes this is 0,24 continental format so...
SELECT [database], AVG(CAST(REPLACE([size],',','.') as DECIMAL(9,2))) AS [Average of Size]
FROM table
GROUP BY [database]
SELECT logicalTime, traceValue, unitType, entName
FROM vwSimProjAgentTrace
WHERE valueType = 10
AND agentName ='AtisMesafesi'
AND ( entName = 'Hawk-1')
AND simName IN ('TipSenaryo1_0')
AND logicalTime IN (
SELECT logicalTime
FROM vwSimProjAgentTrace
WHERE valueType = 10 AND agentName ='AtisIrtifasi'
AND ( entName = 'Hawk-1')
AND simName IN ('TipSenaryo1_0')
AND CONVERT(FLOAT , traceValue) > 123
) ORDER BY simName, logicalTime
This is my sql command and table is a view table...
each time i put "convert(float...) part " i get
Msg 8114, Level 16, State 5, Line 1
Error converting data type nvarchar to float.
this error...
One (or more) of the rows has data in the traceValue field that cannot be converted to a float.
Make sure you've used the right combination of dots and commas to signal floating point values, as well as making sure you don't have pure invalid data (text for instance) in that field.
You can try this SQL to find the invalid rows, but there might be cases it won't handle:
SELECT * FROM vwSimProjAgentTrace WHERE NOT ISNUMERIC(traceValue)
You can find the documentation of ISNUMERIC here.
If you look in BoL (books online) at the convert command, you see that a nvarchar conversion to float is an implicit conversion. This means that only "float"-able values can be converted into a float. So, every numeric value (that is within the float range) can be converted. A non-numeric value can not be converted, which is quite logical.
Probably you have some non numeric values in your column. You might see them when you run your query without the convert. Look for something like comma vs dot. In a test scenario a comma instead of a dot gave me some problems.
For an example of isnumeric, look at this sqlfiddle
Trying to build a simple case statement using SQL Server 2008 and running across an issue giving me the following error message:
Msg 8114, Level 16, State 5, Line 6
Error converting data type varchar to numeric.
I've isolated the script causing the issue to the following:
CASE WHEN tPersonLocationHist.LocationCode = 'DC'
AND (tPersonJobHist.FullTimeEquivalent = 1)
AND (MONTH(tPersonStatusHist.LatestHireDate) < 10)
THEN tPersonStatusHist.NormalHoursPerWeek / 5
The tPersonStatusHist.NormalHoursPerWeek is formatted as decimal; however, I can't get it to calculate.
Any tips? The resulting calculation needs to be in decimal form (to two decimal digits).
Even if I change the THEN statement to just '7.5', it then returns:
Msg 245, Level 16, State 1, Line 6
Conversion failed when converting the varchar value '7.5' to data type int.
I've tried using CONVERT(decimal(4,2),tPersonJobHist.NormalHoursPerWeek * 7.5), but no luck on that either.
Only thing that's working is to do it as:
CONVERT(int,tPersonJobHist.NormalHoursPerWeek * 7.5), but then it is dropping the decimals and just giving the whole integer.
As you can probably tell, I'm new into SQL and still learning the rope, so any help you can give is much appreciated.
Are your other cases/else returning varchar? They should all return the same datatype. You may want to cast/convert them to be sure.
CAST(CONVERT(decimal(4,2),tPersonJobHist.NormalHoursPerWeek * 7.5) AS varchar(50))
First convert to decimal then do the division:
THEN CONVERT(decimal(4,2), tPersonStatusHist.NormalHoursPerWeek) / 5
Or cast is an option:
THEN CAST(tPersonStatusHist.NormalHoursPerWeek AS decimal(4,2)) / 5
Searched and searched on SO and can't figure it out
Tried CASTING each field as FLOAT to no avail, convert didn't get me any further
How can I get the below case clause to return the value stated in the THEN section?
Error:
Msg 8114, Level 16, State 5, Line 1
Error converting data type varchar to float.
section of my SQL query that makes it error:
When cust_trendd_w_costsv.terms_code like '%[%]%' and (prod.dbo.BTYS2012.average_days_pay) - (substring(cust_trendd_w_costsv.terms_code,3,2)) <= 5 THEN prod.dbo.cust_trendd_w_costsv.terms_code
average_days_pay = float
terms_code = char
Cheers!
Try to use ISNUMERIC to handle strings which can't be converted:
When cust_trendd_w_costsv.terms_code like '%[%]%'
and (prod.dbo.BTYS2012.average_days_pay) -
(case when isnumeric(substring(cust_trendd_w_costsv.terms_code,3,2))=1
then cast(substring(cust_trendd_w_costsv.terms_code,3,2) as float)
else 0
end)
<= 5 THEN prod.dbo.cust_trendd_w_costsv.terms_code
The issue that you're having is that you're specifically searching for strings that contain a % character, and then converting them (implicitly or explicitly) to float.
But strings containing % signs can't be converted to float whilst they still have a % in them. This also produces an error:
select CONVERT(float,'12.5%')
If you're wanting to convert to float, you'll need to remove the % sign first, something like:
CONVERT(float,REPLACE(terms_code,'%',''))
will just eliminate it. I'm not sure if there are any other characters in your terms_code column that may also trip it up.
You also need to be aware that SQL Server can quite aggressively re-order operations and so may attempt the above conversion on other strings in terms_code, even those not containing %. If that's the source of your error, then you need to prevent this aggressive re-ordering. Provided there are no aggregates involved, a CASE expression can usually avoid the worst of the issues - make sure that all strings that you don't want to deal with are eliminated by earlier WHEN clauses before you attempt your conversion
If your are sure that Substring Part returns a numeric value, You can Cast The substring(....) to Float :
.....and (prod.dbo.BTYS2012.average_days_pay) - (CAST(substring(cust_trendd_w_costsv.terms_code,3,2)) as float ) <= 5 ....
I am currently writing in MS-SQL to convert old data to a new table and one of the variable in the old table is a int. In the new table it has to be a decimal(10,3) because of the data now being entered. The old data also has some nulls also. When I convert the data using round to generate the new decimal I get a error:
Msg 8115, Level 16, State 8, Line 1
Arithmetic overflow error converting int to data type numeric.
using the following code:
insert into Data_Exchange_Claims_History (Qty_Dispense)
select convert(decimal(10,3),round(ISNULL(Qty_Dispense, 0), 3))
from dbo.Data_Exchange_Claims_History_old c
I assume the question is how it can fail;
An INT won't always fit into a DECIMAL(10,3).
DECIMAL(10,3) means a total of 10 digits, of which 3 are to the right of the decimal point.
In other words, it can only represent integers up to 9999999.
An INT can fit into DECIMAL 10,3 only if it is <= 9,999,999
9,999,999 will turn into 9,999,999.000 (10 total digits, 3 decimals).
After playing with the problem for a while it dawned on me that I just needed to move the decimal over three places so I divided the numbers by 1000 and it worked. The new query looks like:
insert into Data_Exchange_Claims_History (Qty_Dispense)
select convert(decimal(10,3),(Qty_Dispense/1000))
from dbo.Data_Exchange_Claims_History_old c
Thanks to everyone who contributed to this as it helped me look at the problem in a new light.