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How to sum in SQL removing varchar


How to sum in SQL removing varchar

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niladri.primalink
niladri.primalink
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Hi All,

I am trying to sum of amount (data type varchar) column but I am getting error

error converting data type varchar to float.

when I checked the data very carefully I found that there is an amount like C000214534. But when I am removing that varchar amount I am not getting error

select sum(CONVERT(float, ft.amount)) FROM filetransaction ft WHERE ft.fileid <>332 this query gives me the result.

is there any way in sql so that it can sum removing varchar? I do not want to update as everyday the data is inserted from the client's end.

How can I sum those data except the data where varchar type.

Please help!!
ChrisM@Work
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SELECT 
SUM(x.FloatAmount)
FROM filetransaction ft
CROSS APPLY (
SELECT FloatAmount = CASE
WHEN ISNUMERIC(ft.amount) = 1 THEN CAST(ft.amount AS FLOAT)
ELSE 0 END
) x
WHERE 1 = 1



NOTE: ISNUMERIC has limitations. Here's a good reference with workarounds.

“Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.” - Gail Shaw

For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden
Exploring Recursive CTEs by Example Dwain Camps
kapil_kk
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Chris solution will work Smile

_______________________________________________________________
To get quick answer follow this link:
http://www.sqlservercentral.com/articles/Best+Practices/61537/
Igor Micev
Igor Micev
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Hi

SELECT sum(CONVERT(float, ft.amount)) 
FROM filetransaction ft
WHERE ft.fileid <>332 and ISNUMERIC(ft.amount)=1



Check this also http://www.sqlservercentral.com/articles/IsNumeric/71512/

Regards
IgorMi

Igor Micev,
SQL Server developer at Seavus
My blog: www.igormicev.com
ChrisM@Work
ChrisM@Work
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IgorMi (5/3/2013)
Hi

SELECT sum(CONVERT(float, ft.amount)) 
FROM filetransaction ft
WHERE ft.fileid <>332 and ISNUMERIC(ft.amount)=1



Check this also http://www.sqlservercentral.com/articles/IsNumeric/71512/

Regards
IgorMi


Which of those two filters will SQL Server apply first?

“Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.” - Gail Shaw

For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden
Exploring Recursive CTEs by Example Dwain Camps
Igor Micev
Igor Micev
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ChrisM@Work (5/3/2013)
IgorMi (5/3/2013)
Hi

SELECT sum(CONVERT(float, ft.amount)) 
FROM filetransaction ft
WHERE ft.fileid <>332 and ISNUMERIC(ft.amount)=1



Check this also http://www.sqlservercentral.com/articles/IsNumeric/71512/

Regards
IgorMi


Which of those two filters will SQL Server apply first?


Filters in queries having WHERE clause connected by AND operators are evaluated from left to right in the order they are written.

Igor Micev,
SQL Server developer at Seavus
My blog: www.igormicev.com
ChrisM@Work
ChrisM@Work
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Group: General Forum Members
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IgorMi (5/3/2013)
ChrisM@Work (5/3/2013)
IgorMi (5/3/2013)
Hi

SELECT sum(CONVERT(float, ft.amount)) 
FROM filetransaction ft
WHERE ft.fileid <>332 and ISNUMERIC(ft.amount)=1



Check this also http://www.sqlservercentral.com/articles/IsNumeric/71512/

Regards
IgorMi


Which of those two filters will SQL Server apply first?


Queries having WHERE clause connected by AND operators are evaluated from left to right in the order they are written.


What is the source for this statement? It's completely wrong.

“Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.” - Gail Shaw

For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden
Exploring Recursive CTEs by Example Dwain Camps
Igor Micev
Igor Micev
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Group: General Forum Members
Points: 5900 Visits: 5080
ChrisM@Work (5/3/2013)
IgorMi (5/3/2013)
ChrisM@Work (5/3/2013)
IgorMi (5/3/2013)
Hi

SELECT sum(CONVERT(float, ft.amount)) 
FROM filetransaction ft
WHERE ft.fileid <>332 and ISNUMERIC(ft.amount)=1



Check this also http://www.sqlservercentral.com/articles/IsNumeric/71512/

Regards
IgorMi


Which of those two filters will SQL Server apply first?


Queries having WHERE clause connected by AND operators are evaluated from left to right in the order they are written.


What is the source for this statement? It's completely wrong.


Aham
I now see. It should be:

SELECT sum(CONVERT(float, ft.amount)) 
FROM filetransaction ft
WHERE ISNUMERIC(ft.amount)=1



I copied ft.fileid <>332 mistakenly.

Igor Micev,
SQL Server developer at Seavus
My blog: www.igormicev.com
ChrisM@Work
ChrisM@Work
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Group: General Forum Members
Points: 16236 Visits: 19551
IgorMi (5/3/2013)
ChrisM@Work (5/3/2013)
IgorMi (5/3/2013)
ChrisM@Work (5/3/2013)
IgorMi (5/3/2013)
Hi

SELECT sum(CONVERT(float, ft.amount)) 
FROM filetransaction ft
WHERE ft.fileid <>332 and ISNUMERIC(ft.amount)=1



Check this also http://www.sqlservercentral.com/articles/IsNumeric/71512/

Regards
IgorMi


Which of those two filters will SQL Server apply first?


Queries having WHERE clause connected by AND operators are evaluated from left to right in the order they are written.


What is the source for this statement? It's completely wrong.


Aham
I now see. It should be:

SELECT sum(CONVERT(float, ft.amount)) 
FROM filetransaction ft
WHERE ISNUMERIC(ft.amount)=1



I copied ft.fileid <>332 mistakenly.


Do you want to include the rows where ft.amount cannot be converted to a numeric datatype?

“Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.” - Gail Shaw

For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden
Exploring Recursive CTEs by Example Dwain Camps
Igor Micev
Igor Micev
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Group: General Forum Members
Points: 5900 Visits: 5080
ChrisM@Work (5/3/2013)
IgorMi (5/3/2013)
ChrisM@Work (5/3/2013)
IgorMi (5/3/2013)
ChrisM@Work (5/3/2013)
IgorMi (5/3/2013)
Hi

SELECT sum(CONVERT(float, ft.amount)) 
FROM filetransaction ft
WHERE ft.fileid <>332 and ISNUMERIC(ft.amount)=1



Check this also http://www.sqlservercentral.com/articles/IsNumeric/71512/

Regards
IgorMi


Which of those two filters will SQL Server apply first?


Queries having WHERE clause connected by AND operators are evaluated from left to right in the order they are written.


What is the source for this statement? It's completely wrong.


Aham
I now see. It should be:

SELECT sum(CONVERT(float, ft.amount)) 
FROM filetransaction ft
WHERE ISNUMERIC(ft.amount)=1



I copied ft.fileid <>332 mistakenly.


Do you want to include the rows where ft.amount cannot be converted to a numeric datatype?


No, but I posted "Check this also http://www.sqlservercentral.com/articles/IsNumeric/71512/"

Igor Micev,
SQL Server developer at Seavus
My blog: www.igormicev.com
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