Sql query to select number data from varchar data column

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Hi All,
I have a table column of type varchar, which contains data in string like (yes,No..etc) and float data like (10.15,10,1,5...etc). I want to select only those rows which has float values.

please suggest a sql query or any inbuilt sql function.

Thanks..

Posted 24-Oct-13 0:50am

Umashankar Yadav

Updated 24-Oct-13 2:08am

Amol_B

v2

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4 solutions

Solution 4

Please check
http://technet.microsoft.com/en-us/library/aa933213%28v=sql.80%29.aspx[^]

Posted 24-Oct-13 2:11am

Amol_B

Solution 2

Try this:

SELECT columnname FROM table WHERE columnname not like '%[^0-9]%'

Posted 24-Oct-13 1:07am

Tom Marvolo Riddle

Updated 24-Oct-13 1:14am

v2

Solution 1

select floatcolumn from tablename

Posted 24-Oct-13 1:05am

Ranesh M Raj

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Umashankar Yadav 24-Oct-13 9:16am

Thanks to all..

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thatraja · Accepted Answer · 2013-10-24T01:12:00

Solution 3

Use ISNUMERIC[^]. From this link,
The following example uses ISNUMERIC to return all the postal codes that are not numeric values.

SQL

USE AdventureWorks2012;
GO
SELECT City, PostalCode
FROM Person.Address
WHERE ISNUMERIC(PostalCode)<> 1;
GO

Change the query based on your requirement.

Posted 24-Oct-13 1:12am

thatraja