Convert Varchar To Numeric Error Sql Server
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| Related Tips: More > Data Types Problem We've been importing data into VARCHAR columns to verify valid character types before moving into our error converting varchar to numeric in sql server 2008 final destination table and we ran across some decimal values that wouldn't CAST sql server convert varchar to numeric example or CONVERT even though they appeared to be decimal values (other decimal values from the same source converted without
Convert Varchar To Numeric In Sql Server 2012
errors). We received the message "Error converting data type varchar to numeric" and even when we tried to import them as numbers they also failed. In addition, all values failed the
Convert Varchar To Numeric Sql Server 2008 R2
ISNUMERIC function even though the values look numeric (like 1.00) and when we copy these values into Google Spreadsheets and run functions on them, we get numerical answers. How can we load these problem values? Solution Here is an example of the issue I was facing. In the below screenshot the data looks correct, but when I checked to make sure the sql server convert float to int values were numeric using a CAST function I got the following error message. Here are some of the things I noticed: They appear as numerical characters, yet don't convert.If we copy the values directly and do a direct SELECT CAST('1.00000' AS DECIMAL(22,8)), they convert without error.If they come with extra spaces, no trimming function works to remove the error. We seldom stumble on these types of data, but they can create encumbrances for developers, so it's good to know a work-around when transforming these VARCHARs into numerical data points. What differs about these data, compared to other times when facing issues with converting numerical VARCHARs to numerical data points is that all of them will fail the ISNUMERIC (for verifying), CAST, CONVERT, TRY_CONVERT and TRY_PARSE functions (the latter two returning NULLs). In other cases, when converting VARCHARs to numerical data points, we can use these other functions to solve the problem. In the below five examples, we expect to receive the error "Error converting data type varchar to numeric" on three of these due to characters that aren't convertible to decimals. We would not, however, expe
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posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss error converting data type varchar to numeric. in sql server 2008 Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes convert varchar to numeric in sql server a minute: Sign up SQL Error - varchar to numeric up vote 3 down vote favorite 1 I imported a flat file into an SQL database and it created all of the fields as varchar(50). I was able to change https://www.mssqltips.com/sqlservertip/4008/handling-error-converting-data-type-varchar-to-numeric-in-sql-server/ the data type of most fields, but hit an error in the weight field. All of the data in the weight field is less than 6 characters in total length and is either a whole integer or a decimal. I have tried both: UPDATE MAWB SET Weight = CAST(Weight AS decimal(12,2)) and: ALTER TABLE MAWB ALTER COLUMN [Weight] decimal(10,2) I always get the error: Error converting data type varchar to numeric. I've checked that all of the fields are considered numeric using: http://stackoverflow.com/questions/18156347/sql-error-varchar-to-numeric SELECT COUNT(*) FROM MAWB WHERE ISNUMERIC(Weight) = 0 I've also tried LTRIM and RTRIM just to be safe, but still get the error when I try to change the field. Does anyone know what else might be causing this error? sql sql-server-2012 varchar alter-table share|improve this question asked Aug 9 '13 at 22:05 Michael 1815 add a comment| 2 Answers 2 active oldest votes up vote 1 down vote accepted You can find the offending rows with this query: SELECT * FROM MAWB WHERE TRY_CONVERT(decimal(12,2),Weight) IS NULL AND Weight IS NOT NULL share|improve this answer answered Aug 10 '13 at 2:26 Steve Kass 5,546816 Nice catch, I missed the 2012 tag. –Aaron Bertrand Aug 10 '13 at 11:41 This helped. Found that all of the offending fields were over 1,000 and therefore had commas. Did a replace to remove those and then it converted over without issue. Thanks –Michael Aug 12 '13 at 15:12 add a comment| up vote 3 down vote So, ISNUMERIC() is far from perfect. It can return true for values like e, $, '€' and tab, and many others you wouldn't expect. But of course you can't convert those to every numeric type (ISNUMERIC() merely identifies that it can be converted to at least one of the numeric types). LTRIM() and RTRIM() won't help because they won't clear tab and other similar characters. To identify rows which are really not numeric: SELECT weight F
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up Recent PostsRecent Posts Popular TopicsPopular Topics Home Search Members Calendar Who's On Home » SQL Server 2005 » T-SQL (SS2K5) » Error Converting Data type varchar to numeric... Error Converting Data type varchar to numeric Rate Topic Display Mode Topic Options Author Message codewatcher11codewatcher11 Posted Saturday, January 17, 2009 9:32 AM Forum Newbie Group: General Forum Members Last Login: Sunday, August 9, 2009 11:02 PM Points: 7, Visits: 36 hi guys, im a newbie in this forum and im glad being a part of this programmer's den.anyways, im new in to sql,i know a few,but there are some things i dont know,and i know a great help is waiting me.i just wanna know guys how can i improve my sql statement,SELECT Orders.CustomerCode, Orders.Description, Orders.IsDelivered, Orders.OrderDate, Orders.OrderNo, Orders.RequisitionNo, Orders.Username, OrderedItems.DeliveredQty, CASE WHEN DeliveredQty = ItemQty THEN 'Delivered' WHEN DeliveredQty < ItemQty THEN (DeliveredQty) + ' items delivered.' ELSE (DeliveredQty) + ' items delivered' + (DeliveredQty - ItemQty) + ' consignment' END AS RemarksFROM Orders INNER JOIN OrderedItems ON Orders.OrderNo = OrderedItems.OrderNoWHERE (Orders.Username = @Username)i need to tell the query builder that the Fields ending with 'Qty' are numeric, thanks in advance :D Post #638710 GilaMonsterGilaMonster Posted Saturday, January 17, 2009 10:41 AM SSC-Forever Group: General Forum Members Last Login: Today @ 1:58 AM Points: 45,339, Visits: 43,578 Actually, SQL knows they're numeric. The error comes from trying to concatenate a numeric value into a string. It's trying to convert 'delivered' into numeric, which isn't going to work.SELECT Orders.CustomerCode, Orders.Description, Orders.IsDelivered, Orders.OrderDate, Orders.OrderNo, Orders.RequisitionNo, Orders.Username, OrderedItems.DeliveredQty, CASE WHEN DeliveredQty = ItemQty THEN 'Delivered' WHEN DeliveredQty < ItemQty THEN CAST(DeliveredQty AS VARCHAR(10)) + ' items delivered.' ELSE CAST(DeliveredQty AS VARCHAR(10)) + ' items delivered' + CAST(DeliveredQty - ItemQty AS VARCHAR(10)) + ' consignment' END AS RemarksFROM Orders INNER JOIN OrderedItems ON Orders.OrderNo = OrderedItems.OrderNoWHERE (Orders.Username = @Username) Gail ShawMicrosoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)SQL In The Wild: Discussions on DB performance with occasional diversions into recoverabilityWe walk in the dark places no others will enterWe stand on the bridge and no one may pass Post #638724 codewatcher11codewatcher11 Posted Sunday, January 18, 2009 2:10 AM Forum Newbie Group: General Forum Members Last Login: Sunday, August 9,