How To Convert From CHAR To Numeric In The Table

Sep 29, 2005

I have imported some data to sql2k from my old system. Somehow, it imported
invoice amount to char type.

I just created another column called invamt2 type NUMERIC so I can copy or
convert content of invamt which is type CHAR. There are about 50,000
records.

How can I convert/cast from char type to numeric type ?

Thanks

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Datatype Convert Char To Numeric

Dec 31, 2003

Hi,

I read the topic from JROdden and this case is similiar but...

I got several varchar fields with
values like
1.2
1.3
... these I can covert with
select CONVERT(dec(5,2), fieldname) as fieldname

In fact I also solved undefined- and NULL-values with.
CONVERT(decimal(12, 2), CASE WHEN GESCHKOSTMAX IS NULL OR
GESCHKOSTMAX < '0' THEN '0' ELSE GESCHKOSTMAX END) as GESCHKOSTMAX,

But now there are values like
1,4 and these ones neither CONVERT nor CAST will handle.

I tried the
SELECT DISTINCT KMPAUSCHALE
FROM extr_INTFIRMA
WHERE (isnumeric(KMPAUSCHALE) = 1)

and get
0,40
0.25
0.30 and so on...

The error is:
[Microsoft][ODBC SQL Driver][SQL Server]Error converting datatype varchar to decimal. (or float or numeric (whatever I tried))

I think the easiest way would be to insist on higher data quality but
I also would like to solve this interesting challenge.


Thanks for any hints

By the way, I followed rudys link to
http://rudy.ca/afdb.html
and now I know how I could protect myself !!!!

There must be a voice in my head saying:
Try the db-forum, try it and stay happy... ;-)

best regards and have fun with new year eve.

Michael

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The calculation can have results ranging in size from 0.1234567 to 99999999.

In the first case, I would need to store the value of 0.12345 in the column. In the later case, an error should be thrown.

So I need to store all of the significant digits from the left of the decimal (if there are < 7) and as many of the digits to the right as will fit into a CHAR(7), with the remaining precision being truncated.

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Feb 5, 2008



Hi ,

I am trying to convert a char field of lenght 5 into numeric (5,2) 999.99 format ,
i am getting an arithmentic overflow error.

The Character Data is 5 in length

It works fine if the Data is 00000
it fails if there is any number in the data

Like 10000
or 05000

How do i represent these into Numeric (5,2)

please let me know what taransformation to use and how.

Thanks,

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Jul 12, 2007

I'm designing a database that will not be that large (I would be surprised if it ever surpassed 50,000 rows across all tables), but will be accessed quite often, so I am doing my best to optimize its structure, such as doing 3NF, selecting appropriate data types, etc.

I have a few columns that will contain numeric data (such as an invoice number (from an external source) or location ID). However, one of my classes in college was about database design, and we were taught that if you won't be doing mathmatic computation on a field (such as the invoice or location fields I mentioned earlier), then you should use a string literal type (char, varchar, etc.)

Unfortunatly, the professor did not explain much as to why this should be done. From the standpoint of semantic analysis, these types of fields are probably more labels than they are numbers. However, I don't find that very convincing (or even helpful).

In short, my question is that given a column holding numeric data that isn't worked on in a mathematical sense, is it really better to mark it as a string literal than a number? Any articles or studies I can read relating to this?

I would think that comparisons would be faster with int, as well as data storage (though, as mentioned, that's not as big of a concern). Sadly, Google doesn't have many helpful resources. (Lots of stuff on char vs varchar, though.)

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Thanks,


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Sep 18, 2007

Hi guys/ladies I'm still having some trouble formatting a select statement correctly.
I am using a sqldatasource control on an aspx page. It is connecting via odbc string to an Informix database.
Here is my select statement cut down to the most basic elements.
SELECT     commentFROM         informix.ipr_stucomWHERE     (comment > 70)
The column "comment" contains student grades ranging from 0-100 and the letters I, EE, P, F, etc. Therefore the column is of a char type. This is a problem because I cannot run the above statement without hitting an alpha record and getting the following error
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How can I write this statement where it will work in the datasource control and have it only look at numeric values and skip the alpha values?
I have tried case with cast and isnumeric... I don't think that I have the formating correct.
I have also used:
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This works but is very clunky and could possibly break if other letters are input in the future. There has to be a better way.I am sorry for my ignorance and thanks again for your help.

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thx

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Feb 12, 2008

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Code:

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I've tried every combination of cast and convert I can think of, as well as numeric data types other than int. There aren't that many distinct values, so I'm just going to do this manually, but I still want to know why it won't work, or what I'm doing wrong. Any thoughts?

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Sep 29, 2007

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--------------------------------------------------
´å

(1 row(s) affected)


Here is the code that I am using....

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set @name =0x12b4e5
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Jul 3, 2001

Have a requirement to:

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if i use the query

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SELECT planeamento.iditem, idmodelo, item_planeamento.idproduto, item_planeamento.idpele, cor, ordemfabrico, qtd, CONVERT(char(20), dt, 105) FROM produto INNER JOIN item_planeamento ON produto.idproduto = item_planeamento.idproduto INNER JOIN planeamento ON item_planeamento.iditem = planeamento.iditem WHERE planeamento.idfabrica = 51 AND alterado = 'FALSE' AND estado = NULL GROUP BY planeamento.iditem, produto.idModelo, item_planeamento.idProduto, item_planeamento.idPele, item_planeamento.cor, item_planeamento.ordemFabrico, item_planeamento.qtd, planeamento.dt

before, id just had "id" where "CONVERT(char(20), dt, 105)" is, but the date was printed in a unwanted format..

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Dec 26, 2014

declare @new table(
id int not null identity(1,1),
dat char(10))
insert into @new
select'111214'
union
select'121214'
select cast(dat as datetime)from @new
-----------------------

2011-12-14 00:00:00.000
2012-12-14 00:00:00.000

but me need results it
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Aug 26, 2005

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Feb 22, 2008



We have the same database in three different environment. The statement below works just fine in two database environment, but I am getting the error in the third one. All the databases are Microsoft SQL Server 2005. I could not pine point the source of the issue. Please any input that you might be able to provide. Thanks



The issue in simplest from



DECLARE @UDF_Value nvarchar(255)

set @UDF_Value = 111



SELECT CONVERT(money, @UDF_Value)



Msg 235, Level 16, State 0, Line 1

Cannot convert a char value to money. The char value has incorrect syntax.









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Code Block
EXEC('UPDATE #tblTemp
SET #tblTemp.['+@CalcColumns+'] = (CAST(ISNULL((SELECT #tblTemp.['+@Column1+']
FROM #tblTemp
WHERE #tblTemp.PK = '''+@PubKey+'''), 0.00)as money) - CAST(ISNULL((SELECT #tblTemp.['+@Column2+']
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The problem is that it will not let me convert the two values to money. The error is:


Msg 235, Level 16, State 0, Line 1

Cannot convert a char value to money. The char value has incorrect syntax.

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---------------------------
Package Error
---------------------------
Error Source : Microsoft OLE DB Provider for ODBC Drivers

Error Description : [StarQuest][StarSQL ODBC Driver][DB2]THE VALUE OF A CHARACTER STRING ARGUMENT WAS NOT ACCEPTABLE TO THE INTEGER FUNCTION

---------------------------
OK
---------------------------

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Hi,

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Feb 14 2008 10:16AM

Msg 296, Level 16, State 3, Procedure TSU_CalcTempoRespostaPercInterv, Line 43

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