Data Conversion From String To Decimal When Saving Data To SQL Server 2005 Using An ADO Recordset

Feb 12, 2008

Hello,

I am wondering what conversion rules apply, when a string, which contains a number, is saved to a SQL Server 2005 into a column of type decimal.

This is the code Im using (C++):

CString cValue = "0.75"
_variant_t vtFieldValue;
vtFieldValue = _variant_t(cValue)
pRecordSet->Fields->Item["MyColumn"]->Value = vtFieldValue;

"pRecordSet" is an ADO recordset. The database column "MyColumn" is of type "decimal(19,10)".

The most important question for me is, if the regional settings of the database server or the regional settings of the client PC are considered during the conversion from the string to the decimal value. For example in standard French regional settings the "." would not be recognized as decimal separator.

I am also wondering if the language of the database instance, in which this data is saved, is considered during this conversion or any other settings of this database instance.

So my general question is: Does anybody know exactly what rules apply during the above mentioned conversion?

Thank you for your help.

Regards,
Volker

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Data Conversion From String To Decimal Problems

Mar 28, 2008

I'm very new to SSIS so please be patient and very detailed. Thank you in advance!

I have a SQL Table (tblImporData) with 2 columns: "Data" (varchar(40)) and "AccountNumber" (varchar(7)). I need to take the information in the "Data" column and parse it out into 3 different fields into a new table. I created the new table (tblExportData) with the following fields and data types: AcctNumber (varchar(7)), SiteName(nvarchar(10)), Balance (numeric(8,2)), and Active (nvarchar(1)).

Example of Data Field that I'm breaking up: 01Binford 001999Y

I've created a SSIS Package and in the dataflow I have an OLE DB Source going into a Derived Column. The derived column has the following information to split the data.


Derived Name Derived Column Expression Data Type Ln
AcctNumber Replace 'AcctNumber' AcctNumber String[DT_STR] 7
SiteName <add as new column> SUBSTRING(Data,3,10) Unicode string 10
Balance <add as new column> SUBSTRING(Data,13,6) Unicode String 6
Active <add as new column> SUBSTRING(Data,19,1) Unicode String 1


So it should split my example into the following:
AcctNumber SiteName Balance Active
12345 Binford 001999 Y

Everything works fine if the table I'm dumping the information to in SQL has varchar data types for all columns. But I need to convert my balance field from 001999 to 19.99. I tried putting a data conversion transform in that has the input column = Balance, Output Alias = Balance, Data Type = numeric [DT_NUMERIC], Precision = 8, and Scale = 2. I then changed the "Balance" data type to numeric(8,2) for the SQL table I'm dumping to, and added an OLE DB Destination to that table and mapped the columns.


When I try to run the package I'm getting an error at the Data Conversion that says the following:

[Data Conversion [698]] Error: Data conversion failed while converting column "Balance" (162) to column "Balance" (724). The conversion returned status value 2 and status text "The value could not be converted because of a potential loss of data.".
[Data Conversion [698]] Error: SSIS Error Code DTS_E_INDUCEDTRANSFORMFAILUREONERROR. The "output column "Balance" (724)" failed because error code 0xC020907F occurred, and the error row disposition on "output column "Balance" (724)" specifies failure on error. An error occurred on the specified object of the specified component. There may be error messages posted before this with more information about the failure.
[DTS.Pipeline] Error: SSIS Error Code DTS_E_PROCESSINPUTFAILED. The ProcessInput method on component "Data Conversion" (698) failed with error code 0xC0209029. The identified component returned an error from the ProcessInput method. The error is specific to the component, but the error is fatal and will cause the Data Flow task to stop running. There may be error messages posted before this with more information about the failure.
[DTS.Pipeline] Error: SSIS Error Code DTS_E_THREADFAILED. Thread "WorkThread0" has exited with error code 0xC0209029. There may be error messages posted before this with more information on why the thread has exited.

So, what am I doing wrong? Is there a different way I should be doing this? As always, your help is appreciated more than you'll ever know!

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Jan 31, 2008

The following T-SQL code is run in a vb.net (2003) module.

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I now need to save this data to a table in SQL 2005 running on a 2003 server.

The table for saving the data has already been created and saving the data is actually an 'update ... set ... where' statement.

The statement is
For i as short = 1 to itemCount

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sql_command.executeNonQuery
Next

The TagValue field datatype is decimal(18,6)
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The TagName datatype is varchar(50)
The tagName(i) datatype is string

When I run the loop (255 iterations) with the above query it takes 1500 mS.

If I force a conversion by changing the query to
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I tried one more variation
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If I use the following code
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sql_command = "Update [IO Log].[dbo].[IO Log] Set TagValue = " & tempValue & " where TagName =' " & tagName(i)
it excutes in under 100 mS for 255 iterations.

There seems to be a problem during implicit / explicit conversion of type object/variant to decimal.
I need to save the data received from the OPC (255 tags) in under 150 mS.

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Code Block
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End If
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ADODB.Recordset (0x800A0E78)
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And this is work fine in SQL 2000 before


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Oct 12, 2006

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Mar 25, 2007

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Conversion failed when converting character string to smalldatetime data type.
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<%@ Page Language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
 
 
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DateTime StartDate = DateTime.Today;
 
string @StartDate1 = StartDate.ToString(datePatt);
 
string @EndDate = StartDate.AddDays(1).ToString(datePatt);
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{
 
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break;
 
}
 
}
 
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<head id="Head1" runat="server">
<title>Untitled Page</title>
<style type="text/css">
body {
font: 1em Verdana;
}
</style>
</head>
<body>
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<div>
&nbsp;&nbsp;
 
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<asp:GridView ID="GridView1" runat="server" Style="z-index: 102; left: 228px; position: absolute;
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</asp:GridView>
&nbsp; &nbsp;<br/> <br/>
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Oct 3, 2007

I am running the following query:
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Hi,

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LST_WEEK int
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Date format (Month,day YEAR) eg.- October, 21 2007
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, and a VB code as below:

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:
:
:
I am encountering error: System.Data.SqlClient.SqlException: Conversion failed when converting character string to smalldatetime data type, which points to the codes in bold. Just wondering anyone out there has got a solution to my problem. Thank you.

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[...]
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USE [SCIR_DataMart_FromProd_06_20_2014]
GO
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Hi

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not the backup of db, i don't have the access.

No DTS to extract data into text file.

some thing like save the table with data?

I have more than 300 tables.



Thanks

sandipan

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Problem With Saving Data In SQL Server

Nov 6, 2007

Hi,
         I have a problem. The thing is that when I enter the values in a text boxes like evendate.text = "02/11/07" and desc.text="hello how r u" then I click on Save Button and its save in the SQL DATABASE but after this if I click on Refresh Button every time from the internet Explorer its automatically again save the data in the database although I have empty the textboxes.
 The code is below:
<script runat="server">  sub SaveEvent(sender as object, e as EventArgs)         dim con as new SQLConnection("server=london-home; Database=tony; uid=rashid2; pwd=test; ")
      dim cmd as new SQLCommand("insert into events values('" & desc.text & "','" & DateTime.Parse(eventdate.text) & "')",con)          con.open()    cmd.executenonquery()   con.close() clearform() display()     end sub    sub display()      dim con as new SQLConnection("server=london-home; Database=tony; uid=rashid2; pwd=test; ")    dim cmd as new SQLCommand("select * from events",con)       con.open()     dim SDR as SQLDataReader  SDR = cmd.ExecuteReader()     if SDR.HasRows = true then     ViewEvents.DataSource = SDR     ViewEvents.DataBind()    end if    con.close()     end sub    sub clearform()    eventdate.text="" desc.text=""      end sub    sub Reset(sender as object, e as EventArgs)    clearform()     end sub</script>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>Untitled Document</title>
<style type="text/css">
#display_prod{float:left;}
#prod{margin-top:0;}
</style>
</head><body>
<table border="1"  align="center" cellpadding="5" cellspacing="0"><tr><td valign="top">
<form  id="prod" runat="server" enctype="multipart/form-data"><table id="display_prod" width="554" border="1" cellspacing="0" cellpadding="0" align="left" height="400">  <tr valign="top" height="20">    <td>&nbsp;</td>    <td>       <table border="1" align="center" cellpadding="10" cellspacing="0">        <tr>        <td>PRODUCTS DESCRIPTION <asp:Label runat="server" ID="lbl"></asp:Label></td>        </tr>       </table>      </td>      </tr>               <tr valign="top">       <td>         <table align="left" id="menu" width="150" border="1" cellpadding="0" cellspacing="0">        <tr align="center">                  <td><a href="home.aspx">Main</a></td>        </tr>        <tr align="center">           <td><a href="Events.aspx">Change Password</a></td>        </tr>        <tr align="center">          <td><a href="events.aspx">Events</a></td>        </tr>          </table>      </td>            <td align="left">               <table width="390" border="1" cellpadding="0" cellspacing="0">         <tr>           <td width="100" >Enter Date :</td>           <td width="243" ><asp:TextBox runat="server" ID="eventdate" BackColor="#FFFFFF" Width="100"></asp:TextBox> mm/dd/yy</td>                </tr>         <tr>           <td>Description :</td>           <td><asp:TextBox runat="server" ID="desc" TextMode="MultiLine" Columns="20" Rows="3" BackColor="#FFFFFF" MaxLength="200"></asp:TextBox> max 200</td>         </tr>         <tr>           <td>&nbsp;</td>           <td>               <asp:Button runat="server" ID="btnsubmit" Text="Save" OnClick="SaveEvent"></asp:Button>               <asp:Button runat="server" ID="btnreset" Text="Reset"></asp:Button>           </td>         </tr>       </table>          <table width="390" border="1" align="left" cellpadding="0" cellspacing="0">         <tr>           <td>              <asp:DataGrid runat="server" ID="ViewEvents" AutoGenerateColumns="false">                <columns>                  <asp:TemplateColumn>                    <itemtemplate>                       <table id="tt" border="1" cellpadding="5" cellspacing="0">                        <tr>                          <td><asp:Label runat="server" ID="eventname" Text='<%#container.DataItem("event_name")%>' ></asp:Label></td>                                                  <td><asp:Label runat="server" ID="pdesc" Text='<%# trim(DataBinder.Eval(Container.DataItem,"event_date","{0:MM/dd/yyyy}")) %>' ></asp:Label></td>                        </tr>                    </table>                  </itemtemplate>              </asp:TemplateColumn>           </columns>     </asp:DataGrid>   </td>  </tr></table>        </td>  </tr> </table>
 
</form>
 
</td></tr></table></body></html>

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Aug 29, 2007

Hi everybody there

i have a small problem with this code, it cann't save changes on Datatable to the database SQL Server Mobile ..

the execution work succesfully but without changes in the database !

here is the code, please try to help :





Code Snippet

#Region " << Declarations >> "

Dim objCon As New SqlCeConnection("Data source=Storage CardFull_Database.sdf")
Dim objDA As SqlCeDataAdapter
Dim objCmdBldr As SqlCeCommandBuilder
Dim objTB As New DataTable("MyTB")
Dim objBS As New BindingSource

#End Region

Private Sub frmDatabase_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

objDA = New SqlCeDataAdapter("Select * From MyTB", objCon)
objDA.MissingSchemaAction = MissingSchemaAction.AddWithKey

objTB.Clear()

objDA.Fill(objTB)
objBS.DataSource = objTB

End Sub

' Add New Record for example
Private Sub mnuAddNew_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles mnuAddNew.Click

If Not CType(objBS.Current, DataRowView).IsNew Then
objBS.AddNew()

Dim dRowView As DataRowView = objBS.Current
dRowView.BeginEdit()

dRowView("id") = 10
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End If

' Calling Save Methode
mnuSave_Click(sender, e)

End Sub

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objBS.EndEdit()
objCmdBldr = New SqlCeCommandBuilder(objDA)
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Hi There,

I'm using C# to get a value for a DOUBLE precision variable, called "Length", from a textBox using the following line:

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I'm also using the following lines to prepare my stored procedure call:

arParms[9] = new SqlParameter("@Length", SqlDbType.Decimal, 5);
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My stored procedure has the following parameter definition:

@Length decimal(9,3)

My problem is that if someone types a value bigger than 999999 in the textbox he will get for sure the following error:

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I don't know how to either make sql or C# to truncate the value or catch the exception to automatically assign 0 to the parameter.

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Hi All,



I need a solution for the following:



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Any hint for me!!!



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ulrike

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I have created a simple package that uses a sql command to pull data from an oracle database and inserts the data into a sql 2005 table. Some of the data fields that i am pulling from contain two digits after the decimal point, however this data is lost when it gets into sql. I have even tried putting the data into a flat file, and still the data is lost.

In the package I have a ole db source connection which is the oracle database and when i do the preview i see all the data I need. I am very confused and tried a number of things to get the data into sql, but none work. Any ideas would be very helpful.

thanks

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Hi Experts,

I am extracting data from SQL Server 2005 to flat file destination. I am using SQL Command to specify the data selection query. One of my query uses Replicate function to derive a column value. When I execute this package it fails with the error "Data conversion failed. The data conversion for column "value" returned status value 4 and status text "Text was truncated or one or more characters had no match in the target code page".

The reason for the problem is that, it is taking the InputColumnWidth of the flat file destination as 8000 and I specified the OutputColumnWidth as 4.

If I change the OutputColumnWidth to 8000, it is working without any error but resulting in the column width of 8000.

I tried using DerivedColumn Transformation's Type cast and DataConversion Transformation but still I am getting the same error in the respective Transformation components.

Can anyone suggest how to solve this issue.

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