Code Sample For SSIS Script Component
May 15, 2007
Greetings,
I have been developing VBA apps in Access and Excel for sometime and am fairly proficient in VBA. Now we are moving all of our data to SQL Server 2005. I am in need of learning how to write code for the Script Component of a data flow task. And so I have a couple of questions.
First, are there any books you recommend for learning ???? (I'm not even sure what I need to learn: .NET? ADO.NET?)
And as a follow-up, any good websites that provide good reference documentation?
And my second question is more specific to my current problem. If I had a bit of code to get me started, I'm sure I could scream all the way to the bottom of the hill.
Data source is coming from a sort task where the data is sorted by STATUS and then MOD_DATE and the AUDIT_ID.
I need to read each row and compare it to the next row. If STATUS is the same, discard the second row.
When STATUS is different, send the first row to the output (to be used by the next task in the data flow).
Using the "different" row from step 3, go to step 2.
I know how to write if statements, case statements, for/next statements. I'm just not understanding how to read the rows in and then send them back out. I've been searching for some sample code but everything I find tends to be solving much bigger issues.
Any help you can provide would be much appreciated.
Rob
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Jul 11, 2006
After much work and thanks to all of you who helped on this here is a code sample that can be adapted. From the dataflow task add an OLEDB source component, a row count component and finally a Script Destination Component.
On the Script Destination Component rename the Input node of the imports and outputs tree view to "ParsedInput"
The readonly User: variables that start with gs can be read in the PreExecute method
The readwrite User: variable giSuccessCount can only be used in the post execute task because it is populated by the Row Count Component which is the previous object in the Dataflow
The xml code is adapted from an idea in Donald Farmers book
enjoy
Dave
Now if someone can make a Script Source Component that can read a file with a header , data body and trailer that would b egreat!
' Microsoft SQL Server Integration Services user script component
' This is your new script component in Microsoft Visual Basic .NET
' ScriptMain is the entrypoint class for script components
Imports System
Imports System.Data
Imports System.Math
Imports System.IO
Imports Microsoft.SqlServer.Dts.Pipeline.Wrapper
Imports Microsoft.SqlServer.Dts.Runtime.Wrapper
Imports System.Xml
Public Class ScriptMain
Inherits UserComponent
Dim sw As StreamWriter
'In addition to using the Imports System.Xml statement a reference must be added to the
'System.Xml assembly (Select Project-Add Reference from IDE)
Dim xWriter As XmlTextWriter
Dim OutputFileType As String '.csv or .xml
Public Overrides Sub PreExecute()
'Read Only variables
Dim gsPickUp As String = Me.Variables.gsPickUp 'D:ftprootOutAvid'
Dim gsPickUpFilename As String = Me.Variables.gsPickUpFilename '1_AVID_'
Dim gsPickUpFileExtn As String = Me.Variables.gsPickUpFileExtn '.csv'
Dim gsMemoText As String = Me.Variables.gsMemoText 'Memo Text : credit adjustment'
Dim gsStatementText As String = Me.Variables.gsStatementText 'Statment Text : credit adjustment'
Dim gsRunMode As String = Me.Variables.gsRunMode 'UPDATE'
Dim fileName As String = gsPickUp & "" & gsPickUpFilename
fileName = fileName & (Format(Now(), "yyMMdd").ToString)
'MsgBox(fileName)
OutputFileType = gsPickUpFileExtn
If OutputFileType = ".csv" Then
fileName = fileName & gsPickUpFileExtn
sw = New StreamWriter(fileName) 'connection to dest file
'Header records
sw.Write(gsRunMode)
sw.Write(Environment.NewLine) ' end of line
sw.Write(gsMemoText)
sw.Write(Environment.NewLine)
sw.Write(gsStatementText)
sw.Write(Environment.NewLine)
sw.Write(Environment.NewLine) 'Spacer
End If
If OutputFileType = ".xml" Then
fileName = fileName & gsPickUpFileExtn
'xWriter = New XmlTextWriter(Me.Connections.XMLConnection.ConnectionString, Nothing)
'xWriter.WriteStartDocument()
'xWriter.WriteComment("Customer file parsed using script")
'xWriter.WriteStartElement("x", "customer", "http://some.org/name")
'xWriter.WriteAttributeString("FileName", Me.Connections.XMLConnection.ConnectionString)
xWriter = New XmlTextWriter(fileName, Nothing)
xWriter.WriteStartDocument()
xWriter.WriteComment("Customer file parsed using script")
xWriter.WriteStartElement("x", "customer", "http://some.org/name")
xWriter.WriteAttributeString("FileName", fileName)
End If
End Sub
Public Overrides Sub ParsedInput_ProcessInputRow(ByVal Row As ParsedInputBuffer)
If OutputFileType = ".csv" Then
Dim delim As String = ","
sw.Write(Row.ProjectID.ToString + delim)
sw.Write(Row.TransactionRefNum.ToString + delim)
sw.Write(Row.CustomerNum.ToString + delim)
sw.Write(Row.AccountNum.ToString + delim)
sw.Write(Environment.NewLine) ' end of line
sw.Flush() 'send the stream to file
End If
If OutputFileType = ".xml" Then
xWriter.WriteStartElement("CUSTOMER")
xWriter.WriteStartElement("ProjectID")
xWriter.WriteString(Row.ProjectID.ToString)
xWriter.WriteEndElement()
xWriter.WriteStartElement("TransactionRefNum")
xWriter.WriteString(Row.TransactionRefNum.ToString)
xWriter.WriteEndElement()
xWriter.WriteStartElement("CustomerNum")
xWriter.WriteString(Row.CustomerNum.ToString)
xWriter.WriteEndElement()
xWriter.WriteStartElement("AccountNum")
xWriter.WriteString(Row.AccountNum.ToString)
xWriter.WriteEndElement()
End If
End Sub
Public Overrides Sub PostExecute()
If OutputFileType = ".csv" Then
'Create the trailer
sw.Write(Environment.NewLine) ' blank line
sw.Write("RECORD_COUNT: " & Me.Variables.giSuccessCount.ToString) 'ReadWrite Varible
sw.Write(Environment.NewLine)
sw.Flush() 'send the stream to file
'Close file
sw.Close()
End If
If OutputFileType = ".xml" Then
xWriter.WriteStartElement("RecordCount")
xWriter.WriteString(Me.Variables.giSuccessCount.ToString)
xWriter.WriteEndElement()
xWriter.WriteEndElement()
xWriter.WriteEndDocument()
xWriter.Close()
End If
End Sub
End Class
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Oct 2, 2006
I am trying to write a ssis surrogate key data transform, my problem is I can't find an example how to add a column to the incoming columns and add some data to it. If anyone has a sample, can you please post it. I found a script option that works but I would like an actual transform.
Thanks
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Mar 28, 2006
Hi
Books online mention the existence of sample code for several custom tasks, including the one mentioned in the title. But, when I try to find this code in the location mentioned it is nowhere to be found.
I have run a search on the rest of my drive and come up empty.
Can anyone tell me where to find this?
Thanks
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Apr 21, 2015
After adding Service Reference  to WebService, the Script Component has Binary Code not found, red circle not showing these are the steps I followed:
1) Add Script Component as Source
2) Add 3 x Output Columns Col1,2 and 3
3) Add HTTP Connection URL>..Binary Code not found, red circle showing
4) Add test code to Sub CreateNewOutputRows    Dim i As Integer = 6      Binary Code not found, red circle not showing
5)Â Add Service Reference URL...Binary Code not found, red circle showing again
Should just adding Service Reference cause Binary Code not found, red circle to appear. I have to set precompilescripttobinary option , however cannot see this option in 2012
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Nov 27, 2007
No idea where this bug crept in from. Have been using SSIS for 1.5 years now without hitting this problem.
I had a script component opening an XML document and parsing it using XPATH. I added some code that uses StreamReader / Streamwriter (closing one stream before starting the other). The code works without issue in my C# app.
And it ran without issue 2-3 times in SSIS. Then suddenly after running my package again, the script component says it completes successfully, yet nothing happens. I set a breakpoint on the first line of code - it never hits it. I add a msgbox as the first line of code - and it never displays.
I then close my package / exit out of ssis ... and then re-open it. When i open my script component, all of my code is GONE. All references that I added are gone.
I tried adding the streamreader/writer process to a dll I created from my c# app ... and added the DLL to the package -- same result.
I can reproduce this on 2 different computers.
Anyone experience this problem ? Any idea how to stop it ? Or debug it ?
Here is a slimmed down code sample of what causes the error :
Public Class ScriptMain
Public Sub Main()
Try
Dim xmlDoc As New XmlDocument
xmlDoc.Load("c:ulkasync_86281519_20070628045850225_4.xml")
MsgBox("xmlLoaded") --this doesn't display once the package starts "acting up"
Catch ex As Exception
MsgBox(ex.Message)
UpdateXML("c:ulkasync_86281519_20070628045850225_4.xml", ex.Message)
End Try
Dts.TaskResult = Dts.Results.Success
End Sub
Private Sub UpdateXML(ByVal fileName As String, ByVal message As String)
Try
Dim invalidChar As String = message.Trim().Substring(message.Trim().IndexOf("0x"), 4)
Dim rd As StreamReader = New StreamReader(fileName)
Dim xml As String = rd.ReadToEnd()
Xml = Xml.Replace(invalidChar, String.Empty)
xml = xml.Replace("", String.Empty)
xml = xml.Replace("<![CDATA[<![CDATA[", "<![CDATA[")
xml = xml.Replace("]]>]]>", "]]>")
MsgBox("replaced")
rd.Close()
Dim wr As StreamWriter = New StreamWriter(fileName)
wr.Write(xml)
wr.Close()
Dim xdoc As XmlDocument = New XmlDocument()
xdoc.Load(fileName)
Catch ex As Exception
UpdateXML(fileName, ex.Message)
End Try
End Sub
End Class
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Mar 28, 2006
Hi,
I neew a small sample code in VB.NET to create a custom data flow component for SSIS.
All the examples I was able to find it are in C#.
Answer very apreciated.
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Dec 9, 2003
hi,
Does anyone have any sample code for using ntext data type, when inserting or reading big block of texts? How can you read a big huge block of text back into c#?
thx
-Philip
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Nov 2, 2006
This is a sample code from an MSDN help site. I copied it and pasted into an open new query. I tried to execute it and got two errors:
USE AdventureWorks;
GO
DECLARE @tablename sysname
SET @tablename = N'Person.AddressType'
table_loop:
IF (@@FETCH_STATUS <> -2)
BEGIN
SELECT @tablename = RTRIM(UPPER(@tablename))
EXEC ('SELECT ''' + @tablename + ''' = COUNT(*) FROM '
+ @tablename )
PRINT ' '
END
FETCH NEXT FROM tnames_cursor INTO @tablename
IF (@@FETCH_STATUS <> -1) GOTO table_loop
GO
The errors are:
Msg 208, Level 16, State 1, Line 1
Invalid object name 'PERSON.ADDRESSTYPE'.
Msg 16916, Level 16, State 1, Line 9
A cursor with the name 'tnames_cursor' does not exist
The database is connected. Table Person.AddressType is a part of it.
What is wrong?
Thanks.
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Here is an example table:
KEY ASOFDATE
A 1/1/2007
A 3/1/2007
B 1/1/2007
B 2/5/2007
B 3/6/2007
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This would be even better:
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2 A 3/1/2007
3 B 1/1/2007
4 B 2/5/2007
5 B 3/6/2007
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1 A 1/1/2007 3/1/2007
2 A 3/1/2007 NULL
3 B 1/1/2007 2/5/2007
4 B 2/5/2007 3/6/2007
5 B 3/6/2007 NULL
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Mar 16, 2007
In a Data Flow, I have the necessity to use a SSIS variable of type €œObject€? inside Script Component and assign to it the content of 'n' variables of string type.
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AAAAAAAAAAAAAAAAAAAAAAAAAAAAA
BBBBBBBBBBBBBBBBBBBBBBBBBBBBB
CCCCCCCCCCCCCCCCCCCCCCCCCCCCC
DDDDDDDDDDDDDDDDDDDDDDDDDDDDD
€¦€¦€¦€¦€¦€¦€¦.
€¦€¦€¦€¦€¦€¦€¦.
On exiting from the data flow I will use the variable of type Object in a Script Task, by reading each element in a cyclic fashion.
Is there anyone who have experienced something like this? Could anyone provide any example of that?
Thanks in advance!
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Aug 13, 2007
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Nov 30, 2006
Hi,
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Jul 19, 2007
Dear all：
I have set the PrecompileScriptIntoBinaryCode property to true,but the Script Component show the message "can't find the binary code" after I finish the script language and save it . What's wrong with it ? I ever tried the same code, and it's OK with no problem. When did the problem happen ?
Please give me a help ....Thanks a lot!
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Mar 29, 2007
I have SQL Server 2005 Developer Edition. I have a script component in one dataflow which I have added code to today. I saved using the save Icon and exited. I noticed a warning on the item, so I went back into the script and my changes had gone. I though I could not of saved the code and retyped, saving every 5 minutes. I closed visual studio, and noticed the script component had the warning on again! I went back to the code and all my changes were gone. I did not see any errors or warnings in Visual Studio. What am I missing, retyping code becomes tedious!
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Feb 10, 2006
Especially interested in the CodePageConvert.
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Jul 5, 2006
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Jan 30, 2007
Hi,
I have created a Integration Services package that takes a table in a database, and transfers it to a flat file. This package has successfully run through visual studio 2005 as a .dtsx package, and given the output that I expected.
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Error in Microsoft.SqlServer.Dts.Runtime.TaskHost/DTS.Pipeline : The product level is insufficient for component "Flat File Destination" (31).
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May 26, 2008
Hi,
I get a "sample.txt.z" file from an ftp site. My work is to unzip the file and load it into SQL Server Database.
Please give me VB Script to write in the SSIS Script task. to unzip the file.
Please help
i have posted the question in many blogs and i could not get the right answer.
Thanks in Advance
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Jul 27, 2015
ConnectionManager manager = Microsoft.SqlServer.Dts.Runtime.DtsConvert.GetWrapper(base.Connections.Connection);
IDTSConnectionManagerCache100 cache = manager.InnerObject as IDTSConnectionManagerCache100;
if (cache != null)
{
 System.Windows.Forms.MessageBox.Show("Cache is found.");
}
and use
IDTSConnectionManagerCacheColumn100 id = connMgr.Columns["Id"]; get the column info.
but how do i get the cache connection content ?I want to look in the content in a script component code.Â
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Oct 26, 2007
Hello,
I have a package that has a data lfow task. this task imports data from a db2 database (using the IBM Ole DB provider fro db2) and adds it to sql server database table. This package was created on the server. then though version control (using TFS source control) I check out the package on my local machine. and when I open the package I get the foll 3 errors.
Error 1 Validation error. Import Account Num from BMGP_BDR: DTS.Pipeline: The component metadata for "component "DataReader Source" (1113)" could not be upgraded to the newer version of the component. The PerformUpgrade method failed.
Error 2 Error loading BMAG Download Xref Tables - bmag.dtsx: Microsoft.SqlServer.Dts.Pipeline.ComponentVersionMismatchException: The version of component "DataReader Source" (1113) is not compatible with this version of the DataFlow. [[The version or pipeline version or both for the specified component is higher than the current version. This package was probably created on a new version of DTS or the component than is installed on the current PC.]] at Microsoft.SqlServer.Dts.Pipeline.ManagedComponentHost.HostCheckAndPerformUpgrade(IDTSManagedComponentWrapper90 wrapper, Int32 lPipelineVersion)
Error 3 Error loading BMAG Download Xref Tables - bmag.dtsx: The component metadata for "component "DataReader Source" (1113)" could not be upgraded to the newer version of the component. The PerformUpgrade method failed.
Please advice.
Thank you.
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Jan 23, 2007
Hi,
I have a package which reads an Access file from a folder. My connection manager to this file is .NET providers for OledbMicrosoft Jet 4.0 OLE DB Provider.
Package works from my computer. But when I execute it on the server as a SQL Agent job, I get
The component metadata for "component "DataReader Source" (1) could not be upgraded to the newer version of the component. The PerformUpgrade method failed.
I copied the mdb file to a folder on the server which my packages have no problem reading data from.
My packages run under the same domain account as defined in proxies.
Appreciate a help.
Gulden
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Feb 29, 2008
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