Why do we want use 'Data Flow Task' to 'Data Flow Tast' in Control Flow?

I found an example in my company's SSIS package folders. In Control Flow, it has one data flow connected to the other. Both of them are importing data from flat file and then exported to database. I think these two are kind of at the same level and cannot
see any reasons to conncect them together.
Thanks & Happy Thxgiving,
Gavin

Hi Gavin,
Just as Arthur said, if there is no relationship between those two data flow tasks, we don’t have to connect them together. If they connect together, maybe there are some relationship between them.
According to your description, both of the data flow tasks are importing data from flat file and then exported to database. It seems that there is no direct relationship between them. Another possibility is that there is a precedence constraint between them.
The precedence constraint can be based on a combination of the first execution results and the evaluation of expressions. We can check the issue by double-check the connection string between them.
The following screenshot is for your reference:
If there are any other questions, please feel free to ask.
Thanks,
Katherine Xiong
Katherine Xiong
TechNet Community Support

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Hi,
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Hi friends,
Hope u r all fine..
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LOLO wrote:
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SSIS Data Flow task using SharePoint List Adapter Setting SiteUrl won't work with an expression

Hi,
I'm trying to populate the SiteUrl from a variable that has been set based on a query to a SQL table that has a URL field. Here are the steps I've taken and the result.
Created a table with a url in it to reference a SharePoint Task List.
Created a Execute SQL Task to grab the url putting the result set in a variable called SharePointUrl
Created a For Each container and within the collection I use the SharePointUrl as the ADO object source variable and select rows in the first table.
Still in the For Each container within the Variable mappings I have another Package Variable called PassSiteUrl2 and I set that to Index 0 or the value of the result set.
I created a script task to then display the PassSiteUrl2 variable and it works great I see my url
This is where it starts to suck eggs!!!!
I insert a Data Flow Task into my foreach loop.
I Insert a SharePoint List Adapter into my Data Flow
Within my SharePoint List Adapter I set my list to be "Tasks", My list view to be "All Tasks" and then I set the url to be another SharePoint site that has a task list just so there is some default value to start with.
Now within my Data Flow I create an expression and set the [SharePoint List Source].[SiteUrl] equal to my variable @[User::PassSiteUrl2].
I save everything and run my SSIS package and it overlays the default [SharePoint List Source].[SiteUrl] with blanks in the SharePoint List Adapter then throws the error that its missing a url
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Thanks
Donald R. Landry

Thanks Arthur,
The scope of the variable is at a package level and when I check to see if it can be moved Package level is the highest level. The evaluateasexpression property is set to True. Any other ideas?
I also tried to do the following. Take the variable that has the URL in it and just assign it to the description of the data flow task to see if it would show up there (the idea being the value of my @[User::PassSiteUrl] should just show in the
description field when the package is run. That also shows up blank.
So i'm thinking its my expression. All I do in the expression is set [SharePoint List Source].[SiteUrl] equal to @[User::PassSiteUrl] by dragging and dropping the variable into the expression box. Maybe the expression should be something
else or is their a way to say @[User::PassSiteUrl] = Dts.Variables("User::PassSiteUrl2").Value.ToString()
In my script task I use Dts.Variables("User::PassSiteUrl2").Value.ToString() to display
the value in the message box and that works fine.
Donald R. Landry

Why does DB2 Data Flow Task query does not accept a date coming from a string or datetime variable in SSIS?

I am trying to compare a DB2 date format to a date variable from SSIS. I have tried to set the variable as datetime and string. I have also casted the SQL date as date in the data flow task. I have tried a number of combinations of date formats, but no luck
yet. Does anyone have any insights on how to set a date (without the time) variable and be able to use it in the data flow task SQL? It has to be an easy way to accomplish that. I get the following error below:
An invalid datetime format was detected; that is, an invalid string representation or value was specified. SQLSTATE=22007".
Thanks!

Hi Marcel,
Based on my research, in DB2, we use the following function to convert a string value to a date value:
Date(To_Date(‘String’, ‘DD/MM/YYYY’))
So, you can set the variable type to String in the package, and try the following query:
ACCOUNT_DATE BETWEEN '11/30/2013' AND Date(To_Date(?, ‘DD/MM/YYYY’))
References:
http://stackoverflow.com/questions/4852139/converting-a-string-to-a-date-in-db2
http://www.dbforums.com/db2/1678158-how-convert-string-time.html
Regards,
Mike Yin
TechNet Community Support

SQL Query using a Variable in Data Flow Task

I have a Data Flow task that I created. THe source query is in this file "LPSreason.sql" and is stored in a shared drive such as
\\servername\scripts\LPSreason.sql
How can I use this .sql file as a SOURCE in my Data Flow task? I guess I can use SQL Command as Access Mode. But not sure how to do that?

Hi Desigal59,
You can use a Flat File Source adapter to get the query statement from the .sql file. When creating the Flat File Connection Manager, set the Row delimiter to a character that won’t be in the SQL statement such as “Vertical Bar {|}”. In this way, the Flat
File Source outputs only one row with one column. If necessary, you can set the data type of the column from DT_STR to DT_TEXT so that the Flat File Source can handle SQL statement which has more than 8000 characters.
After that, connect the Flat File Source to a Recordset Destination, so that we store the column to a SSIS object variable (supposing the variable name is varQuery).
In the Control Flow, we can use one of the following two methods to pass the value of the Object type variable varQuery to a String type variable QueryStr which can be used in an OLE DB Source directly.
Method 1: via Script Task
Add a Script Task under the Data Flow Task and connect them.
Add User::varQuery as ReadOnlyVariables, User::QueryStr as ReadWriteVariables
Edit the script as follows:
public void Main()
// TODO: Add your code here
System.Data.OleDb.OleDbDataAdapter da = new System.Data.OleDb.OleDbDataAdapter();
DataTable dt = new DataTable();
da.Fill(dt, Dts.Variables["User::varQuery"].Value);
Dts.Variables["QueryStr2"].Value = dt.Rows[0].ItemArray[0];
Dts.TaskResult = (int)ScriptResults.Success;
4. Add another Data Folw Task under the Script Task, and join them. In the Data Flow Task, add an OLE DB Source, set its Data access mode to “SQL command from variable”, and select the variable User::QueryStr.
Method 2: via Foreach Loop Container
Add a Foreach Loop Container under the Data Flow Task, and join them.
Set the enumerator of the Foreach Loop Container to Foreach ADO Enumerator, and select the ADO object source variable as User::varQuery.
In the Variable Mappings tab, map the collection value of the Script Task to User::QueryStr, and Index to 0.
Inside the Foreach Loop Container, add a Data Flow Task like step 4 in method 1.
Regards,
Mike Yin
TechNet Community Support

When I try to use 'Stacked Column Bar'. with data assigned in the graphs, and want to see it in the 'Preview' mode in Xeclsius, I unable to see the graphs apart from the Axes ans Series Value, the graphs becomes totaly invisible why So ?

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Hi Ranendra,
For basic understanding of Dashboards and Models you can use standard Templates or samples which ll come along with dashboard designer(Formly Xcelsius) installation.
For path File-->Templates(or Samples).
Under Templates you ll have different categories and for each you ll find the dashboard Templates.
Regards,
Venkat P

Error: 0xC020902A at Data Flow Task, XML Source [24515]: The "component "XML Source" (24515)" failed because truncation occurred, and the truncation row disposition on "output column "MsgLev1" (26196)" specifies failure on truncation. A truncation error o

When I was Importing data from XML to SqlServer using SSIS , I am getting this error. The import is working if i use small file and not working if I use large XMl file. Can any one of you guys help me out with the issue?
Error: 0xC020902A at Data Flow Task, XML Source [24515]: The "component "XML Source" (24515)" failed because truncation occurred, and the truncation row disposition on "output column "MsgLev1" (26196)" specifies failure on truncation. A truncation error occurred on the specified object of the specified component.
Error: 0xC02092AF at Data Flow Task, XML Source [24515]: The component "XML Source" (24515) was unable to process the XML data. Pipeline component has returned HRESULT error code 0xC020902A from a method call.
Error: 0xC0047038 at Data Flow Task: SSIS Error Code DTS_E_PRIMEOUTPUTFAILED. The PrimeOutput method on component "XML Source" (24515) returned error code 0xC02092AF. The component returned a failure code when the pipeline engine called PrimeOutput(). The meaning of the failure code is defined by the component, but the error is fatal and the pipeline stopped executing. There may be error messages posted before this with more information about the failure.
Error: 0xC0047021 at Data Flow Task: SSIS Error Code DTS_E_THREADFAILED. Thread "SourceThread0" has exited with error code 0xC0047038. There may be error messages posted before this with more information on why the thread has exited.
Error: 0xC0047039 at Data Flow Task: SSIS Error Code DTS_E_THREADCANCELLED. Thread "WorkThread0" received a shutdown signal and is terminating. The user requested a shutdown, or an error in another thread is causing the pipeline to shutdown. There may be error messages posted before this with more information on why the thread was cancelled.
Error: 0xC0047039 at Data Flow Task: SSIS Error Code DTS_E_THREADCANCELLED. Thread "WorkThread1" received a shutdown signal and is terminating. The user requested a shutdown, or an error in another thread is causing the pipeline to shutdown. There may be error messages posted before this with more information on why the thread was cancelled.
Error: 0xC0047039 at Data Flow Task: SSIS Error Code DTS_E_THREADCANCELLED. Thread "WorkThread3" received a shutdown signal and is terminating. The user requested a shutdown, or an error in another thread is causing the pipeline to shutdown. There may be error messages posted before this with more information on why the thread was cancelled.
Error: 0xC0047039 at Data Flow Task: SSIS Error Code DTS_E_THREADCANCELLED. Thread "WorkThread4" received a shutdown signal and is terminating. The user requested a shutdown, or an error in another thread is causing the pipeline to shutdown. There may be error messages posted before this with more information on why the thread was cancelled.
Error: 0xC0047039 at Data Flow Task: SSIS Error Code DTS_E_THREADCANCELLED. Thread "WorkThread2" received a shutdown signal and is terminating. The user requested a shutdown, or an error in another thread is causing the pipeline to shutdown. There may be error messages posted before this with more information on why the thread was cancelled.
Error: 0xC0047021 at Data Flow Task: SSIS Error Code DTS_E_THREADFAILED. Thread "WorkThread0" has exited with error code 0xC0047039. There may be error messages posted before this with more information on why the thread has exited.
Error: 0xC0047021 at Data Flow Task: SSIS Error Code DTS_E_THREADFAILED. Thread "WorkThread1" has exited with error code 0xC0047039. There may be error messages posted before this with more information on why the thread has exited.
Error: 0xC0047021 at Data Flow Task: SSIS Error Code DTS_E_THREADFAILED. Thread "WorkThread2" has exited with error code 0xC0047039. There may be error messages posted before this with more information on why the thread has exited.
Error: 0xC0047021 at Data Flow Task: SSIS Error Code DTS_E_THREADFAILED. Thread "WorkThread3" has exited with error code 0xC0047039. There may be error messages posted before this with more information on why the thread has exited.
Error: 0xC0047021 at Data Flow Task: SSIS Error Code DTS_E_THREADFAILED. Thread "WorkThread4" has exited with error code 0xC0047039. There may be error messages posted before this with more information on why the thread has exited.

The reason is in the first line of the error. It doesn't have anything to do with the size of your XML file - it has to do with the contents of the "MsgLev1" column. You (or the XSD) has indicated that the values in this column not exceed a certain size - but one of the values in the file that's failing is larger than that.
In order to fix the problem, you're going to need to increase the allocated space for that column. In order to do that, you're going to need to find out what the required size of that data is - either from someone who ought to know, or by direct examination of the file. If you want to know which entity has this overly large data element in it, you need to configure the error handling of the XML Source to "redirect truncation errors". Then you can hook up the XML Source's error output to another destination where you can see which rows are problematic.
Talk to me on

Data flow tasks faills while loading from database to excel

Hello,
I am getting error while loading from oledb source to excel and the error as shown below.
Error: 0xC0202009 at DFT - Company EX, OLE DB Destination [198]: SSIS Error Code DTS_E_OLEDBERROR. An OLE DB error has occurred. Error code: 0x80004005.
Error: 0xC0209029 at DFT - Company EX, OLE DB Destination [198]: SSIS Error Code DTS_E_INDUCEDTRANSFORMFAILUREONERROR. The "input "OLE DB Destination Input" (211)" failed because error code 0xC020907B occurred, and the error row
disposition on "input "OLE DB Destination Input" (211)" 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.
Error: 0xC0047022 at DFT - Company EX: SSIS Error Code DTS_E_PROCESSINPUTFAILED. The ProcessInput method on component "OLE DB Destination" (198) 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.
Error: 0xC02020C4 at DFT - Company EX, OLE DB Source 1 [1]: The attempt to add a row to the Data Flow task buffer failed with error code 0xC0047020.
Error: 0xC0047021 at DFT - Company EX: 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.
Error: 0xC0047038 at DFT - Company EX: SSIS Error Code DTS_E_PRIMEOUTPUTFAILED. The PrimeOutput method on component "OLE DB Source 1" (1) returned error code 0xC02020C4. The component returned a failure code when the pipeline engine
called PrimeOutput(). The meaning of the failure code is defined by the component, but the error is fatal and the pipeline stopped executing. There may be error messages posted before this with more information about the failure.
Error: 0xC0047021 at DFT - Company EX: SSIS Error Code DTS_E_THREADFAILED. Thread "SourceThread0" has exited with error code 0xC0047038. There may be error messages posted before this with more information on why the thread has exited.
Any help would be appreciated ASAP.
Thanks,
Vinay s

You can use this code to import from SQL Server to Excel . . .
Sub ADOExcelSQLServer()
' Carl SQL Server Connection
' FOR THIS CODE TO WORK
' In VBE you need to go Tools References and check Microsoft Active X Data Objects 2.x library
Dim Cn As ADODB.Connection
Dim Server_Name As String
Dim Database_Name As String
Dim User_ID As String
Dim Password As String
Dim SQLStr As String
Dim rs As ADODB.Recordset
Set rs = New ADODB.Recordset
Server_Name = "EXCEL-PC\EXCELDEVELOPER" ' Enter your server name here
Database_Name = "AdventureWorksLT2012" ' Enter your database name here
User_ID = "" ' enter your user ID here
Password = "" ' Enter your password here
SQLStr = "SELECT * FROM [SalesLT].[Customer]" ' Enter your SQL here
Set Cn = New ADODB.Connection
Cn.Open "Driver={SQL Server};Server=" & Server_Name & ";Database=" & Database_Name & _
";Uid=" & User_ID & ";Pwd=" & Password & ";"
rs.Open SQLStr, Cn, adOpenStatic
' Dump to spreadsheet
With Worksheets("sheet1").Range("a1:z500") ' Enter your sheet name and range here
.ClearContents
.CopyFromRecordset rs
End With
' Tidy up
rs.Close
Set rs = Nothing
Cn.Close
Set Cn = Nothing
End Sub
Also, check this out . . .
Sub ADOExcelSQLServer()
Dim Cn As ADODB.Connection
Dim Server_Name As String
Dim Database_Name As String
Dim User_ID As String
Dim Password As String
Dim SQLStr As String
Dim rs As ADODB.Recordset
Set rs = New ADODB.Recordset
Server_Name = "LAPTOP\SQL_EXPRESS" ' Enter your server name here
Database_Name = "Northwind" ' Enter your database name here
User_ID = "" ' enter your user ID here
Password = "" ' Enter your password here
SQLStr = "SELECT * FROM Orders" ' Enter your SQL here
Set Cn = New ADODB.Connection
Cn.Open "Driver={SQL Server};Server=" & Server_Name & ";Database=" & Database_Name & _
";Uid=" & User_ID & ";Pwd=" & Password & ";"
rs.Open SQLStr, Cn, adOpenStatic
With Worksheets("Sheet1").Range("A2:Z500")
.ClearContents
.CopyFromRecordset rs
End With
rs.Close
Set rs = Nothing
Cn.Close
Set Cn = Nothing
End Sub
Finally, if you want to incorporate a Where clause . . .
Sub ImportFromSQLServer()
Dim Cn As ADODB.Connection
Dim Server_Name As String
Dim Database_Name As String
Dim User_ID As String
Dim Password As String
Dim SQLStr As String
Dim RS As ADODB.Recordset
Set RS = New ADODB.Recordset
Server_Name = "Excel-PC\SQLEXPRESS"
Database_Name = "Northwind"
'User_ID = "******"
'Password = "****"
SQLStr = "select * from dbo.TBL where EMPID = '2'" 'and PostingDate = '2006-06-08'"
Set Cn = New ADODB.Connection
Cn.Open "Driver={SQL Server};Server=" & Server_Name & ";Database=" & Database_Name & ";"
'& ";Uid=" & User_ID & ";Pwd=" & Password & ";"
RS.Open SQLStr, Cn, adOpenStatic
With Worksheets("Sheet1").Range("A1")
.ClearContents
.CopyFromRecordset RS
End With
RS.Close
Set RS = Nothing
Cn.Close
Set Cn = Nothing
End Sub
Knowledge is the only thing that I can give you, and still retain, and we are both better off for it.

Why is the LookUp object in the Flow Task of my SSIS package going red (and not working) ? Sql Server 2008 R2

I have been working with the Sql Server 2008 R2 SSIS Tutorial at
https://msdn.microsoft.com/en-us/library/ms170419(v=sql.105).aspx
--specifically -- Lesson 1. I have been having some problems with this lesson where the source data from the samples download doesn’t exactly match the data described in the tutorial, and the tables in the tutorial are different from what
is contained in AdventureWorksDW (tutorial refers to DimTime – AdventureWorksDW contains DimDate and no DimTime).
So, after futzing in BI with this tutorial so that I can at least get it to run in Debug – it errors out on the 2nd LookUp object.
Rather than looking for a fix to the problem(s) that I am having between the tutorial and the stuff I downloaded in the samples --
I want “Adapt” the tutorial so I can use the stuff I downloaded and hopefully learn how to use SSIS with the elements (source data and tables) that are present on my workstation.
Here is a description of what is going on for me – which I really don’t understand what is going on in BI – based on the images below – like what columns (from what tables) are they associating to in the OleDB Destination?
Note: the sql in the LookUps here is the sql that I copied from the tutorial.
I probably need to modify these sql statements – so -- the help I am requesting is to make the required modifications/changes
so that I can adapt this tutorial with the stuff that’s on my workstation.
I downloaded the samples and the AdventureWorksDW mdf for Sql Server 2008 R2.
It turns out that in the tutorial it wants me to select a DimTime table, but the version of the AdventureWorksDW db does not contain a DimTime table.
Instead, it contains a DimDate table. So I tried adapting DimDate for the tutorial.
Additionally, the sample data file -- SampleCurrencyData.txt -- has slightly different data types than the types described in the tutorial, so I selected data types for the columns in the datasource text file that would work in BI would to
connect column from source data file to the table.
After finishing all the steps for Lesson 1 -- when I tried debugging the package – and it error'd out on the 2nd Lookup object whichwent red.
 I edited the lookups and the sample Ole DB Destination to "ignore on fail” and I did all
green but the FactCurrencyRate table is not being populated -- as described in the tutorial, so I reset the on error back to default (Fail on error option). And based on this tutorial -- I believe FactCurrencyRate
table is the table which is supposed to be populated with the data from SampleCurrencyData.txt?
In the sample data file that downloaded with all the samples I removed all the data from the text file except for 6 rows, so instead of the original 1100 or so rows, I have only 6 rows of data in the source data file (just to keep things
simple for debugging for now). I did not modify the data itself.
Here is what the (raw) data contained in SampleCurrencyData.txt looks like (from the samples that I downloaded from codeplex) – it’s supposed to be 4 columns of data – float, nvarchar, datetime, float:
0.281690141 USD
6/26/2004 0:00 0.281713948
0.281690141 USD
6/27/2004 0:00 0.281642539
0.281690141 USD
6/28/2004 0:00 0.281761573
0.283286119 USD
6/29/2004 0:00 0.283221933
0.283286119 USD
6/30/2004 0:00 0.283358363
0.281690141 USD
7/1/2004 0:00 0.281682206
Below are images of my BI Layout for Lesson 1 from this tutorial -- the FlatFile and configurations for On Fail Error, A Flow task, the 2 LookUps (CurrencyKey and DataKey), the OleDB Destination configuration, the Design view of the associated tables and
the Debug Run of Lesson 1, and the following error messages. My goal is to figure out what is going on in BI for this tutorial.
Error: 0xC020901E at Extract Sample Currency Data, Lookup Datakey [51]: Row yielded no match during lookup.
Error: 0xC0209029 at Extract Sample Currency Data, Lookup Datakey [51]: SSIS Error Code DTS_E_INDUCEDTRANSFORMFAILUREONERROR.
The "component "Lookup Datakey" (51)" failed because error code 0xC020901E occurred, and the error row disposition on "output "Lookup Match Output" (53)" 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.
Error: 0xC0047022 at Extract Sample Currency Data, SSIS.Pipeline: SSIS Error Code DTS_E_PROCESSINPUTFAILED.
The ProcessInput method on component "Lookup Datakey" (51) failed with error code 0xC0209029 while processing input "Lookup Input" (52). 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.
--this is the flat file
-- SampleCurrencyData.txt (which only contains 6 data rows for my purposes)
--and here is where I assign the data types for the colums of -- SampleCurrencyData.txt
This is the first LookUp Object -- LookUp Currency Key – The DB contains DimCurrency table.
I copied the sql from the tutorial here.
I actually have a DimCurrency table in my copy of AdventureWorksDW.
Here’s the design view of DimCurrency and a sample of the data contained in DimCurrency and the On Fail configuration
I actually have a DimCurrency table in my copy of AdventureWorksDW.
Here’s the design view of DimCurrency and a sample of the data contained in DimCurrency and the On Fail configuration
--Here is what the data looks like in the DimCurrency table
--2nd LookUp object -- LookUp Data Key – this is the LookUp
where BI errors out on Debug
--it appears this lookup is referencing the DimDate table – which I DO have in the DB.
--I can’t find the following sql in the tutorial, so I suppose BI added the sql (did it?)
--Here's how I configured for On Error
--Here is DimDate table in Design view
--Here is a sample of the original data contained in DimData
OleDB Destination
--Here is where I get lost a bit – what is going on in the destination here?
--Here's my On Error configuraino
--and here is the FactCurrencyRate table
--and here is a sample of the data contained in FactCurrencyRate
Rich P

Thank you for your reply. I changed the error handling as you suggested on the 2nd lookup to redirect to unmatched rows. Now I get all greet. I don't have the conditional split as in your diagram. But also, nothing appears to have
happened in the DB. Aren't the rows in my text file supposed to be added to the FactCurrencyRate table?
How do I get a conditional split?
Rich P
OK, sorry I forgot to reply you back.
Conditional Split was just dummy task. Ignore it.
Manipulate the data in such way that you get matching records.
Inside Source, for first 2 rows I put the dates which are available in DimDate.
1.00010001,ARS,7/1/2005 0:00,0.99960016
1.00010001,ARS,2/5/2006 0:00,1.001001001
1.00020004,ARS,9/5/2001 0:00,0.99990001
1.00020004,ARS,9/6/2001 0:00,1.00040016
1.00050025,ARS,9/7/2001 0:00,0.99990001
1.00050025,ARS,9/8/2001 0:00,1.001001001
Then in OLE DB Destination, I loaded the rows to TestFactTable.
(Now, you don't even need NO MATCH OUTPUT as there are matching records here)
Cheers,
Vaibhav Chaudhari
[MCTS],
[MCP]

How can I create a template of a Data Flow Task in SSDT?

The majority of the Data Flow Tasks that I build have the same five elements in them (OLE DB Source, Conditional Split, Derived Column, Data Conversion, and OLE DB Destination). I'd love to have a template of a Data Flow Task which already contains
these elements. Is that possible for me to create, and how do I do it?
I'm currently on SSDT 11.1, with Visual Studio Pro 2012.

Hi Tim_Dorenkamp,
If I understand correctly, you want to create a custom task, then add it as template of a Data Flow Task in SSIS Toolbox. So that you can use it in every packages.
Just as Samir suggested, we can developing a Custom Task that create a class that inherits from the Task base class, apply the DtsTaskAttribute attribute to your new class, and override the important methods and properties of the base class, including the
Execute method. The sample of create a custom task is for your reference:
http://microsoft-ssis.blogspot.com/2013/06/create-your-own-custom-task.html
Besides, as to your requirement, we can simply create a template package that including this Data Flow Task, then use this template to create new packages. If we want to use the Data Flow Task in an existing package, we can add a new package with the template,
then copy the Data Flow Task from the new package and paste it to the existing package. For more details about create a template package in SSIS, please refer to the following thread:
https://social.technet.microsoft.com/Forums/en-US/b0747467-daff-4fc8-9f81-20d68b38e5ee/change-default-for-package-protection-level?forum=sqlintegratio
If there are any other questions, please feel free to ask.
Thanks,
Katherine Xiong
Katherine Xiong
TechNet Community Support

"Syntax error or access violation" on Data Flow Task OLE DB Data Source

I am implementing expression parameter for a SQL Server connection string (like this: http://danajaatcse.wordpress.com/2010/05/20/using-an-xml-configuration-file-and-expressions-in-an-ssis-package/) and it works fine except when it reaches data flow
task - OLE DB Source task. In this task, I execute a stored procedure like this:
exec SelectFromTableA ?,?,?
The error message is this:
0xC0202009 at Data Flow Task, OLE DB Source [2]: SSIS Error Code DTS_E_OLEDBERROR. An OLE DB error has occurred. Error code: 0x80004005.
An OLE DB record is available. Source: "Microsoft OLE DB Provider for SQL Server" Hresult: 0x80004005 Description: "Syntax error or access violation".
Error: 0xC004706B at Data Flow Task, SSIS.Pipeline: "OLE DB Source" failed validation and returned validation status "VS_ISBROKEN"
When I change the SQL command above with reading from table directly it works fine. I should also add that before changing connection string of the SQL data source to use expression, the SSIS package was working fine and I know that the connection string
is fine because other tasks in the package works fine!
Any idea why?

Hi AL.M,
As per my understanding, I think this problem is due to the mismatching between the source and the destination tables. We can reconfigured every of components of the package to check the table schemas and configuration settings, close the BIDS/SSDT and then
open and try to see if there are errors.
Besides, to trouble shoot this issue, we can use the variable window to see the variable's value. For more details, please refer to the following blog:
http://consultingblogs.emc.com/jamiethomson/archive/2005/12/05/2462.aspx
The following blog about “SSIS Error Code DTS_E_OLEDBERROR. An OLE DB error has occurred: Reasons and troubleshooting” is for your reference:
http://blogs.msdn.com/b/dataaccesstechnologies/archive/2009/11/10/ssis-error-code-dts-e-oledberror-an-ole-db-error-has-occurred-reasons-and-troubleshooting.aspx
Hope this helps.
Thanks,
Katherine Xiong
Katherine Xiong
TechNet Community Support

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