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Split Pipeline


 

This is probably obvious, but how do I split a pipeline. I.e. I've got a data source with 200 columns - I need to split this into 20 pipelines each containing 10 of the original columns.


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Related Messages:
How Do I Write Multiple Pipeline Buffer To Multiple Targets Based On A Calculated Value In The Pipeline Buffer
The scenario is as follows: I have a source with many rows. Each row has a column called max_qty_value. I need to perform a calculation using another column called qty. This calculation is something similar to dividing qty/(ceiling) max_qty_value. Once I have that number I need to write an additional duplicate row for each value from the prior calculation performed. For example, 15/4 = 4. I need to write 4 rows to the same target table as in line information for a purchase order.

 

The multicast transform appears to only support fixed and/or predetermined outputs. How do I design this logic in SSIS to write out dynamic number of rows to a target table.

 

Any ideas would be greatly appreciated.

 

thanks

John

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Pipeline
Hi, 

I want to incorporate this code but I dont know how to import Microsoft.SqlServer.Dts.Pipeline in an Integration Services Project template.  I was thinking of putting this code in the script task but still, I cant import Pipeline.  Add reference list does not have it as well.  Please let me know how to incorporate this code.  Thanks!

Code:
if (ComponentMetaData.RuntimeConnectionCollection["SourceFileConnection"].ConnectionManager != null)
{
      cm = DtsConvert.ToConnectionManager(ComponentMetaData.RuntimeConnectionCollection["SourceFileConnection"].ConnectionManager);
 
if (cm.CreationName == "FILE")
 
{
 
fileUsage = (Microsoft.SqlServer.Dts.Runtime.DTSFileConnectionUsageType)cm.Properties["FileUsageType"].GetValue(cm);
 
if (fileUsage == Microsoft.SqlServer.Dts.Runtime.DTSFileConnectionUsageType.FileExists)
 
{
 
connectionString = ComponentMetaData.RuntimeConnectionCollection["SourceFileConnection"].ConnectionManager.AcquireConnection(transaction).ToString();
 
if (connectionString == null || connectionString.Length == 0)
 
{
 
throw new Exception("No file name specfiy");
 
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}
 
else throw new Exception("Incorrect file connection usage type, should be set to exiting file type");
 
}
 
else throw new Exception("Connection is not a file connection");
 
}
 
else throw new Exception("Connection is not as assign");
 

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SQL 2K5 SSIS DTS.Pipeline Errors
We have deployed an SSIS package successfully to production. We needed to apply SP1 to fix a different issue and now have encountered a new problem. We have numerous Data Reader Sources in different Data Flow Tasks that connect to a IBM iSeries (DB2) source. Pretty simple extracts that have worked fine in the past. They pump the data into staging tables on the SQL2K5 instance running the package (64-bit).

After we applied SP1 however, all of the Data Reader tasks fail AFTER they successfully copy the records with the following error.

[iSeries Invoice Details [1]] Error: System.NullReferenceException: Object reference not set to an instance of an object. at Microsoft.SqlServer.Dts.Pipeline.DataReaderSourceAdapter.PrimeOutput(Int32 outputs, Int32[] outputIDs, PipelineBuffer[] buffers) at Microsoft.SqlServer.Dts.Pipeline.ManagedComponentHost.HostPrimeOutput(IDTSManagedComponentWrapper90 wrapper, Int32 outputs, Int32[] outputIDs, IDTSBuffer90[] buffers, IntPtr ppBufferWirePacket)

If I delete the source and destination and recreate identical transforms, they work fine, but I don't feel like rebuilding all of the extracts. Any ideas! The problem occurs in all environments that we've tried.

TIA,
Michael Shugarman
P.S. I just tried the SP2 CTP, but that doesn't fix the problem.

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Remove Duplicates Within Pipeline
I have a situation where we get XML files sent daily that need uploading into SQL Server tables, but the source system producing these files sometimes generates duplicate records in the file.  The tricky part is, that the record isn't entirely duplicated.  What I mean, is that if I look for duplicates by grouping the key columns, having count(*) > 1, I find which ones are duplicates, but when I inspect the data on these duplicates, the other details in the remaining columns may differ.  So our rule is: pick the first record, toss the rest of the duplicates.

Because we don't sort on any columns during the import, the first record kept of the duplicates is arbitrary.  Again, we can't tell at this point which of the duplicated records is more correct.  Someday down the road, we will do this research.

Now, I need to know the most efficient way to accomplish this in SSIS.  If it makes it easier, I could just discard all the duplicates, since the number of them is so small.

If the source were a relational table, I could use a SQL statement to filter the records to remove the duplicates, but since the source is an XML file, I don't know how to filter these out in the pipeline, since the file has to be aggregated to search for dups.

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Hi
 
I have an existing application that programmatically builds SSIS 2005 packages.
 
I'm trying to get to working with the February CTP of SQL Server 2008. Having changed all the 2005 references to 2008 references and things like IDTSComponentMetaData90 to IDTSComponentMetaData100, my application compiles okay now, but hits a problem when it tries to create a Data Flow task.
 
The code which worked fine before (and seems to still be the recommended way in Books Online is):
 



Code Snippet
 
Dts.TaskHost myMainPipe = (Dts.TaskHost)container.Add("DTS.Pipeline.1");
 
 



However, this now produces the exception:
 

Cannot create a task with the name "DTS.Pipeline.1". Verify that the name is correct.
 
Should I be using a different moniker now? I took a stab at "DTS.Pipeline.2", but that didn't make a difference.
 
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Andrew

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Is there any way I can capture the below information? I want to capture this to get the no of rows processed by each transformation.

[DTS.Pipeline] Information: "component "abc" (3798)" wrote 2142 rows.
[DTS.Pipeline] Information: "component "xyz" (4223)" wrote 1026 rows.
[DTS.Pipeline] Information: "component "abc2" (4324)" wrote 7875 rows.

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SSIS [DTS.Pipeline] Error
Hi I have created a simple SSIS project on my client that carries out 4 Data Flow tasks, each one copying a few hundred rows from an Oracle 10.0.2 database. This works OK and will also run in debug mode fine.

 

I have copied the package to the file system on our development server and get the following error when in debug mode:-

[DTS.Pipeline] Information: Validation phase is beginning.
Progress: Validating - 0 percent complete
[OLE DB Source [1]] Error: SSIS Error Code DTS_E_CANNOTACQUIRECONNECTIONFROMCONNECTIONMANAGER.  The AcquireConnection method call to the connection manager "Server.user" failed with error code 0xC0202009.  There may be error messages posted before this with more information on why the AcquireConnection method call failed.
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Validation is completed
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Validation is completed

If you go to the source of each flow task and select preview you can retreive the data.

 

Thanks Paul

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Microsoft.SqlServer.Dts.Pipeline.BlobColumn
I am using Component Script to do - Transforming Comma-delimited list row data to column

and I want to use MessageBox to see the value
 

 

Dim DataPnts As String


   DataPnts = Row.DataPnts.ToString()  -- this is my input column (data type = text in Source table and I put as Unicode string [DT_WSTR] in Output column)

 

MessageBox.Show(DataPnts, "DataPoints1", MessageBoxButtons.OK)  

 

 ---and why can't I see it. It gives me some message with Microsoft.SqlServer.Dts.Pipeline.BlobColumn. Why?

 

Values = DataPnts.Split(CChar(","))

 

Please point me to more info on how to do transform Comma-delimited list row data to column.

 

Thanks.

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Hi,

Does anybody have any experience implementing logging within a data flow task? ie. logging timestamps for SCD component start and finish times.

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Im am pulling down table called PRV from another server throught an ODBC connection in my SSIS package. I have the source and destination task all set up. I get this error when i run the packag. Most of the time, the error is pretty self explanatory but this one is .....beyond me. Any ideas.

Error: 0xC02090F5 at PRV TABLE  FROM CYPRESS, PRV SOURCE [1]: The component "PRV SOURCE" (1) was unable to process the data.
Error: 0xC0047038 at PRV TABLE  FROM CYPRESS, DTS.Pipeline: The PrimeOutput method on component "PRV SOURCE" (1) returned error code 0xC02090F5.  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.
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Error: 0xC0047039 at PRV TABLE  FROM CYPRESS, DTS.Pipeline: 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.
Error: 0xC0047021 at PRV TABLE  FROM CYPRESS, DTS.Pipeline: Thread "WorkThread0" has exited with error code 0xC0047039.
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Information: 0x402090DF at PRV TABLE  FROM CYPRESS, PRV Destination [4076]: The final commit for the data insertion has started.
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An OLE DB record is available.  Source: "Microsoft SQL Native Client"  Hresult: 0x80004005  Description: "Arithmetic overflow occurred.".
An OLE DB record is available.  Source: "Microsoft SQL Native Client"  Hresult: 0x80004005  Description: "Arithmetic overflow error converting IDENTITY to data type smallint.".
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Information: 0x4004300B at PRV TABLE  FROM CYPRESS, DTS.Pipeline: "component "PRV Destination" (4076)" wrote 113136 rows.
Task failed: PRV TABLE  FROM CYPRESS

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Hi

I have a SSIS project that has one parent package and three child packages. When I run the project on my development machine in debug mode it works fine. Also if i run the packages using dtexec on my development machine it still works fine. However the problem comes in when I try and run the project using dtexec on the staging server i get the following error: 

Microsoft.SqlServer.Dts.Pipeline.DoesNotFitBufferException: The value is too large to fit in the column data area of the buffer.

 

does anyone have any idea how to fix this please?

thanks

G

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Alot of people complain, legitamately, that they wish to remove columns from the SSIS pipeline that they know are not going to be used again. This would help to avoid the "clutter" that can exist when there are alot of columns in the pipeline.

If you are one of those people then click-through below, vote and (most importantly) add a comment. The more people that do that - the more likely we are to get this functionality in a future version.

SSIS: Hide columns in the pipeline
https://connect.microsoft.com/SQLServer/feedback/ViewFeedback.aspx?FeedbackID=252462

 

-Jamie

 

 

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Hello,


I'm wish to receive pipeline events fired by a SSIS package.


I execute the package successufully with the following code (c#):


MyEventListener eventListener = new XplorerEventListener();
DtsApplication app = new DtsApplication();
Package pkg = app.LoadPackage("c: est.dstx", null);
pkg.Execute(null, null, eventListener, null, null);


MyEventListener is inherited from DefaultEvents, overriding all OnXXX methods.


It works perfectly, however I cannot intercept the following events:


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FileNameVersionString: 2000.90.1049.0
IconFile: C:Program FilesMicrosoft SQL Server90DTSPipelineComponentsTxMerge.dll
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ID: {08AE886A-4124-499C-B332-16E3299D225A}
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ShapeProgID:
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Can anyone helps Me?

Thanks

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Does anybody have any ideas I can try to get my export to work. 
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Edit:
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This subject is not mentioned in Wrox SSIS book  nore in Kirk Haseldens book.

When you run the SCD task in the data flow you will get an OLEDB command that actually do this, issue a TSQL-statement.

Is this correct?

Regards

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I have a SSIS package which pumps data from one server to other without any additional steps.  There are 11 tables for which data is transferred.  And this packages runs fine on two different environments but fails in one environment i.e. on SIT.
 
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[DTS.Pipeline] Information: Pre-Execute phase is beginning.
 
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Progress: Pre-Execute - 1 percent complete
Progress: Pre-Execute - 2 percent complete
Progress: Pre-Execute - 3 percent complete
Progress: Pre-Execute - 4 percent complete
Progress: Pre-Execute - 5 percent complete
Progress: Pre-Execute - 6 percent complete
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Connecting Data Flow Components Programmatically
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' Microsoft SQL Server Integration Services Script Task

' Write scripts using Microsoft Visual Basic

' The ScriptMain class is the entry point of the Script Task.

Imports System

Imports System.Data

Imports System.Math

Imports Microsoft.SqlServer.Dts.Runtime

Imports Microsoft.SqlServer.Dts.Pipeline

Imports Microsoft.SqlServer.Dts.Pipeline.wrapper

Imports Microsoft.SqlServer.Dts.

 

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Public Sub Main()

'

Dim package As Microsoft.SqlServer.Dts.Runtime.Package = _

   New Microsoft.SqlServer.Dts.Runtime.Package()

Dim e As Executable = package.Executables.Add("DTS.Pipeline.1")

Dim thMainPipe As Microsoft.SqlServer.Dts.Runtime.TaskHost = _

   CType(e, Microsoft.SqlServer.Dts.Runtime.TaskHost)

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End Sub

End Class
 

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Thanks

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Thanks

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String sValue = System.Text.Encoding.Default.GetString(Convert.FromBase64String(this.dataSet.Tables[0].Rows["Data"].ToString()));

 
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Thanks in advance
 

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Is 8,000 or so rows of data "large" and unwieldly in SQL terms?

Would splitting this data into 2 tables - one small table for current and future reservations and one larger archive table then using a UNION SELECT query to make archive information seachable be a significant improvment on server resources/load or am I making the whole thing more complicated than it need be as 8,000 rows of data is nothing to worry about.............

What did they say about a little bit of knowledge being a dangerous thing?

Thanks in advance of any guidance to a neophyte!!?

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SPLIT() UDF
SQL UDF split()

The objective of this article is to help the SQL developers with an UDF that can be used within a stored procedures or Function to split a string (based on given delimiter) and extract the required portion of the string.

Scripting languages like VB script and Java script have in-built split() functions but there is no such function available in SQL server. In my experience this function is really handy when you’re working on an ASP application with SQL server as backend, whereby you’ll need to pass the ASP page submitted values to the SQL stored procedure.

To give a simple example, in a typical Monthly reporting ASP page – the users would select a range of months and extract the information pertaining to this date range. Classic implementation of this model is to have an ASP page to accept the input parameters and pass the values to the SQL stored procedure (SP). The SP would return a result set which is then formatted in the ASP page as results.

If the date range is continuous ie. JAN07 to MAR07 then the SP can typically accept a ‘From’ and ‘To’ range variables. But I’ve encountered situations whereby the users select 3 months from the current year and 2 months from previous year (non-continuous date ranges). In such scenario the SP cannot have a date range as input parameters.

Typically an ASP programmer would do is by having a single date input parameter in the SP and call the SP within a loop in the ASP page. This is an inefficient way of programming as contacting the database server within an ASP loop could cause performance overhead especially if the table being queried is an online transaction processing table.

Here is how I handled the above situation.

1.Declared one string input parameter of type varchar(8000) (if you’re using SQL 2005 then it is advisable to use Varchar(Max))
2.Pass the ASP submitted values as string, in this case the months selected by user would be supplied to the SP as a string
3.Within the Stored Procedure I’ll call the split() function to extract each month from the string and query the corresponding data

The basic structure of the stored procedure is as pasted below:-

CREATE PROCEDURE FETCH_SALES_DETAIL (
@MONTH VARCHAR(MAX)
)
AS
BEGIN
DECLARE @MONTH_CNT INT,@MTH DATETIME
SET @MONTH_CNT=1
WHILE DBO.SPLIT(@MONTH,',',@MONTH_CNT) <> ''
BEGIN
SET @MTH = CAST(DBO.SPLIT(@MONTH,',',@MONTH_CNT) AS DATETIME)
--<<Application specific T-SQLs>>-- (BEGIN)
SELECT [SALES_MONTH],[SALES_QTY],[PRODUCT_ID],[TRANSACTION_DATE]
FROM SALES (NLOCK)
WHERE [SALES_MONTH]= @MTH
--<<Application specific T-SQLs>>--(END)

SET @MONTH_CNT=@MONTH_CNT+1
END
END

Dbo.SPLIT() function takes 3 parameters
1)The main string with the values to be split
2)The delimiter
3)The Nth occurrence of the string to be returned

The functionality of the UDF is as explained STEP by STEP:

1.Function Declaration
CREATE FUNCTION [dbo].[SPLIT]
(
@nstring VARCHAR(MAX),
@deliminator nvarchar(10),
@index int
)

RETURNS VARCHAR(MAX)

Function is declared with 3 input parameters:-
@nstring of type VARCHAR(MAX) will hold the main string to be split
@deliminator of type NVARCHAR(10) will hold the delimiter
@index of type INT will hold the index of the string to be returned
2.Variable Declaration
DECLARE @position int
DECLARE @ustr VARCHAR(MAX)
DECLARE @pcnt int

Three variables are needed within the function. @position is an integer variable that will be used to traverse along the main string. @ustr will store the string to be returned and the @pcnt integer variable to check the index of the delimiter.
3.Variable initialization
SET @position = 1
SET @pcnt = 1
SELECT @ustr = ''
Initialize the variables
4.Main functionality
WHILE @position <= DATALENGTH(@nstring) and @pcnt <= @index
BEGIN
IF SUBSTRING(@nstring, @position, 1) <> @deliminator BEGIN
IF @pcnt = @index BEGIN
SET @ustr = @ustr + CAST(SUBSTRING(@nstring, @position, 1) AS nvarchar)
END
SET @position = @position + 1
END
ELSE BEGIN
SET @position = @position + 1
SET @pcnt = @pcnt + 1
END
END

4.1The main while loop is used to traverse through the main string until the word index is less than or equal to the index passed as input parameter.
4.2Within the while loop each character within the string is verified against the delimiter and if it does not match then local word count variable is checked against the input index parameter
4.3If the values are same ie., the input variable index and the word being processed in the while loop are the same then the word is stored in the @ustr variable. If the values does not match then the @position variable is incremented.
4.4If the character matches with the delimiter then the word count variable @pcnt is incremented along with the @position variable

5.Return the value
RETURN @ustr

I hope this article would benefit those who are looking for a handy function to deal with Strings.

Feel free to send your feedback at dearhari@gmail.com

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