Looking For A Good Example Of A Script Task In The Dataflow That Writes To A File
Jul 4, 2006
I need to write back to a legacy system in the form of flat file --the first row would be a header and the remaining rows would be the actuals rows of data--each field would have a column delimiter of , and a row delimter of CRLF.
The source is a SQL Server 2005 table.
Im looking for a good example of a script task in the dataflow section that writes to a file.
Can anyone show me the code how to do this or point me to a link.
thanks in advance
Dave
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Apr 4, 2008
Hi,
I am using SQL Server2005 for SSIS. I want to change the source connection dynamicaly evertime.
Let me clear, I have to extract some column from excel to MS-Access. I am using Data Flow Task and able to successfully complete the job. But problem is that, whenever a new file comes , i must have to reconfigure my Excel Source.
All the time column in file are same, so no need to worry about mapping but how can my package select a file automatically.
I have a directory, suppose "C:dpak". I should able to pick the filename and sheet name from this directory every time when my package will execute.
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Aug 26, 2015
I have a dataflow task that load data from flat file to SQL Table.
In need to rename the file with the datestamp(current date ) at the end of filename.
I am daily getting a file like Vendor_20150820_2484.csv , Vendor_20150821_2484.csv as the file name getting changed so I cannot load data .
I want to change the file name Vendor_20150820_2484.csv to Vendor_yyyymmdd.csv.
This file I will use to load into sql...
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Apr 29, 2015
I've a dataflow task on For Each Loop container at control flow of SSIS package. This For Each Loop container reads the CSV files from the specified location one by one, and populates a variable with current file name. Note, the tables where I would like to push the data from each CSV file are also having the same names as CSV file names.On the dataflow task, I've Flat File component as a source, this component uses the above variable to read the data of a particular file.
Now, here my question comes, how can I move the data to destination, SQL table, using the same variable name?I've tried to setup the OLE DB destination component dynamically but it executes well only for first time. It does not change the mappings as per the columns of the second CSV file. There're around 50 CSV files, each has different set off columns in it. These files needs to be migrated to SQL tables using the optimum way.
Which is the best way to setup the Dataflow task for this requirement?Also, I cannot use Bulk insert task here as we would like to keep a log of corrupted rows.
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Mar 7, 2007
1 :Control Flow Excute SQL task: Truncate Table
2: Dataflow Task: Datareader--Script componant--OLE DB Destination (SQL Server 2005--a single table --always around 600,000 rows)
How do I set up a transaction where if there is a failure the Truncate Table command will roll back---and the OLE Destination (A single SQL Server table) will be left the same as before the load started.
Another question with that volume of data --600,000 rows will a truncate table be pratical in a transaction
Any ides welcome
thanks in advance
David
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Jun 12, 2007
An Execute SQL task takes 1 min to run a statement "insert into Mytable select * from view_using_joins"
Output: 10,225 rows affected.
But a Dataflow task configured to fetch data from the same view_using_joins into MyTable takes hours to do the same.
Could you please explain why is it so ?
Thanks
Subhash Subramanyam
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Dec 24, 2007
Hi Pals,
Here is my scenario in my ETL process, I have one DataFlow task.
Assuming that i have 10 clean records in my source database and i need to load all the 10 recs into my target table.
IS there any means of cross checking the no of rows from source table and number of rows loaded into my target table.
Any suggestions are greatly appreciated.
Thanks & Regards.
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Jan 18, 2007
Hi:
I am getting the following error when I start debugging my Package, I am not sure what this is related to, but basically, input (datatype is a int, and its mapped to a column which is also int), so I am not sure whats happening here. The input column is actually a derived column, and its set as a 4 byte un-signed int, please advice on where should I start looking to troubleshoot this issue. This loanapplicationid is actually a user variable that is utilized by other tasks in my control flow as well:
Error: 0xC020901C at InsertApplicationCL5, OLE DB Destination [16]: There was an error with input column "LoanApplicationID" (1161) on input "OLE DB Destination Input" (29). The column status returned was: "The value violated the integrity constraints for the column.".
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Jun 21, 2007
Hello all,
I got a text file with two columns. and I need to generate a integer key automatically with the row number (or any distinct number, I thought row number will be OK). and when I make the data flow task to import this text file into a raw file I need to get the unique rownumber as Id.
How can I make this in the data flow tak??
regards,
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Sep 28, 2007
I written a SSIS package to import a table from one database to another database. I used dataflow task with oledb source and oledb destination with fastload. For 2 million records its taking 5 min . The same import using DTS I am getting in 2 mins. DTS package is more faster than SSIS package ?. any reasons why SSIS is taking more time?
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Nov 21, 2006
Need help regarding ssis dataflow task
I need to create a ssis package. I want to import the data from a flat file to a table.
Lets say, the table has 5 columns -- col1, col2, col3, col4 , col5.(Assume that all columns can be NULLABLE) The datafile contains the data related to only three columns say col1, col2, col3. So when I use dataflow task to import the data from the file to the table, I will only get three columns, col1, col2, col3. Columns col4, col5 will be NULL.
However, I want to populate columns col4, col5 with some values which are stored in the variable.
IS there any way to do this??
Any help would be appreciated.
Thanks
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Feb 13, 2007
I want to be able to loop through a view and execute a dataflow task for each record. I would like to pass the value of a column to the dataflow task to be used as a parameter in a data reader.
How can I do this?
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Jan 10, 2007
Hi,
I am getting data from an external source. External data has a column called "Type". I have a variable in my package which contains the list of types as shown below:
Filtered_type_List = 2,4,8,10,11
If this variable(Filtered_type_List) is blank, then I need all the data from the external source and if it is not blank then I only need the records matching to his list. How can I implement this in DataFlow Task?
Thanks
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Jan 29, 2007
In the control flow I have an "Execute SQL Task" that executes a stored procedure. The stored procedure returns a result set of about 2000 rows of data into a package variable that has been typed as Object to contain the data.
What I have not been able to figure out is how to access the rows of data (in the package variable) from within a data flow task. There does not seem to be a data flow source task to perform that operation.
What am I missing that would make this easy?
...cordell...
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Aug 11, 2005
I have debugged a Control Flow script task and everything went as expected. I put a breakpoint somewhere in my script code, press F5 and execution will break there.
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Apr 13, 2008
Hi All,
I want to show the error message during Data Flow In SSIS, if an error would occur. I am able to redirect the row in file but i want to display the error like "Error : Its Not Set".
Is it possible? if please help me.
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Jul 5, 2007
Hi,
In terms of data flow tasks, when say we load text files into databases.
Is it possible to have it in a way so that if a certain record (line in the text file) fails to load due to watever reason, it gets written to another table, but the rest of the records still get loaded?
I try to do so and end up with the whole data flow task failing and it stalls at the record that had the error and doesn't seem to continue forward.
I just used the red arrow (on failure) and put that to another SQL destination object. But yeah that didnt work.
If someone has a better way of doing so, would be awesome if you can share that.
Cheers
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Aug 14, 2007
Hello, to give you a background on where I'm coming from:
I have an SSIS Package with a global String variable that has an sql statement. so it says something like: "Select * from MyTable "
I than have a SQL Script Task where I append a WHERE Statement to my string.
Than in the Dataflow Task when I select the source database, I run command from Variable.
When I run the package I get an error that my string is too long. My string is about 750 characters that I'm trying to pass through.
Is there some limitation to this?
I have ran the raw SQL Command in the SQL manager and it runs fine. I have built a million of these packages, just not one with such a large string.
If it is the case that it is just too long, is there a work around to that?
Thanks,
Rusty.
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Apr 19, 2007
I have a problem whit loading XML-files into SQL server.
I iterate over the XML-files with the "for each file" component and use the XML source within a Data flow task. This works great until the file count got bigger. After say 1000 files the XML source returns error 0x8007000E. I think this means out of memory. Does anyone have an idea how to solv this. The load must be able to handle up to 5000 files in one batch.
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Nov 21, 2006
Does anyone know how to create an eventhandler for a dataflow task specific events (OnPipelinePostEndOfRowset, OnPipelineRowsSent, etc.)? These events are available for logging via the standard logging infrastructure, but there seems to no eventhandler for them.
The reason I'm interested is that parsing information logged by these events using builtin log providers is not easy (eg., the number of rows sent gets burried somewhere in the message column (i'm using sql provider). I'd like to capture this information and record it cleanly in a custom ssis metadata database i'm building. Any ideas are welcome. Thanks.
-alex
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Jan 11, 2008
Hi,
I have a package that has several FTP tasks in sequence:
[ftp task 1]->[ftp task 2]->[ftp task 3]->[ftp task 4]
[Ftp task 4] fails about 20% of the time, for no apparent reason. This is the error message I receive:
[FTP Task] Error: Unable to receive files using "FTP Connection Manager".
The problem is, it works most of the time (80%), but every 4 or 5 tries, it fails. This makes NO sense to me. Is this a bug perhaps?
Please help... should we use an ftp script instead, as the ftp task seems rather unreliable.
Thanks
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Dec 27, 2007
Maybe I am mistaken ( most likely ). But I am missing a dataflow task, which would do something similar like Throw Execption.
The project I am currently working on needs to validate a lot of different data. And sometimes incorrect data ( corrupted, incomplete or unexepected ) is coming from the source system. In case of this I need to trigger an error and discard the complete row or batch depending on the situation.
For example:
In our source system we have some flag fields. And certain combinations of flags are not logical (business rules) but the system allows data to be inputted in this unlogical ways. And because we are creating the system I am expecting some combinations flags which are allowed but not properly defined in the specification.
So when I use a conditional split, I want the default output to trigger an error instead of an output.
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Feb 13, 2007
How can I pass a variable to a DataReader in a DataFlow task?
My SqlCommand for the DataReader is:
SELECT CustName, CustCode FROM Customers WHERE CustCode = '?'
The DataFlow task is nested in a ForEach loop. I confirmed that the variable is changing with each loop by using a ScriptTaks and a message box. However, the DataReader SqlCommand does not seem to be updating.
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Oct 10, 2006
I am trying to use an XML Source on xml data from an XML webservice, I am putting the document into a variable the trying to import the data from there with the XML Source, but I am getting an error telling me that truncation occured
The Error is "[XML Source [1]] Error: The "component "XML Source" (1)" failed because truncation occurred, and the truncation row disposition on "output column "linking" (1579)" specifies failure on truncation. A truncation error occurred on the specified object of the specified component."
The linking column mensioned in the error is sometime quite a long string but there is nowhere in the XML Source editor to change the size.
HELP!
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Jul 10, 2006
HI, I have to copy tables (approx. 60) content from one database to another using SSIS. I know that I can call an execute SQL task to execute an INSERT INTO <target table> SELECT * FROM <source table>.
I was wondering if I could use a single dataflow and change its source and target transform data source to do the same as above. In a script component, is it possible to load a package and modify its dataflow to simulate the INSERT INTO <target table> SELECT * FROM <source table>?
Thank you,
Ccote
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Oct 3, 2007
I was using the code in this thread (http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=1371094&SiteID=1) to create a console application which can build the SSIS package dynamically and run the package.
If the source column and destination column names are of different cases then the application was failing during the mapping. So I modified the for each loop like below. Still this is not a fool proof method, this will work as long as all characters in the column names are upper or lower.
for eg., Source column = empl_id, Destination column = EMPL_ID, in this case the below code will work. if the source column or destination column is Empl_Id, then the below mapping will fail.
Code Block
foreach (IDTSVirtualInputColumn90 vColumn in vInput.VirtualInputColumnCollection)
{
IDTSInputColumn90 vCol = destnDesignTime.SetUsageType(input.ID, vInput, vColumn.LineageID, DTSUsageType.UT_READWRITE);
try
{
destnDesignTime.MapInputColumn(input.ID, vCol.ID, input.ExternalMetadataColumnCollection[vColumn.Name.ToLower()].ID);
}
catch
{
destnDesignTime.MapInputColumn(input.ID, vCol.ID, input.ExternalMetadataColumnCollection[vColumn.Name.ToUpper()].ID);
}
}
So how can I map the columns irrespective of the cases?
Thanks
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Aug 22, 2007
Hi,
I have a package in which i have programatically created dataflow task. It used to work fine but now it fails with series of errors out of which one is below
Error 30002: Type 'MainPipe' is not defined. Line 63 Columns 33-40 Line Text: Dim DataFlowTask As MainPipe = CType(DataFlowTaskHost.InnerObject, MainPipe)
It seems all the function and classes referd from following dlls is not working:
Microsoft.SqlServer.DTSRuntimeWrap.dll
Microsoft.SqlServer.DTSPipelineWrap.dll
I say so because i get the following error also:
Error 30652: Reference required to assembly 'Microsoft.SqlServer.DTSRuntimeWrap, Version=9.0.242.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91' containing the type 'Microsoft.SqlServer.Dts.Runtime.Wrapper.IDTSConnectionManager90'. Add one to your project. Line 86 Columns 33-64 Line Text: DtsConvert.ToConnectionManager90(ChildPackage.Connections(""Source"")) These dlls are in GAC and in C:Program FilesMicrosoft SQL Server90SDKAssemblies with same version but still it gives above error.
Thanks
Mohit
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Apr 7, 2008
Hi All,
I am using a Data Flow task which copies data from an Excel Source to a SQL Database Table Destination. From 15 columns I require only 10 columns to be imported to the DB Table. So I have mapped those colums. In SQL DB there is a colum called say X, whose value should be the "Remedy" for all the columns which are imported. Is there any task that can achieve it.
Please Help.
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Mar 29, 2007
Hello All,
I am trying to convert an application created using DTS classes to SSIS object model. I have found following code in the application.
For x As Integer = 1 To mTask.Properties.Count
If mTask.Properties.Item(x).Name = "SourceConnectionID" Then
CnID = mTask.Properties.Item(x).Value
Exit For
End If
Next
For x As Integer = 1 To mPkg.DTSPackage.Connections.Count
If mPkg.DTSPackage.Connections.Item(x).ID = CnID Then
Return mPkg.DTSPackage.Connections.Item(x).Name
End If
Next
Return mTask.Properties.Item("SourceObjectName").Value
How can I retrieve or Set "SourceConnectinId", "SourceObjectName" of a data flow task in SSIS
Please help me to solve this problem.
Thanks in advance
Subin
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Apr 25, 2006
I Can't reproduce the error if I run the package stand-alone.
I'm using the same lookup call (same table, etc.) in 2 packages that are running in parallel (called by a parent package).
[LKP_UnderwriterId [72283]] Error: An OLE DB error has occurred. Error code: 0x80040E05. An OLE DB record is available. Source: "Microsoft OLE DB Provider for SQL Server" Hresult: 0x80040E05 Description: "Object was open.".
Anyone seen this one?
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Jul 18, 2007
Hi,
I have a 'Execute SQL Task' in my 'control flow', my 'Execute SQL Task' will return a value which I am assigning to a variable. Based on the value of the variable, I need to control my other flows. If the variable's value is 1 then I should invoke a dataflow, else I should write a failure error message in event viewer. Please could someone provide some inputs on how this can be done.
'Execute SQL Task' ----->value 1 ------>data flow to be executed
'Execute SQL Task' ----->value !=1 ------> write some error message in the event viewer and no tasks should be executed after that.
Thanks
raj
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Nov 3, 2006
Hi everyone,
do you know any articles on foreach loop container that loops over a dataflow task...pls tell me....
thanks in advance,
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Oct 7, 2014
I am trying to create a SSIS package that will create a csv of a dataset for daily events in the database. However there will be days that there was no activity and thus an empty dataset. The package still runs fine but I want to stop the package if the dataset is empty.
FLOW:
DATA FLOW task: get daily data and put in CSV file
FTP TASK: upload the file to FTP server
MAIL/Copy file task: Move the file and then send a confirmation mail on task completion status.
Pretty simple and it all works great, I do have a few complexities in there. What I would like to add and I am at a loss is at the beginning, if the OLE DB Task resultset is empty then move to Mail Task otherwise process normally. I have tried conditional split, derived columns, the only thing I haven't tried in Script task and am not sure about that yet.
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