Only Create Destination Flat File When There Are Rows Returned From Ole DB Source
Oct 25, 2007
Hi,
I have a data task with the following requirements:
1) Run query against database to retrieve rows
2) Add header and footer row to the result set. The footer row must contain a count of the records.
3) Write the rows to a fixed width file if there were any data rows
I have got to the point that I can create the file (using a set of tasks that includes derived columns, sorts, aggregation and merges). However the file is created regardless of whether there were data rows returned.
I can't check the row count before proceeding as this isn't set until the data task ends. And if I try to split them into separate data tasks (so that I can access this variable and perform conditional execution) it becomes harder to access the original rows.
Do you have any recommendations on the best way to achieve this?
It all seems to be very complex and I'm starting to feel that it would be easier to do this outside of SSIS...
Please help me to keep the faith!
For those interested this is a slightly simplified version of what I have so far (all within a single data task):
1.Run dummy sql to create header row 2.Run main SQL to retrieve rows
| |
| 3.Multicast
| | |
| | 4.Create footer row by doing sum() in aggregate task
| | |
| 5.Merge body and footer
| |
6. Merge header with body and footer
|
I m using SSIS and i am transfering the data from Flat File Source to the OLE DB destination File. The source file contain some corrupt data which i am transfering to the other Flat file destination file.
Debugging is succesful but i am not getting any error output in the Flat file destination file.
i had done exactly which is written in the msdn tutorial of SSIS.
Plz tell me why i am not getting the error output in the destination flat file?
Hello Everyone, Please do inform me, how can I check if there is a new record or changed record from the source.
NOTE: my source is Flat File and destination is Oracle Table.
What is needed from my side is the history load (Type 2). This is not possible thru SCD component in Integration Services, If my source is Oracle (Even after I had added the parameters in my OLE DB) Please do inform me about this process. Very important.
I am bring a date from a OLE DB Source (SQL Command) as [select cast(convert(varchar,getdate(),101) as varchar(10))] to a Flat File Destination (CSV File). The data in the source is show as "1/1/2007", which is how I need it to display in the file. The flat file defaults to showing the data as "1/1/2007 00:00:00." I did change the destination field to a String, and still, I geting the timestamp. I tried using a data conversion transformation, and I am getting bargage data when converting the date to a string.
Can any one give me insight on how to populate a date into a comma delimeted file as "1/1/2007", not "1/1/2007 00:00:00."
I have implemented a simple package that has only a Data Flow Task in the Control Flow. The corresponding Data Flow Components are as follows (in the correct order):
1. A Flat File Source adpater which parses a file containing circa 1 million rows. 2. A Script Component that generates IDs for two of my destination tables. 3. A Mulicast Component that distributes all the columns retrieved from the source file as well as the 2 generated keys. 4. Four OLE DB Destination adapters where I insert the data from the different columns together with the generated keys as primary or foreign keys respectively.
My questions are mainly about how the "Flat File Source" and "OLE DB Destination" work behind the scenes.
Questions: A. "Flat File Source" adapter: Does the "Flat File Source" adapter load all the rows from the source file into the memory and then start pushing the rows one by one into the data flow? My concern is actually about the huge sizes of my import files, which might eat up the memory. Or does the "Flat File Source" adapter load a certain number of rows, pushes them into the pipeline and then fetches the next batch based on a certain configuration?
B. "OLE DB Destination": I have set the four OLE DB destinations to "Fast Load" with a commit size of 5,000. Can I ever run into the problem of having for instance 10,000 records inserted in Table1, but only 5,000 inserted in Table2. The error case I am thinking about is as follows: After the second commit on Table1, an erroneous record occurs during the insertion in Table2. Thus, the second commit for Table2 gets rolled back and the whole package fails. In this case, I get an inconsistent state in my database. In other words, how can I synchronize the commit operation in all my destination tables, s.t. they either all commit the same batch or all do not commit it?
I have a text file that is comma delimited and im pulling it in with a flatfile connection manager. I want to read some of the data, then output another flat file but in a fixed column width. What settings do I made to the connection manager of the output flatfile ?
1. Flat File Source 2. Conditional Split, Case Good = !ISNULL(KEY) Case Error = ISNULL(KEY) 3. Case Good -> Writes to Good Flat File (with timestamp in the title) 4. Case Error -> Writes to Error Flat File (with timestamp in the title)
Most job runs have no errors but the error file is created as a zero byte file anyway. If there are no error records I don't want the error file created. How might I accomplish this?
Is there a way (perhaps a property) to capture the number of rows selected from a Flat File Data Flow Source without having to develop a script to loop through the rows and count them?
I created a SSIS package, added Script task. created data flow task programatically, trying to add a flat file source component programatically. stuck at this point.
my goal is to add flat file source component to the data flow task and insert into a table in sql server using oledb destination component all programatically.
All, I'm having an issue with the Flat File Data Flow Source returning only a limited set of the rows that are in the flat file. Basically, I connect to the flat file fine, it goes to retrieve the data (tab delimited file) and only returns 190 of 392 rows. Is there a limitation on the # of rows this data flow source can retrieve or something? I've look all through the settings and properties of the task as well as the connection manager and nothing is obvious as to what is causing this. Hopefully someone ou tthere has run into this before and can help me retrieve all rows. Thanks in advance!
I am working in one company and currently I am assigned to new project for Data Migration from company X to our company Y using SSIS. I am totally new and i just completed 5 tutorial which was gien on MSDN website.
Basically client is going to send us first flat file with 1 million records with Header, Detail and Trailer records. I want to create a Package in such a way that it dumps all this first load into 7 to 8 different tables at a time. we also have to include functionlity for validation and error check. On successfull load error file should only return Header and Trailer but no detail records. If there are any errors then error file should contain Header, Detail records which were unable to load plus trailer which we have to sent back to client.
When 2nd file comes that time we have to check whether this is new records or change (update) one depending on Flag which tells it.
This is basically high level idea of my Package what i need to create. If u guys have any question then let me know.
I know you guys are very experienced one. Anyone of you please give me some detail idea on it I would really appricate it. I have very limited time line for it.
I am testing SSIS and have created a Flat File Destination. I defined the Flat File Connection as New for the first time and it worked fine. Now, I would like to go back and modify the Flat File Connection in the Flat File Destination Editor, but it allows only to create a New connection rather allowing me to edit the existing one. For testing, I can go back and create a new connection, but if my connection had 50-100 columns then it would be an issue to re-create it from scratch.
Problem: ColA (Source) Rounding error to PARTY_NO (Destination) I have a field of text of in a flat file that the flat file connection manager Source picks up correctly 70000893? However when it gets the OLE DB Connection Destination the data has changed to 70000896. Thats before its even Written to the database. The only clue that something is wrong in the middle is the great Data viewer shows the number as 7.000009E+07 Other clues looking at the data it appears there is a rounding error on only the number that dont end in 00 ColA (Source) PARTY_NO (Destination) 71167300 71167296 70329000 70329000 70410000 70410000 Any ideas people? Thanks in advance Dave
I am transferring data from an OLEDB source to a Flat File Destination and I want the column width for all of the output columns to 30 (max width amongst the columns selected), but that is not refected in the Fixed Width Flat File that got created. The outputcolumnwidth seems to be the same as the inputcolumnwidth. Is there any other setting that I am possibly missing or is this a possible defect?
When expoting data from excel to sql server table, using SSIS package, after exporting is done, how would i check source rows are equal to destination rows. If not to throw an error message.
How can we handle transactions in SSIS 1. when some error/something happens during export and the # of rows are not exported fully to destination, how to rollback the transaction in SSIS.
When expoting data from excel to sql server table, using SSIS package, after exporting is done, how would i check source rows are equal to destination rows. If not to throw an error message.
Need to know how I can get the dynamic filename created in the FlatFile destination for insert into a package audit table?
Scenario: Have created a package that successfully outputs Dynamiclly named flat files { Format: C:Test’Comms_File_’ + ‘User::FileNumber’+’_’+Date +’.txt’
E.g.: Comms_File_1_20150724.txt, Comms_File_2_20150724.txt etc} using Foreach Loop Container :
* Enumerator Set to: “Foreach ADO Enumerator” with the ADO object source variable selected to identify how many total loop iterations there are i.e. Let’s say 4 thus 4 files to be created
*Variable Mappings : added the User::FileNumber – indicates which file number current loop iteration is i.e. 1,2,3,4
For the DataFlow task have a OLDBSource and a FlatFile Destination where Flat File ConnectionString is set up as:
I am running my package in sql server 2012, in which i am giving network path for flat file destination. And its working fine. But if i give m local path, its giving me error " cannot open data file" ...
I am using SSIS to create a weekly data extraction that will be emailed to an external agency. I can extract the data, create the file and email it without any problems but I want to compress and encrypt it before I send to give some measure of protection to sensitive data it would contain.
If I did this manually, I would simply use Winzip to compress and encrypt the file to be sent. How can I achieve a similar result programtically?
I have created a package and when i was trying to configure a flat file destination, i am getting the following error:
===================================
The component could not be added to the Data Flow task. Could not initialize the component. There is a potential problem in the ProvideComponentProperties method. (Microsoft Visual Studio)
===================================
Error at Extract Test Flat File [DTS.Pipeline]: The module containing "component "" (245)" cannot be located, even though it is registered.
===================================
Exception from HRESULT: 0xC0048021 (Microsoft.SqlServer.DTSPipelineWrap)
------------------------------ Program Location:
at Microsoft.SqlServer.Dts.Pipeline.Wrapper.CManagedComponentWrapperClass.ProvideComponentProperties() at Microsoft.DataTransformationServices.Design.PipelineTaskDesigner.AddNewComponent(String clsid, Boolean throwOnError)
Say I am going to write to a different Flat File for every product. So if there are 10 products in the data. There should be 10 Flat Files. Also the file name should include the Product Name And Product ID.
It is being done in a single Data Flow Task.
Right now the Property Expression for the File Name is which is not working)
i am trying to load almost 15 csv files to my oledb destination can i use for each container to map the source columns dynamically to destination table during data flow task
I have a database app, and we're implementing various data export features using SSIS.
Basically, it's a couple of straight extracts of various recordsets/views, etc. to CSV (flat files) from our SQL Server 2005 database, so I'm creating an SSIS package for each of these datasets.
So far, so good, but my problem comes here: My requirements call for users to select from a list of available columns the fields that they want to include in their exported file. Then, the package should run, but only output the columns specified by the user.
Does anyone have any idea as to the best way to accomplish this? To recap, at design time, I know which columns the users will have to choose from, but at run time, they will specify the columns to export to the flat file.
Dynamically load a flat file from a dynamic source table-
The source table metadata is known via the SYSOBJECTS and SYSCOLUMNS tables- I can pull the column names, type and lengths from these tables based on the table name. (my goal is pretty simple- pull data from a table in our database, and save it down to a flat file)
Would this be enough to dynamically create the destination flat file? If so, how do I do it?
I have a dataflow task with two components: OLE DB source --> Flat File destination
In the OLE DB source, I am accessing a view, not a table.
However, when I attempt to map the view's input columns to the flat file destination columns, the screen is completely blank. There's none of the usual drop downs that let you select the column name, nor can I drag and drop the input column from the upper pane to the lower pane.
Attempting to write to a flat file, I get the following Warning then Errors:
~~~~~~~~~~~~~~~~~~ Warning: 0x80070005 at Data Flow Task, Detail to dat File Writer [54]: Access is denied.
Error: 0xC020200E at Data Flow Task, Detail to dat File Writer [54]: Cannot open the datafile "DetailOutWhat_1.dat".
Error: 0xC004701A at Data Flow Task, DTS.Pipeline: component "Detail to dat File Writer" (54) failed the pre-execute phase and returned error code 0xC020200E. ~~~~~~~~~~~~~~~~~~~
There should be no reason that this project can't open DetailOutWhat_1.dat, as it has successfully done it earlier today...
UNRELATED: Is it possible to comment out a transform or destination file while in the Designer View?
Currently we're working on an SSIS package to extract data from a SQL Server database to several fixed width flat files.
Some of the data needs to be formatted/converted in a certain way DateTimes need to be formatted in ISO8601Booleans need to be 0/1 instead of False/True...Has anybody any idea what the preferred approach (best practice) would be to do these conversions?Convert everything in the select query? What about readability of your query? Do it somewhere in the package? If so, how?....
