Dynamic Columns For Flat File Destination?
Jul 10, 2006
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.
Any help or guidance here is greatly appreciated
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May 4, 2007
Hi,
I am trying to access from OLE DB source. And based on one of the columns, I need to write the data to a Flat File Destination.
For Example,
CustID, ProductID, Product Name, Product Description
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)
Code Snippet@DestFolder + [Data Conversion].ProductID + @TodaysDate + ".txt"
The ProductIDs are in the ascending order. Any help or guidance?
Thanks
-Leo
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Apr 17, 2008
Anyone knows how to give the name of a flat file specifying today's week number??
filename_ww
for today it should be filename_16 (since week number is 16)
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Jan 4, 2006
Here's what I want to do -
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?
Thanks
-rob
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Jul 24, 2015
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:
@[User::Output_Path] + "Comms_File"+ @[User:: FileNumber] +"_" + replace((DT_WSTR, 10) (DT_DBDATE) GETDATE(),"-","")+ ".txt"
All this successfully creates these 4 files:
Comms_File_1_20150724.txt, Comms_File_2_20150724.txt, Comms_File_3_20150724.txt, Comms_File_4_20150724.txt
Now the QUESTION is how do I get these filenames as I need to insert them into a DB Audittable. The audit table looks like this:
CREATE TABLE dbo.MMMAudit
(
AuditID INT IDENTITY(1, 1) NOT NULL,
PackageName VARCHAR(100) NULL,
FileName VARCHAR(100) NULL,
LoadTime DATETIME NULL,
NumberofRecords INT NULL
)
To save the Filename & how many records in each file in our Audit Table, am using an Execute SQL Task and configuring it as this:
Execute SQL Task
Parameter mapping - Mapped the User Variable (RecordsInserted) and System Variable( PackageName) to Insert statement as shown below
SQLStatement: INSERT INTO [dbo].[MMMAudit] (
PackageName,NumerofRecords,LoadTime)
(?,?.GETDATE)
Again this all works terrific & populates the dbo.MMMAudit table as shown below BUT I also need to insert the respsctive file name – How do I do that?
AuditID PackageName FileName NumberOfRecords
1 MMM NULL 12
2 MMM NULL 23
3 MMM NULL 14
4 MMM NULL 1
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Mar 11, 2008
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
FLAT FILE SOURCE ------------------------------------ > OLEDB DESTINATION
1.Product.csv Product Table (Different mappings between columns)
2.Depot.csv
...
....
No.of columns also differ in csv files...
P.S. : Dont ask to me to do individual data flow task for each csv files.
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Oct 16, 2007
Hi,
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.
Is there a trick to doing this?
Thanks
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Oct 23, 2007
I need to create a number of flat files, all with the same layout and sourced from the the same table, but with different criteria.
The first set of (three) flat files file is created out of a simple Conditional Split transformation: If Source Table row number > 40,000 route to File 3; if row number > 20,000, route to file 2, otherwise route to file 1. This gives me 20,000 rows in files 1 & 2 and the remainder in file 3.
I also want to create a fourth flat file by joining the Source Table with a sample table and selecting only those rows where the Customer numbers match. I'm currently doing this in two stages: An Execute SQL Task performs the join and inserts the selected rows into a Destination table (identical layout to source table), and then a simple data flow moves the rows from the Destination table into the fourth flat file.
My problem is that the order of the columns in the first three flat files is different from the fourth file. I've tried creating the fourth flat file with a single data flow using a Merge Join transformation which didn't work because the tables aren't sorted in the correct sequence, and I couldn't get an OLE DB Command transformation to work either.
I'm not sure why the column order of the 4th file should be different seeing as how its contents are sourced from the same Source table, but is there a cunning way of setting this up so that the columns end up in the same order?
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Mar 28, 2007
So i've created a flat file destination control and have mapped the columns. At what point can you control which column shows up first?
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Jan 15, 2007
I have a flat file data source and SQL Server destination data flow. Only a subset of columns from the source are mapped to the destination. During execution SSIS returns DTS pipline warnings for every unmapped source column. Is some kind of transformation the only way to get rid of these warnings?
Also this data flow subsequently returns an error: [SQL Server Destination [1293]] Error: An OLE DB error has occurred. Error code: 0x80040E14. An OLE DB record is available. Source: "Microsoft SQL Native Client" Hresult: 0x80040E14 Description: "Could not bulk load because SSIS file mapping object 'GlobalDTSQLIMPORT ' could not be opened. Operating system error code 2(The system cannot find the file specified.). Make sure you are accessing a local server via Windows security."
I'm researching this error, but if anyone is familiar with it your advice would be appreciated. Thanks.
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Nov 6, 2015
I'm loading data from a sql server table into a flat file. The flat file connection manager has the following settings
GENERAL:
Format:Delimited
Text Qualifier:"
Header row delimiter: {CR}{LF}
Header rows to skip : 0
Columns:
Row Delimiter: {CR}{LF}
Column delimiter: comma(,)
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Aug 31, 2015
I will be receiving a CSV daily where columns within the file will change. The column order and number of columns can change daily. I need a way to read in the header from the csv and create a flat file connection that reflects the columns listed in the header.
Is there an easy way to do this using a script task? I have already read the header into a table but I have been unable to create the dynamic file connection.
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Aug 24, 2007
Hi,
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.
Did someone else faced this issue?
Thanks,
AQ
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May 11, 2006
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?
Any inputs will be appreciated.
M.Shah
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Nov 10, 2006
Hi all,
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?
thanx
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Apr 6, 2015
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" ...
Nothing is wrong with package.
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Jul 5, 2007
Hi,
How can I check if my Flat File Destinatino is empty or not?
Im sending it with FTP, but I dont wanna send an empty file.
Any ideas?
Thank you.
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Apr 17, 2008
Hello friends,
I have the following (simplified):
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?
Thanks
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Mar 14, 2007
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?
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Jun 29, 2007
Hi,
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)
Please advise.
Thanks & Regards,
Deepak
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Jun 6, 2007
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?
Thanks!
Jim Work
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May 29, 2006
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?....
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Jul 24, 2006
Hi
I am trying to use a conditional split task so that I can check for specific fields. If the value doesn't exist I am piping the records to a derived field task, where I add an error. I then try to send these records to a flat file destination so that I can keep track of them. However, when I execute the SSIS data flow task I get the following error
[Log Invalid Records [5496]] Warning: The process cannot access the file because it is being used by another process.
This file isn't being used by any other process as far as I can tell, and the only process using it is the SSIS task trying to write to it.
If anyone has any ideas, then I would really really appreciate it
Thanks
Darrell
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Aug 22, 2007
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.
Thank you
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Oct 3, 2007
Hi,
Here is my problem :
I work on a SSIS package with SQL SERVER 2005
I need to extract data from a table and put these data in csv files
But... the flat files name should be dynamic and assigned by a variable ...
Here's an example of my table :
Column header :
Id, Name, Number
1 TOM 22
2 TOTO 44
3 SAM 44
4 RADIO 55
I expect to have 3 csv files :
USER_22.csv
USER_44.csv
USER_55.csv
for example : USER_44.csv contains :
2;TOTO;44
3;SAM;44
if there's 50 different number, i expect 50 files
can i do that in a dataflow ?
thanks for answering
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Apr 21, 2006
I'm looking for a manner to create by code a flat file connection manager and a flat file destination.Greets
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Sep 18, 2006
I'm unable to figure out how to write a column header to my flat file destination. My source is a OLE DB SQL query and I need the column names as a header row in my text file destination. This seems easy but the closet I can find is hardcoding the column header row in the header property. Is this the only option?
Thanks
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Nov 21, 2007
Hi,
I am using a data flow task, and outputting the results from the ole db source adapter to a flat file by calling a function. That part works fine.
However, I want the text fields to be surrounded by double-quotes, like so:
"data1", "data2", "data3"
However, what I'm getting is:
"data1 ","data2 ","data3 "
I tried both specifying a "text qualifier" and when that didn't work, I removed the text qualifier and put quotes around the columns in my select statement. But that didn't work either.
How do I get rid of the spaces?
Thanks
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Feb 21, 2007
Here is the Scenario.
I have a flat file with name "Employee.txt " (Full url: C:Employee.txt) .The File content is like this
Anil,Engineering,1997
Sunil,Sales,1981
Kumar,Inventory,1991
Rajesh,Engineering,1992
(Note: Items are Comma Seperated)
Now, i have a SQL Server database called "EmployeeDB" which has 2 tables "TblEmp1", "TblEmp2".
The Table is like this.
TblEmp1 : Columns
EmpName EmpDept EmpjoinDate
TblEmp2 : Columns
EName EDate Edept
using integration services (SSIS) i need code(vb.net or c#) to Create a dtsx package so that i can push the flat file content to these 2 tables.
And the condition is :
After Executing the package Data loaded in TblEmp1 should be like this
EmpName EmpDept EmpjoinDate
Anil Engineering 1997
Sunil Sales 1981
Kumar Inventory 1991
Rajesh Engineering 1992
(No change in order compared to source)
And Data loaded inTBLEmp2 should be like this
EName EDate Edept
Anil 1997 Engineering
Sunil 1981 Sales
Kumar 1991 Inventory
Rajesh 1992 Engineering
Now, i know that we need to do like this in wizard
1) Create a flat file source component.
2) Create flat file connection and set the properties of flat file (delimeters and other things)
3) Create a Multicast Component.
4) Create a Path between Flat file source and Multicast.
5) Create 2 destination component(each for a table).
6) Create path from multicast to 2 destination components
7) Create a OledbConnection and set table names for 2 destination components..
7) Now,i have to do mapping for destination1.8) Now, i have to do mapping for destination2( this mapping will be different from mapping done for destination1 because iam not inserting the data in the same order in which iam doing for TBLEmp1.
I have done it in wizard.I need to do it through code and i know that its not complicated.Please find the attached file with this mail.i have attached a screen shot of how i have done in wizard.The main problem is Mapping differently for 2 destinations from source.for 1st one we can have a forloop for mapping.but for 2nd one iam confused!!
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May 10, 2007
I have a flat file destination that Im sending data to, from an OLE DB data source. There are two records, but for some reason they are both going on the same line in the output. This is after setting the output to fixed width, from comma delimited.
Help ?
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Jun 5, 2007
Hi All,
I am struck at one point. I am trying to this operation and not able to go further.
1. I have got the dataset to a variable in the control flow.
2. I am looping through the dataset based on a coloumn.
3. Now inside my For each loop i have a dataflow task.
4. In the data flow task i am trying to build a dynamic query using the OLEDB Source and i have selected SQL Command from variable. And the variable build the Query as select * from @othervariable.
Now my question is
Can i send the data of each of the Query resultset to an out put text file using Flat File Connection? If yes pls guide me how? I have tried to create a flat file connection but i am failing how to map the data comming from step 4 dynamically for every query, since every query gives you a different resultset with different coloumns.
Thanks in advance..
Regards,
Dev.
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Jun 20, 2006
I have 3 packages that run consecutively in a main package. Each of these packages read data from a flat file and import it into the Database and then perform some updates and then I use a script component to write the data to a flat file destination and have overwrite flag on the flat file destination to false, however the flat file is not being appended to. All the 3 packages are set to wirte to the same flat file destination each package overwrites the content of the flat file created by the previous packages.
I am wondering why the overwrite = False does not work on the flat file destination. Is there something else that I need to set or is this a defect? Any inputs will be much appreciated.
Thanks,
M.Shah
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Apr 17, 2007
I noticed that The flat file destination that I am using, creates a blank file everytime even if there are no records processed by the data flow.
I just wanted to know if there is any way to stop this. I dont want to see a chunk of blank files on the disk. (I create the files with a timestamp in the file name so every run creates a new file.)
So I want to implement a logic to stop the creation of these blank files in case there are no records to write into it.
Any suggestion would be of great help.
Regards
Saurabh
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