Task: I'm trying to iterate through excel files using foreachloop editor container.
I was successful until i had different extensions meaning it's works as long as file extension is xls or xlsx but not both together.
Problem: I get errors when i try to iterate files with extensions xls and xlsx. Cannot acquire connection to connectionmanager.
For instance: I have abc.xls and agh.xlsx in a folder and i have trouble iterating thru files using Foreachloop editor.I think i understand & know why it's happening but can i write a script to do it or how to complete this task successfully.
Any ideas..
You will need to add 2 For Each Loop containers to iterate through files. the 1st FLC will process only .xls (or .xlsx) and the second FLC would process only .xlsx (or .xls). Other than that, I dont think writing a script would be of any help. But I could be wrong.
Presuming all xls file have the same format and all xlsx files have the same format...
What you also could do is using one FOREACH loop to loop through all Excel files... then add a dummy task (empty Script Task or Sequence Container) and connect it to two Data Flow Tasks. One for XLS and one for XLSX. Then add expressions on the lines between the dummy tasks and data flow tasks where you check the extensions. Something like:
LOWER(RIGHT(#[User::Filepath],4))==".xls"
LOWER(RIGHT(#[User::Filepath],4))=="xlsx"
Related
I have an SSIS package that creates a text flat file from data in a database table. Everything works perfect except that I need to capture the dynamic filename for use in another process. I've searched everywhere but haven't found anything close to what I need other than using a ForEach Loop to loop through the directory the file will be stored in. I can't do that because there's too many things that could go wrong. I'm currently creating the dynamic filename through variables and it contains a datetime stamp.
Is there a way that I can capture the file name when the file is created in the data flow task so I can use it in another process within the control flow task?
Thank you in advance!
John
Using Microsoft Visual Studio Community 2015.
Goal of project
-create "*\temp\email" directory
-start program to extract all emails that include xls attachments to the previously created folder
-use for each loop to cycle through each file in the folder, process, and shift to sql table.
The problem I am running into is caused by either a blank excel document (which is occasionally sent from a remote location) or some of the original xls reports only contain 5 columns instead of 6 that I have mapped now. Is there any way to separate files that include the correct columns from those that do not match?
** as Long as these two problems do not exist I can run the ssis package and everything runs without issue.
Control flow;
File System Task (creates directory --->Execute Process Task (xls extraction)-->ForEach Loop(Data flow Task "email2Sql")
Data Flow;
Excel Source (uses expression ExcelFilePath,#user:filepath) delay validation ==true
(columns are initially set to f1-f6 and are mapped to for ex. a,b,c,d,e,f. The Older files that get mixed in only include a,b,c,d,e.) This is where I want to be able to separate the xls files
Conditional Transformation split (column names are not in row 1, this helps remove "null" values)
Ole Db destination (sql table)
Sorry for the amount of reading, but for the first post I tried to include anything that I thought may be relevant.
There are some tools out there which would allow you to open the excel doc and read it. However, I think the simplest thing to do would be to use SSIS out of the box:
1 - add a file system task after the data flow which reads the file.
2 - Make the precedence constraint from the data flow to the file system task "failure." This will cause that to only fire when the data flow task fails.
3 - set the file task to move the "bad" files to another folder
This will allow you to loop through all the files and move the failed ones. Ultimately, the package will end in failure. If you don't want that behavior you can change the ForceExecutionResult property to be success. However, it might be good to know that there were problems with some files so that they can be addressed.
m
Daily SQL Job will start at 12.00. It will run a package that fetch a CSV file from a folder(using for each loop container in ssis).
Suppose if there no files in that specific folder. You should not run the package until the csv files load into that folder? How we can do this using SSIS .
Please help me on this.
Have the job run on a schedule. If there are no files in the folder, it won't do anything. The next time it runs, if the files are there, it will process them.
Using a script task, you can check if the file exists in that location with that file extension and then build an expression in the precedence constraint editor. Set the evaluation operation to expression and constraint value to success. Something like the one shown in the screenshot below.
I have a situation whereby I want to process files in an SSIS package but only files that are new and only files that match specific filename patterns.
Is it possible to use WMI to achieve this task by somehow looping through the resulset of a WMI query?
The WMI Data Reader task seems to be the closest contender but it can only write its results to a file (rather than to say a database table or in-memory recordset).
Has anyone had success doing this?
If you want to use the WMI Data Reader Task then the easiest solution would be to save the result to a file. Add a Data Flow Task that reads the file and inserts the data into the database.
However, another solution would be something like:
Add a Foreach Loop with an Foreach File Enumerator, you can use an expression for the filename patterns.
Process the files in a Data Flow Task
If you are allowed to move the files then use a File System Task to move the file to a different folder so it won't be processed again.
If you can't move the files then you need some other way to determine if the file is already processed. If you only need to watch for new files and not modified ones then you could keep a record of which file has been processed in the database, or add a script task to check the modified date of the file and compare it to the last processed date from the database.
I have created a package to fetch data from two SQL Server tables, and using merge join combined this data, then stored the result into an Excel destination.
The first time it works fine. The second time it stores repeated data in the Excel file.
How do I overwrite the Excel file rows?
Yes, Possible!
Here is the solution:
First go to your Excel Destination Click to New Button next to Name of Excel Sheet, copy the DML query inside.
Then put an Execute SQL Task into your Control Flow and connect it to your data flow that contains Excel destination. Set the Connection Type To Excel, Set the Connection to your Excel Destination's Excel Connection Manager, go to SQL Statement and type :
Drop TABLE `put the name of the sheet in the excel query you just copied`
Go
finally paste the query after it.
It is all you need to do to solve the problem.
You can refer to this link for a complete info:
http://dwhanalytics.wordpress.com/2011/04/07/ssis-dynamically-generate-excel-tablesheet/
Yes, Possible!
Using SSIS we can solve this problem:
first of all, crate an Excel format file (Structure Format using Excel Connection Manager) at one location as a template file. Then create a copy of that excel file using FILE SYSTEM TASK in another location and make sure that SET OverwriteDestination=True. Finally, using a data flow task, insert data into the new copied file. whenever we want insert data, it will create a copy of the template excel file and then load the data.
Unfortunately the Excel connection manager does not have a setting that allows overwriting the data. You'll need to set up some file manipulation using the File System Task in the Control Flow.
There are several possibilities, here's one of them. You can create a template file (which just contains the sheet with the header) and prior to the Data Flow Transformation a File System Task copies it over the previously exported file.
The File System Task (MSDN)
For Excel it will append data. There is no such option available for overwriting data.
You have to delete and recreate the file through the File System task.
Using a CSV file with flat-file connection manager would serve your purpose of overwriting.
The best solution for me was using File System Tasks to delete and recreate the Excel files from a template.
What I was trying to do was to send every employee a report with Excel attachment in the same format but different data. In a foreach container for each employee, I get the required data, create an Excel file and send a mail with the Excel file attached.
I first:
Create an Excel template (manually)
Create an original Excel file to be used (manually)
Then in the foreach container:
Delete the original file (SSIS File System Task )
Copy the template as the original file (SSIS File System Task)
Get the data from SQL Server and write them to the original file (SSIS Data Flow Task)
Send the mail (SSIS -> SQL Stored Procedure)