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)
Related
Using SSIS, uploading from a text file to SQL Server database table, I need to add the text file name as a column in the results dataset. I am able to create a flat file source, get the data from the file, load into an OLE DB Destination but I am missing the step to add the filename to the dataset.
Basic user using VS, mostly a SQL Production DBA but our developers said to create an SSIS package to upload the daily text file.
In your flat file source, right click on it and go to advanced properties. In the Advanced Properties editor, select the Component Properties tab and then under Custom Properties, there is a FileNameColumnName. Here I used SourceFileName
I attached a data viewer between my flat file source and the next component et voilà!
I have a list of file paths in a table. I need to read these file paths copy these files to a drive which is on present on another server without changing the directory structure. Is this possible ?
You could implement this in SSIS in the following way:
Create a Data Flow Task. In the Data Flow Task, add a Data source component to fetch the filenames from the table. Add a Recordset Destination component and connect the two
Create a For Each container. Connect to the Data Flow Task created in step 1. Change the enumerator type to ADO enumerator
In the For Each task, add a Script Task that takes the file name and uses System.IO.File::Copy method to copy the file to its destination.
I have a Flat File Source that is reading data from a flat file. We have recently added a new column to this flat file.
The flat file data is inserted into a database table. To accommodate the new field in the destination component, I used the ALTER TABLE statement to add the new column to the table. That is the only change I have done.
Should the mapping between flat file and destination component automatically change? I do not see the additional column present in the flat file anywhere within the SSIS package.
How do I configure the additional column in the flat file within SSIS package so that flat file source can pass the data to the destination component?
If you added a new column to the flat file, you need to update the Flat File Connection Manager to reflect the new changes. Flat File Connection Manager will be present under the Connection Manager tab at the bottom of the package.
Sample scenario illustrated using SSIS 2012:
Let's assume that you have a flat file with columns StateCode and StateName.
When you configure the Flat File Connection Manager, you will see these columns configured under Advanced tab page as shown below.
If you modify the flat file to add an additional column, say by adding the new column named CountryCode.
The flat file connection manager will not contain the new column definition. You need to open the Flat File Connection Manager to add the new column or you could delete the Flat File Connection Manager and create a new one with the new flat file column definition.
You need to click New and select appropriate option to insert the column. You cannot move the column positions. So, make sure you select the right option to add the columns. Set the appropriate properties to define the column.
When you modify source or destination schema, it will affect the source and destination components within data flow task. You might see a warning icon on the component as shown below because the component is out of sync with the metadata information of the connection manager that it is associated with.
Double-click the component showing the warning and click OK on the editor to resolve the mapping issue.
Hope that helps.
When you alter the metadata of an underlying component such as a flat file or a database, SSIS doesn't automatically refresh all the available columns. You have to do this manually.
Open the source component's editor and navigate to the "Columns" properties (on the left) and verify all of your external columns from the flat file are there and are selected as output columns.
Repeat this process for the Mappings property window of your destination component. Verify all flat file columns are mapped to the proper destination column.
The simplest way of updating your columns in your flat file source is to reset the columns on your flat file connection.
Open Your flat file connection from connection managers
Select Columns (below General)
Click Reset Columns - this then includes any new columns.
Of course you need to be careful if you have made custom changes to the data types, et cetera.
I am trying to create a SSIS package that will export csv data to an excel file. This package will be called up from C# giving the csv file as input to the package. I am quite new to SSIS and I've been able to produce the expected result with same headers.
I went with the following approach -
Script task - created scripts from the csv headers to create temp table, bulk insert, excel table scripts.
Execute SQL Task - created a temp table in database
Execute SQL Task - Bulk insert csv data into table
Execute SQL Task - Create Excel file
Data Flow Task - OleDB Source to Excel Destination
Execute SQL Task - Drop the temp table created
The challenge I am facing is that my csv may have different headers (both text and number of headers may be different). And I want a single package to serve this purpose.
With the headers being different, the mapping between OleDB Souce to Excel Destination in step 5 above is not working for dynamic headers and is giving unexpected results in the excel output. Is there any way these mappings can be decided at runtime and not at design time.
I don't believe that you can specify the columns or column mappings of a Data Flow at SSIS runtime. You could build the SSIS package on-the-fly, which would allow your C# code to create the column mappings, but the mappings have to be created before the package can run. See Building Packages Programmatically in MSDN for details.
On the other hand, if all you're trying to do is convert a CSV file into an Excel spreadsheet, it would seem logical to me to use the Workbook.SaveAs method of the Office object model.
im using SSIS for SQL Server 2008.
My SSIS package grabs data from sql and exports it to an excel file. But everytime it does this I want new data on the excel.
The problem right now is, If i execute the package more than one time I will have the old data plus the new one on the excel file. I only want the new data displayed.
On the SSIS, on the Control Flow tab I have an Data Flow task. On the Data Flow tab I have an OLEDB source and an Excel Destination in order to put the data on the excel.
So im thinking on deleting the contents from the excel on the SSIS every time before the data gets inserted on the excel.
The excel file has an image, a title and the column names. I want these data to stay.
But I want the data from the rows deleted.
How can I do this?
Thanks...
Ok. What I did was to make a copy of the file and load the data on the new file, and everytime the ssis loads it overwrites the file, so I always have new data..........Thanks!!