I have already created elements on a data source. But now the data source path is changed. I want to map the elements to a new data source path
Just edit the data source connection string to the new server.
Related
I want to copy the data to SQL from csv file in ADLS gen2. In Sql table, there is a column called created on. But csv file doesn't have that column. How can I copy the current date in created on along with other columns?
You can add a column in source settings of copy activity and give the dynamic value as #utcnow()
or
Add a derived column transformation in dataflow and add the new column and give the data as currentUTC()
Method:1 [Using Copy Activity]
Copy activity is taken and in source settings, source dataset is taken.
Then Additional columns +New is clicked. Created_on is given in Name and #utcnow() is given as dynamic content.
After adding new column, preview data of source dataset looks as in below image.
After this, file can be copied to sink.
Method:2 [Using Dataflow]
Source data is taken as in below image in dataflow.
Derived column transformation is added and +ADD is selected in columns. currentUTC() is given in the expression.
By this way, you can add the column dynamically whenever the data is copied to SQL.
I have a Data Flow which reads multiple CSV files from Azure Data Lake and writes them into Azure Blob Storage as a single file. I need to get the url of the file written to the blob.
This data flow is a part of a pipeline and I need to give the Blob url as the output of the pipeline. Is there any way achieve this? Thanks in advance for your help.
To create a new column name in your data stream that is the source
file name and path utilize "Column to store file name" field under
Source transformation --> Source Options.
Source Options settings
Data Preview
You can also have a parameter inside your data flow to hold file name or file path and add that parameter value as new column using derived column transformation.
Please Note: You need supply value in to your data flow parameter from data flow activity.
I have a data source which is something like
select
patient_id
from patient_table
the destination is a CSV file.
Now I want to add patient_name to both the source and the destination.
I go to the source and I change the query to
select
patient_id,
patient_name
from patient_table
After I add this when I click on columns the patient_name column is not there.
The same thing happens for my destination. I have a flat file destination with the patient_id column so I add the patient_name column to the actual .csv file and that column is not reflected on the flat file connection manager.
The only way that I've been able to get these new columns to show up is to delete the data flow task, connection managers, sources and destinations and to create everything new from scratch.
Is there any other way to do this?
I just created a simple data flow with an OLE DB source and a flat file destination. After adding a second column to the OLE DB source I double clicked my flat file destination which opened the Flat File Destination Editor. Clicking UPDATE added the 2nd column to the flat file connection.
Are you using the latest tooling available to modify SSIS packages?
I don't have an SSDT installation handy right now, so I'll do the best I can without screenshots (and working from memory).
In the Source object, after you add the column to the text of your query, click on Columns, which you already know. Your new column doesn't show up in the list at the bottom yet, which you also know. Up in the top of that window, there's a grid representation of the result set from the query. Find your new column in that grid and check the box to tell the connector you want that column to enter the data flow.
Now go to the connection manager for the .csv file. Add the new column there.
Once it's in the connection manager, now you should be able to map it in the destination object.
There's a possibility that you'll have to click on the arrow or arrows in your data flow task and map the new column in those, too, but it doesn't always happen like that. I haven't taken the time to figure out why that's necessary sometimes and not others, but you'll know right away because the arrows will have red Xs on them.
And that should get you there.
Hope you can help me.
I am looking to retrieve multiple file-names into a column from files I wish to upload onto SQL in a custom column on SSIS.
I am aware of using Advanced Editor on the Flat File Source in Component Properties > FileNameColumnName. However, I am not sure how to make sure it picks up all the file names or what to enter in this field?
I can upload the files and all the data it holds but not the filename into a column.
I am designing a SSIS package which imports data from one data base to other database. In reality I need to import data from multiple data source to one destination database. One way to do, that I know is to use package configuration for all data sources (connection strings) and run multiple instances of the same package. But I want something like, I should provide as many connection strings as I need at a point of time in my config file and my package should connect to each database reading data source connection strings from configuration and imports to my destination table.
Is this possible in any way?
If your Data Flow Task is going to be the same for every data source (e.g. using same table from each data source), you could do something like this:
Create an object variable, say ConnStrList. This will hold the list of connection strings.
In a script task, loop through your config file and add each connection string to ConnStrList.
Add a ForEach loop container, set it's data source to ConnStrList. Create a string variable, say ConnStr. This will hold an individual connection string. Set ConnStr as the iteration variable of the foreach loop.
Add your Data Flow Task inside the ForEach loop container.
Create an OLEDB connection manager for your OLEDB source. Go to Properties -> Expressions and for ConnectionString, assign the variable ConnStr.
If the DFT is going to be different for each scenario, you might want to have separate data flows for each source.
Please let me know if this answers your question, or if I am getting the scenario wrong.