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.
Related
I'm trying to create a SSIS package which will copy data from Table-A on Server-A into Table-B on Server-B. And to avoid duplicates, I want to update the data of the records which already exist in Table-B if there are any changes to the data. Please let me know what would be the best approach for this.
Thank You
You should use the SSIS Sort Transformation to remove duplicate records
Drag Sort Transformation and Connect Flat File Source to it. Double-Click on Sort Transformation and Choose the columns to sort. Also Check the Checkbox : Remove rows with duplicate sort values and then click OK
The SSIS Sort Transformation task is useful when you need to sort data into a certain sort order.
Create regular data flow with 2 components - OLE DB Source and OLE DB Destination (I assume you are using MS SQL Server, in general, use whatever components your company uses to connect to the DB).
In case of 2 DBs, create 2 connection managers, each pointing to its DB. Point OLE DB Source to first connection manager configured to point to source of data, and OLE DB Destination to second connection manager configured to point to destination DB.
Now point OLE DB Source to the source table in source DB, leave all the fields intact. Connect source and destination components with green arrow originally going out of source component. Now point OLE DB Destination to the destination table in target DB. Double-click destination, go to mappings and make sure they are correct (SSIS tries to map automatically using strick name matching), otherwise (in case names are different) connect source and destination fields manually. That's it, you just don't provide mappings for the fields which cannot be accommodated by destination table.
Alternatively, you can leave out the columns you don't need at source component - double-click it, go to Columns and uncheck columns you don't need.
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 have requirement where I need to convert text file to Excel Sheet using SSDT.
I have idea how to do like I
Step 1. have to upload data to sql server any table
and then Step 2. from Sql Server to Excel Spread sheet.
But I would like to do it in only one step that is Convert Directly from Text file to Excel Sheet without sending it to the table in Sql server using SSDT. Is there any way that I could do in one Step. Thank you in advance.
If i am understanding your question correctly, it is possible to use the import data wizard in SSMS to convert a text file to an excel file. You can save the wizard as an SSIS package also if you need to do the conversion programatically.
right click on any database in your server, hover over 'tasks' and select 'import data...'
in 'data source' drop down, select 'flat file source'. click next.
browse to the file you want to import. you can preview your flat file from here to make sure its rows and columns have been detected correctly. click next.
in 'destination' drop down, select 'microsoft excel'. browse to the destination folder and name your file. click next.
here you can rename columns and preview the end result. click next.
map your data types and determine if you want the package to fail if you encounter an error. click next.
here you can choose to save as an SSIS package or just run one time. you can now click through the rest depending on your choice to finish the sequence.
This is a very brief overview. for more detailed information, you can go here: https://learn.microsoft.com/en-us/sql/integration-services/import-export-data/import-and-export-data-with-the-sql-server-import-and-export-wizard?view=sql-server-2017
I hope this helps.
I have 4 different text files each file with different name and different column in it place in one folder. I want these 4 four files to be inserted or updated into 4 different existing tables. So How to read read these 4 files dynamically and insert them into their respective table dynamically in SSIS.
Well, you need to use Data Flow Task to move data from a Flat File Source to a Table Destination (OLEDB Destination perhaps). Are the columns in your file delimited in any way? For example, with any of these: (;),(|) or something like that? if it is, you can create a FlatFileConnectionManager and set that to split the columns. If not, you might need to use the FixedWidth option to separate your columns. To use the OLEDB Destination, you will need to create a OLEDB connectionManager to point to the table in your database. I could help you more if I had more information about the files you want to read the data from.
EDIT
Well you said at the start you were working with 4 files and 4 tables, so you can create 4 Flat Destination sourcers with 4 OLEDB destinations aswell (1 of each for each flat file). If I understood you correctly, these 4 files can or cannot exist yet. So if you know the names that the files will get, change the Package Property DelayValidation to true, and then create a connection with a sample text file. You do this so the File path gets saved. The tables, in my opinion DO need to exist. Now, when you said:
i want to load all the text files into each different existing table whenever there is files inside the folder.
The only way I know you can do something similar, is to schedule the execution of your package at a certain time with SQL Server Agent Job. Please let me know if this was what you were looking for.
I’m making an SSIS package to create a CSV file using OLE DB Source and Flat File Destination.
When I get the file it doesn't contain the headers but they are clearly defined in the destination.
I've tried all the options related to this:
headers rows to skip -1,
column names in the first data row,
column delimiter,
data rows to skip
and even resetting the columns.
Please check the option in the Flat file connection manager as
Just in case this doesn't work then the setting are not being carried over to your config files. In such cases there are two workarounds:
Editing the .dtconfig to edit "firstcolumnhasnames" to 1 adds the column names without needing to delete the connection from the package.
delete the destination connection, and recreate from scratch.