I'm trying to add rows to an existing file in Talend Open Studio that already contains rows. The problem is that everytime I try to add new Rows, the job deletes the content of the csv files to replace it with the new rows.
Ex :
1st load : 500 lines in source --> 500 new lines in my .csv file. result : 500 lines in the target file.
2nd load : 30 lines in source --> 30 new lines in my .csv file. result : 30 lines in the target file, but it is supposed to be at the end of the file, and to have 530 lines.
Do you know how to do it ? Is there a way to specify the fact that I don't want to overwrite the target file ?
Am I supposed to get the data from the csv file, merge it with the new rows with a tUnite and put it in the destination file again ? (this way, the data would be overwritten with the data it contained).
in tFileOutput* component have setting called Append. if you check this option in component it will append to existing file and not overwrite it.
Related
I have created a new screen where I'm uploading Amazon orders from a CSV file. The original CSV file downloaded needs to have the first few lines removed to have the column headings at the top.
Before
After
I have a data field on the screen called date/time, but when I upload the CSV the mapping finds some sort of hidden characters in the file so the mapping doesn't automatically map the field.
I have tried changing the encoding while uploading the file, as well as changing the display name to include the ??? and double quotes like the image below, but the field doesn't auto-map.
Is there someway to get the field to auto-map on the file upload so the user doesn't have to map the field manually?
Thanks,
Kurt Bauer
I am new to eggplant functional. Didn't find any reference to update a csv using eggplant functional.
Reference: http://docs.testplant.com/ePF/using/epf-accessing-data-cell-by-name.htm
You can read files in and out like so, and editing a CSV is the same as other text files.
To read a file into a variable:
put file "/etc/passwd" into passwordInfo
To write a variable to a file:
put "0,0,0,0" into file "/tmp/testing/counters"
What I would do is read in your CSV and copy to a new variable, then output it. There's pretty useful syntax for moving to a specific line in your file. For example, if you wanted to increment the second column of the first row of your file "counters", you could use:
add 1 to item 2 of line 1 of file "/tmp/testing/counters"
All of this and more is in "File and Folder Interaction" provided on the Eggplant website.
Task : Need to export 1.1 million records to a csv file
I loaded it via SSIS Dataflow.
As you can see there are 1,100,800 rows that is loaded from a table(Source) to the FlatFile location which is a CSV file.
My FlatFile destination Source filename is Test.csv
Now when i open the csv file i get the error
"file not loaded completely"
Now when i see the record at the very end of my csv file .Sorry cannot attache the csv file due to data integrity.
So i only see record till 1048578 but the row i loaded was 1,100880 so there are some missing rows and i cannot add them manually as well . See the end of the csv it does not let me type to the next row.
Any idea why?
As for workaround i loaded in to seperate csv file 1 million in 1 csv and rest in others.
But i really wanna know why it is doing this.
Thank you in advance for looking at this.
It's Excel's fault. It only supports 1,048,576 rows.
https://support.office.com/en-us/article/excel-specifications-and-limits-1672b34d-7043-467e-8e27-269d656771c3
The error you're getting is because you're trying to open a .csv with more than the acceptable number of rows. Try opening the file in a different app, like Notepad++.
I want to know if it is possible to export each row from ODS file to .csv files.
For example :
column1 column2
row1 name info for the row1
row2 name info for the row2 ... and so on.
I want the exported filename to be the names from column1 and the content to be the info from column2.
Is that possible ?
To get Calc to save as .csv, each set of information needs to be on a separate sheet, not just in separate rows. I do not think it would be convenient to do this, and in any case, that will not automatically save with the correct file names.
However what you are asking can be done by creating a Python or Java macro, or perhaps JavaScript. The macro would need to read each row, and then open a file for writing with the name from column 1.
It is possible with Basic as well, but file handling in Basic is awkward.
For a good macro reference, see Andrew Pitonyak's macro document.
Prepare sheet with 2 columns:
file name
content of the file
Concatenate string "echo>" with file name in the first column
Save this sheet in .CSV format, bat with .BAT extension. In Windows it makes executable file.
Execute this batch file in terminal (command line interface). You should first change to proper directory.
DONE
I'm trying to manipulate a .csv file to remove text at the beginning of the file before the data starts. The file contains a fixed text string followed by a date field, which will change from file to file and then another fixed text string.
eg.
"Text1"
"------"
"date"
"Text2"
"data column1","data column2" etc
How can I remove this text so i can then use SSIS to import the data to the SQL database?
If I understand the question correctly you want to skip the first line of the file. When you set up the Flat file connection there is an option in the format section of the properties Header rows to skip:. You can set this to the number of rows you need to skip and the file should import. If you have a an actual header row you will need to skip that as well and then map the columns manually.
Within the SSIS import configuration, is there not an option to tell SSIS that the "first row has headers," or something roughly similar? That's what I've used when importing through SSIS, at least.