SQL Loader: Is it possible to set a variable?

Hallo All,
I am loading data with SQL Loader and find that I can set particular fields to particular values using 'CONSTANT'. That's great. However, I am loading multiple files into the same format and so would like to 'label' each load. This would be done by setting a variable before each load and then using this to write the load month (e.g. '200901') into the column 'SOURCE_FILE' in the destination table.
I imagine the syntax would look something like this ...
LOAD DATA
strSource = '200809'
INFILE 'source_data_200809.csv'
strSource = '200810'
INFILE 'source_data_200810.csv'
strSource = '200811'
INFILE 'source_data_200811.csv'
APPEND
INTO TABLE DESTINATION_TABLE
FIELDS TERMINATED BY ";" OPTIONALLY ENCLOSED BY '"'
TRAILING NULLCOLS
(CUSTNO char,
BARCODE char,
NAME char,
SOURCE_FILE char :strSource)
Then, for each load I would reference the variable strSource and write the appropriate month into a column/field in the table.
I have been googling and trawling through the documentation but I cannot seem to find a way to do this. Is it possible? Or maybe there is another method/way/trick to do this? Or maybe it is just a question of syntax?
Any ideas?
Regards,
Alan Searle

Hi Kamran,
I took a look at that thread and there were some tips including details about sending parameters through the command line ...
SQLLDR CONTROL=controlfile.ctl, DATA=yourdatafile.csv
But here I would need to also be able to send a parameter that I could pick up and use within SQL Loader. This might be ...
SQLLDR CONTROL=controlfile.ctl, DATA=source_data_200809.csv VAR=200809
... here I would write the value '200809' to a column in the table being loaded (so that I could track back to the source of the load).
I checked the documentation but it doesn't seem to be possible to send a variable in this way.
Any other tips?
Regards,
Alan

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