How can I use external tables with directories not on Oracle host?

Oracle 11.2.0.2
We have developers using C# to populate global temporary tables (two one header and detail with 1 to many relationbship between these two tables). The process of using C# was blowing up memory on Windows.
As an alternative I requested them to create two CSV files and I can use sqlldr to load the detail CSV file of over 1 million rows under 15 seconds. It came to my mind that I could use external tables for this purpose with getting read of header and trailer from the CSV files.
The issue I have is that I am not a DBA so I do not have access to OS host that Oracle instance is running. sqlldr is a client side tool, whereas external tables are server side. I was wondering if there is an alternative in 11g to use external tables without creating directories on the OS host that Oracle runs on? Are there other alternatives?
Thanks

905989 wrote:
Oracle 11.2.0.2
We have developers using C# to populate global temporary tables (two one header and detail with 1 to many relationbship between these two tables). The process of using C# was blowing up memory on Windows.
As an alternative I requested them to create two CSV files and I can use sqlldr to load the detail CSV file of over 1 million rows under 15 seconds. It came to my mind that I could use external tables for this purpose with getting read of header and trailer from the CSV files.
The issue I have is that I am not a DBA so I do not have access to OS host that Oracle instance is running. sqlldr is a client side tool, whereas external tables are server side. I was wondering if there is an alternative in 11g to use external tables without creating directories on the OS host that Oracle runs on? Are there other alternatives?
Thanks
no other alternative

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