Send/receive a huge amount of data with Web services or better .net connector?

Hi,

we have an interface between SQL Server and SAP, which is sending and reading data via files.

Now we wanted to change that to a direct connection via .Net Connector or Web Services.

The data volume, we are talking about, could be easily 8 mio. of records per table.

I have written a c# application, which is using the .net connector to call a bapi and each call is of course running very long.

So i thought to split the data in 10000 line-packages, or something like that.

what do you think about using web services instead?

Please let me know your suggestions!

Thank you very much!

Michael