Hi @Shua42,

Thank you for the prompt reply.

For managed tables initial load:

Can  I simply run a COPY command::

COPY INTO DELTA_TABLE FROM 'abfss://container@storageAccount.dfs.core.windows.net/base/path'
FILEFORMAT = CSV
FILES = ('f1.csv', 'f2.csv',...) 

or it is better use Auto-Loader?

Some source Oracle tables can have 100M+ rows