I do not know about ESQL-C but I will sure find out.
As for the default isolation level, it is definitely 1.
1> select @@isolation
2> go
-----------
1
(1 row affected)
I will monitor the processes when they will be next lauched to see if the spid is running at the expected isolation level.
I thank you verry much for your time and expertise Jong-un. I will keep near the commands you provided.
Best regards