On the same database, if I use cx_Oracle 5.2.1 and Oracle Instant client 10.2 with older python 3.5 it was working but I think it was a python bug as said here #166 Is there a way to configure ...

In oracle, if you pass string data to a field of type NUMBER, it will cause oracle to cast, affecting the efficiency of sql execution. Similarly, if you pass TIMESTAMP type data to a field that needs ...