In this post, you’ll learn more about the Oracle ErrorORA-06404: NETCMN: invalid login (connect) string with the details on why you receive this error and the possible solution to fix it.
Oracle Error Description
ORA-06404: NETCMN: invalid login (connect) string
Reason for the Error ORA-06404: NETCMN: invalid login (connect) string
Syntax error in login string.
How to fix the Error ORA-06404: NETCMN: invalid login (connect) string ?
You can fix this error in Oracle by following the below steps
Correct string and re-submit.