How to fix the Oracle error ORA-30002: SYS_CONNECT_BY_PATH function is not allowed here?

In this post, you’ll learn more about the Oracle ErrorORA-30002: SYS_CONNECT_BY_PATH function is not allowed here with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-30002: SYS_CONNECT_BY_PATH function is not allowed here

Reason for the Error ORA-30002: SYS_CONNECT_BY_PATH function is not allowed here

SYS_CONNECT_BY_PATH function was called at places other than the SELECT list and ORDER BY clause.

How to fix the Error ORA-30002: SYS_CONNECT_BY_PATH function is not allowed here ?

You can fix this error in Oracle by following the below steps

Remove calls to SYS_CONNECT_BY_PATH function at places other than the SELECT list and ORDER BY clause.