How to fix the Oracle error ORA-19123: FORG0003: fn:zero-or-one() called with a sequence containing more than one item?

In this post, you’ll learn more about the Oracle ErrorORA-19123: FORG0003: fn:zero-or-one() called with a sequence containing more than one item with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-19123: FORG0003: fn:zero-or-one() called with a sequence containing more than one item

Reason for the Error ORA-19123: FORG0003: fn:zero-or-one() called with a sequence containing more than one item

sequence with more than one item was passed into fn:zero-or-one() function

How to fix the Error ORA-19123: FORG0003: fn:zero-or-one() called with a sequence containing more than one item ?

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

correct input argument to fn:zero-or-one() function