How to fix the Oracle error ORA-55307: invalid value type for lexical value: string?

In this post, you’ll learn more about the Oracle ErrorORA-55307: invalid value type for lexical value: string with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-55307: invalid value type for lexical value: string

Reason for the Error ORA-55307: invalid value type for lexical value: string

The value type of this lexical value was invalid.

How to fix the Error ORA-55307: invalid value type for lexical value: string ?

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

Make sure that the lexical value format is correct. If this error occurs during bulk load from a staging table, then this may be an internal error. Contact Oracle Support Services.