How to fix the Oracle error SQL*Loader-00418: Bad datafile datatype for column string?

In this post, you’ll learn more about the Oracle ErrorSQL*Loader-00418: Bad datafile datatype for column string with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

SQL*Loader-00418: Bad datafile datatype for column string

Reason for the Error SQL*Loader-00418: Bad datafile datatype for column string

The datatype in the data file specified for the column cannot be used to load the column. This message is often displayed for columns that need to be loaded with special features. For example, BFILE columns can only be loaded via the BFILE directive in the control file; same goes for REF fields. in the SQL*Loader control file. Similarly, REF columns can only be loaded with theREF datatype in the SQL*Loader control file.

How to fix the Error SQL*Loader-00418: Bad datafile datatype for column string ?

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

Determine the datatype of the column in the database check the documentation for the correct mechanisms to use to load columns of that type.