How to fix the Oracle error DRG-12605: datatype of column number in COLUMNS list is not supported?

In this post, you’ll learn more about the Oracle ErrorDRG-12605: datatype of column number in COLUMNS list is not supported with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

DRG-12605: datatype of column number in COLUMNS list is not supported

Reason for the Error DRG-12605: datatype of column number in COLUMNS list is not supported

Cause: one or more of the columns in the column list of the multi datastore are of a type which the multi datastore is unable to process

How to fix the Error DRG-12605: datatype of column number in COLUMNS list is not supported ?

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

Action: change the column list of the multi datastore to contain only supported types. PL/SQL functions can be used in the comlumn list to convert unsupported types to supported types.