How to fix the Oracle error ORA-29977: Unsupported column type for query registration in guaranteed mode?

In this post, you’ll learn more about the Oracle ErrorORA-29977: Unsupported column type for query registration in guaranteed mode with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-29977: Unsupported column type for query registration in guaranteed mode

Reason for the Error ORA-29977: Unsupported column type for query registration in guaranteed mode

An attempt was made to register a query with an unsupported column type or too many columns.

How to fix the Error ORA-29977: Unsupported column type for query registration in guaranteed mode ?

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

Examine all column datatypes in the expression and refer to the documentation for supported query types. The application can reattempt the query registration in best effort mode.