How to fix the Oracle error ORA-26721: enqueue of the LCR not allowed?

In this post, you’ll learn more about the Oracle ErrorORA-26721: enqueue of the LCR not allowed with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-26721: enqueue of the LCR not allowed

Reason for the Error ORA-26721: enqueue of the LCR not allowed

An apply process attempted to enqueue an LCR with a LONG column. This is not supported.

How to fix the Error ORA-26721: enqueue of the LCR not allowed ?

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

Modify rules or unset the enqueue destination to prevent LCRs with LONG columns from being enqueued by the apply process.

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