Oracle Error IMP-00020: long column too large for column buffer size (number)

Oracle Error Message

IMP-00020: long column too large for column buffer size (number)

Reason for the Error

The column buffer is too small. This usually occurs when importing LONG data.

Solution

Increase the insert buffer size 10,000 bytes at a time (for example). Use this step-by-step approach because a buffer size that is too large may cause a similar problem.