How do I display the full content of LOB column in Oracle SQL*Plus?

Question

When I try to display the contents of a LOB (large object) column in SQL*Plus, it is truncated. How do I display the whole thing?

Answer 1

SQL> set long 30000
SQL> show long
long 30000

Answer 2

You may also need:

SQL> set longchunksize 30000

Otherwise the LOB/CLOB will wrap.