DBD::Oracle says:
There are also legacy LONG types (LONG, LONG RAW, VARCHAR2) which are presently deprecated by Oracle but are still in use. These LONG types do not utilize a 'LOB Locator' and also are more limited in functionality than CLOB or BLOB fields.
I misread your question and assumed you meant lobs and not the old deprecated long type. I don't use longs so I cannot say but the comment above would suggest there is not a lob locator.
I guess you need to read this.
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"There are also legacy LONG types (LONG, LONG RAW, VARCHAR2)"
I think that this is a mistake in the DBD::Oracle docs (unless I am missing something in the Oracle documentation).
VARCHAR is deprecated but VARCHAR2 is not.
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