Oracle Export NULL Table workaround

In Oracle 11g, it is found that traditional exp cannot export empty tables

Oracle 11g has a new parameter: deferred_segment_creation, meaning segment delay creation, which is true by default. What does it mean exactly?

If this parameter is set to True, you create a new table T1, and you do not insert data into it, the table will not immediately allocate extent, that is, it does not occupy the data space, only when you insert the data to allocate space. This can save a little space. Workaround if the deferred_segment_creation parameter is set to False, both the empty table and the non-empty table are assigned segment. The next steps refer to:http://inshect.iteye.com/blog/1567504

Oracle Export NULL Table workaround