TRUNCATE with/without REUSE STORAGE

Hi,
Daily 3 million records are INSERT'd into table BIGTABLE.
At month-end data from this table is INSERT'd into another table and then BIGTABLE is TRUNCATE'd.
The TRUNCATE takes 3-4 hours.
BIGTABLE
Field1 Varchar2
Field2 Date
Field3 Number
I'd like to know if significant time can be saved if TRUNCATE TABLE BIGTABLE REUSE STORAGE is used.
If not, is there a better approach to quickly empty this table?

I'd like to know if significant time can be saved if TRUNCATE TABLE BIGTABLE REUSE STORAGE is used.
Don't be afraid of breaking Oracle by actually TRYING things.
What happened when you tried using REUSE STORAGE?
If you are going to be reloading the table with about the same amount of data then just use REUSE STORAGE. That way Oracle does not have to deallocate all of the extents and then reallocate them again as you INSERT new rows.

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A                                                             TABLE              DATA                            1
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A                                                             TABLE              DATA                            0
A                                                             TABLE              DATA                            1
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Hi ,
Is there any side effects if i ssue
SQL > turncate table Reusing Storage;
the Reusing Storage makes my deleting process faster then normal truncate Or delete right ?
pls tell me in simple why Reusing Storage on truncateing ?
thnx a lot guy's
-Raj

Your best bet is to check out the documentation:
TRUNCATE
*REUSE STORAGE*Specify REUSE STORAGE to retain the space from the deleted rows allocated to the table or cluster. Storage values are not reset to the values when the table or cluster was created. This space can subsequently be used only by new data in the table or cluster resulting from insert or update operations. This clause leaves storage parameters at their current settings.
If you have specified more than one free list for the object you are truncating, then the REUSE STORAGE clause also removes any mapping of free lists to instances and resets the high-water mark to the beginning of the first extent.
Examples
Truncating a Table: Example
The following statement removes all rows from a hypothetical copy of the sample table hr.employees and returns the freed space to the tablespace containing employees:
TRUNCATE TABLE employees_demo;
The preceding statement also removes all data from all indexes on employees and returns the freed space to the tablespaces containing them.
Retaining Free Space After Truncate: Example
The following statement removes all rows from all tables in the personnel cluster, but leaves the freed space allocated to the tables:
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TRUNCATE with/without REUSE STORAGE

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