Why datafile size not reduced ?

Hi,
I do not see the datafile size reduced after I drop tables in the tablespace of that datafile although the free table space reduced.
Question:
How to reduce the datafile without using alter datafile resize?
James.

I tried the exact proceedure you suggest and get exactly the same effect I mentioned previously. With this recent test all saves were with the save options Layers box checked. Here are the file size results. The only difference in size, as expected, is from the compatibility setting.
Header 1
Both layers visible
No layers visible
Compatibility Max
32.3
21.8
Compatibility Off
21.8
21.8
Paulo

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RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
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Hi,
First get the backup piece size its trying to allocate for file "/home/oracle/DBBACKUP/Oracle10g1/Full_Backup/DB_Backup_201401128366598241"
= 12839996*16384
= 210370494464/1024/1024/1024
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You restricted it to 120GB but actual requirement to allocate backup piece file is ~196GB.
I think you need to change the MAXPIECESIZE and give it a try.
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Hi guys,
I have one tablespace with 6 datafiles. each datafile has 5GB size, but only 2 GB is being used.
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unfortunatelly, when I try to reduce the datafile I get the following message :
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Best Regards
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****Click the White thumb to say thanks****
****Please mark Accept As Solution if it solves your problem****
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Why datafile size not reduced ?

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