Datafile Deleted but Data Accessible

Hi
My database is in archive log mode, 10.2.0.2.
I took a hot RMAN backup and then created a
tablespace with one datafile and created a user
having this new tablespace as a default tablespace.
Created two tables for this user.
Then I deleted the datafile of this tablespace using
OS command but the data is the datafile is still
accessible. Isn't it strange? I thought the database
will crash or will at least not access the data on
this datafile.
Can someone please tell me how this data is being
accessed?
how did you access the data? i think it takes some time to register in the control file that a daatfile has been deleted then latre if u query from that tablepsace will result in error.you can access once the deletion info is registered in controlfile.
correct me if i am wrong
Also if I do shutdown immediate I get the following:
SQL> shutdown immediate;
ORA-01116: error in opening database file 9
ORA-01110: data file 9:
'/oracle/oradata/gptest/surrey.dbf'
ORA-27041: unable to open file
IBM AIX RISC System/6000 Error: 2: No such file or
directory
Additional information: 3
Thanks in Advance
the above surrey.dbf is the one you have deleted now you need to restore and recover the datafile inturn the database.
cheers
maran

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thanks , aman ,lenord and you all
looks like i'm the sinful :)
to clear it up ... it's not me who did it , one of our guys , same thing ,hum ~~
he deleted the backup , cause it's full and auto backup is not ongoing , and he's trying to make things right
he deleted the datafile , cause i told him to rename the file to another space , coz vgdb is full , screw up that too ..
yeah , it'a real production database ~~ , so ,if anybody learn somethings on this , credit on me , :)
the version is 9.2.0.4 , but gonna move to 10g soonor or later , so put it there , to see if in 10g , we can do better ..
tablespace created like five years ago , so , apply all archive since would be crazy ~
this database have 500 Tablespaces , and thoudsands of tables , and the one lost is a important one ,
but data in it , we can bear loss
what i do , is offline drop the tablespace , and import the tablespace without data from other production DB ...
only it didn't work out so well with object grant , and application still not inserting ...
why i post it here , is i wanna learn better ways in this kind of situations ...
i thought my way is not good enough
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Edited by: zs_hzh on Sep 15, 2008 10:12 PM

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>
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