dbf files

[netbar]

Hi
I have a db with 6 newly added tablespaces with a dbf file associated with each. 3 suffixed with A and the other 3 with B,

The application created these tablespaces through a script I have been assured by the developer. That I can drop the ones suffixed with a B as they are no longer reqd. However when I put a trace on I see that nothing is referencing the B's so they seem safe to drop, although when I do an ls from the command line all the dbf files are modified with the current time
Am I missing something here?

Thanks in advance!

[Calvin_Qiu]

I suppose that the attribute of the datafile is to depend on the OS.

Just take the tablespace offline before droping it.

[davey23uk]

the timestamp changes because Oracle writes to the headers of these files and certain point, e.g log switches

[marist89]

Check to make sure no segments are in those tablespaces (select * from dba_Segments where tablespace = 'foo'), take them offline, drop the tablespace, and then remove the files using an OS command such as rm or del.