Hi guys!
I found a SQL query on the marvelous Tobias SQL page which is puzzling me. I 
always had a hard time relating archive sizes to archives. The archives table 
does not contain file sizes (at least not in version 6). There seem to be a 
table called archive_objects however which you can query for bfsize, but the 
strange thing is that is can only be used in a joined query. For instance:

Querying only this table returns the error that the archive_objecs table does 
not exist:

select node_name, bfsize from archive_objects

ANR2939E The reference 'select node_name , bfsize from archive_objects ' 
contains an unknown SQL table name.

                                        |
         ...............................V...............
         select node_name , bfsize from archive_objects

ANS8001I Return code 28.

While the SQL statement:
select a.node_name, ao.bfsize from archives a, archive_objects ao
Does return all archive files along with their size (be careful the list can be 
quite large).
Does anybody know how this archive_objects (and backup_objects) tables work? 
How do I find all existing columns in archive_objects?
Thanks in advance for your help!
Kind regards,
Eric van Loon
Air France/KLM Storage Engineering
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