How much blobspace is free?
-- blobfree.sql
select
name dbspace,
sum(chksize) Size_in_Pages, -- sum of all chuncks size pages
sum(nfree) Num_free_blob_page -- sum of all chunks free pages
from sysdbspaces d, syschunks c
where d.dbsnum = c.dbsnum
and d.is_blobspace = 1
group by 1
order by 1
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