How do I tell how much hard disk space an archive will take up?

Question

Hi we are trying to determine whether or not we have the capacity to run an archive export on one of our WebCenter spaces content folder (the root folder and ALL contents). Before we begin we'd like to be able to tell how much disk space it will take up.
Thanks,
S

Answer 1

The table Documents contains a field called dFileSize, which contains the size of file in bytes.
Now, you can use this field to calculate the size of all files contained in a folder (or its subfolders), or contained in an archiving batch.
I think easier is the former. Actually, I have done something similar - created a component that checks so that files in a folder do not exceed the given quota. It already contains hierarchical queries that could be re-designed (simplified) to your needs. For instance, an occupied quota of a folder is
WITH tree AS (select dCollectionId, case when level>1 then dCollectionQuota end as effective_quota from collections start with dCollectionId = ? connect by dParentCollectionId = prior dCollectionId and (prior dCollectionQuota IS NULL or level = 2)) SELECT SUM(NVL(t.effective_quota, NVL(docs.dFileSize, 0))) as TOTALDOCUMENTSIZE from tree t LEFT OUTER JOIN DOCMETA meta ON t.dCollectionId = meta.xCollectionId and t.effective_quota IS NULL LEFT OUTER JOIN DOCUMENTS docs ON meta.dId = docs.dId and docs.dIsPrimary = 1 LEFT OUTER JOIN REVISIONS rev ON rev.dId = docs.dId(in your case, you don't need t.effective_quota, nor logic bound to dCollectionQuota as these values do not exist in your system)
P.S. more info about hierarchical queries, see here
http://docs.oracle.com/cd/E11882_01/server.112/e10592/queries003.htm#i2053935
http://docs.oracle.com/cd/E11882_01/server.112/e10592/statements_10002.htm#i2077142