SVN - delete a revision, or make an older revision the head

Question

I\'m fairly new to SVN and I\'ve never had to revert back to a previous revision, although I can get a copy of a revision from the repository okay. I\'m using TortoiseSVN a

Answer 1

It's a common use for svn merge.
You need to specify a reverse difference (e.g. --revision 303:302 or by an equivalent --change -303):

 svn merge -c -303 http://svn.example.com/repos/calc/trunk