SAM-2088 oracle and mysql conversion added


git-svn-id: https://source.sakaiproject.org/svn/reference/trunk@125707 66ffb92e-73f9-0310-93c1-f5514f145a0a
Reintegrate trunk changes into branch.

git-svn-id: https://source.sakaiproject.org/svn/reference/branches/SAK-23349@125784 66ffb92e-73f9-0310-93c1-f5514f145a0a