Has anyone ever moved a db 'into' a different db after changing its "wp_" prefix to something else.
Main DB - db1 is with wp_
SubDom DB - db2 is with wp_
SubDom DB - db2 is now with wpsub_
Now, need to merge db2's stuff into db1.
PS. Doing all this to achieve common user table between main and sub domain, and sub domain already have 300+ posts, so need to be cautious.