Under what circumstances will a cursor be listed in V$SQL_SHARED_CURSOR but have all "N" for mismatches? I looked around in askTom and google, but trying to find the right keywords is tricky. The documentation states: V$SQL_SHARED_CURSOR explains why a particular child cursor is not shared with existing child cursors. Each column identifies a specific reason why the cursor cannot be shared. Clearly, I was foolish to take that literally. =) I found a couple metalink notes that reference some older bugs, but they are all fixed in our version. Oracle 10.2.0.2 cursor_sharing = EXACT TIA charles schultz oracle dba aits - adsd university of illinois