Lines I found that might demand conversion to mySQL yet:
Customfields.fnc.php: Line 120
DailySummary_old.php: Lines 96, 153, 158
Students.php (module/Report): Line 40
Modules.php: Line 190
Side.php: Line 217
1. These line could be concat() related and not converted.
2. I have not look to see if they are enclosed in comments / /. If they are, I suggest to purge them...