Author: Paul Holden
MDL-67394 dml: improve thrown exception when Oracle can't parse query.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=98292864e8cfebdee9fca7c3eee0c31e4615ced9
http://github.com/moodle/moodle/commit/98292864e8cfebdee9fca7c3eee0c31e4615ced9
+ 3.8 en [dmlparseexception,core_error]