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=42fcf7d5dab492113762c5533f30a8ffd1ce3f3e
http://github.com/moodle/moodle/commit/42fcf7d5dab492113762c5533f30a8ffd1ce3f3e
+ 4.0 en [dmlparseexception,core_error]