Similar to a 2008 bug that was closed, I get an error trying to export to MySQL with 2.6 version. The error message reads:
Could not export to SQL database for the following reason:
User does not have sufficient privileges.
(You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'ignore VARCHAR(3) DEFAULT NULL, series VARCHAR(3) DEFAULT NULL, address VARCH' at line 4.
I added a few non-standard Bibtex fields to my bibtex file, which jabref processes fine, but I suppose the export fails since a line gets too long? I suppose to export with single lines per field definition in the SQL script any but the worst length field identifier would work? Great program, a fix would help me a lot.