I had this issue on two different sites on two different occasions and hosts. When creating a database back-up through the Craft CMS admin and importing that SQL file into a new database through PhP MyAdmin I get syntax errors and import stops.
I tried backing up the database on both sites through the hosting company itself, which resulted in one backup working and one also giving the syntax error.
I just updated the sites to Craft 2.6.x.
Any ideas what goes wrong or how I can solve this? Do I need to manually go through the whole SQL file and fix the syntax errors manually? :/
When I open the SQL file in PhPStorm, it looks like the character where the error happens, all the SQL statements coming behind it are escaped wrong, they are shown as normal text. Maybe an encoding issue?