Try this query, there's a max level setting and a max level achievable by experience setting.
	Code:
	SELECT * FROM rule_values WHERE rule_name IN ("Character:MaxExpLevel", "Character:MaxLevel");
 This will set all zones to whatever rule set you wish for them to have.
	Code:
	UPDATE zone SET ruleset = '#';
 "#" Being the rule set you choose. This shouldn't break anything at all.