[Err] 1064 - You have an error in your SQL syntax;

Question

[Err] 1064 - 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 'USING BTREE,
KEY fbutton (BUTTON_ID),
CONSTRAINT frole FOREIGN KEY (' at line 6
[Err] INSERT INTO sys_role VALUES

Answer 1

 要看你完整的sql   

'USING BTREE,
  KEY `fbutton` (`BUTTON_ID`),
  CONSTRAINT `frole` FOREIGN KEY ('

是不是外键不存在