mysql - How to I correct this? -


i trying mysql query work, not.

create table if not exists `gospel_library`.`catalog_book_files` (   `id` int not null auto_increment,   `book_id` int not null,   `book_order` int not null default 0,   `added` datetime not null,   `modified` datetime not null,   `version` int not null default 1,   `downloads` int not null default 0,   `file` varchar(100) not null,   `uri` varchar(500) not null,   primary key (`id`),   index `catalog_book_files_ndx1` (`book_id` asc, `book_order` asc),   index `catalog_book_files.fk1_idx` (),   constraint `catalog_book_files.fk1`     foreign key ()     references `gospel_library`.`catalog_book` ()     on delete no action     on update no action) engine = innodb default character set = utf8;

1064 - have error in sql syntax; check manual corresponds mysql server version right syntax use near '), constraint catalog_book_files.fk1 foreign key () references `gosp' @ line 13

i trying figure out solution use correct this. appreciated.

the problem creating index no columns specified. either remove

index `catalog_book_files.fk1_idx` (),

or change specify 1 or more columns

index `catalog_book_files.fk1_idx` (`somecolumn`),

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