`publishercode` varchar(255) default NULL,
`volumedate` date default NULL,
`volumeddesc` text,
- `collectiontitle` mediumtext NOT NULL,
- `collectionissn` text NOT NULL,
- `collectionvolume` mediumtext NOT NULL,
- `editionstatement` text NOT NULL,
- `editionresponsibility` text NOT NULL,
+ `collectiontitle` mediumtext default NULL,
+ `collectionissn` text default NULL,
+ `collectionvolume` mediumtext default NULL,
+ `editionstatement` text default NULL,
+ `editionresponsibility` text default NULL,
`timestamp` timestamp NOT NULL default CURRENT_TIMESTAMP on update CURRENT_TIMESTAMP,
`illus` varchar(255) default NULL,
`pages` varchar(255) default NULL,