--
DROP TABLE IF EXISTS `statistics`;
-CREATE TABLE `statistics` (
- `datetime` datetime default NULL,
- `branch` varchar(10) default NULL,
- `proccode` varchar(4) default NULL,
- `value` double(16,4) default NULL,
- `type` varchar(16) default NULL,
+CREATE TABLE `statistics` ( -- information related to transactions (circulation and fines) in Koha
+ `datetime` datetime default NULL, -- date and time of the transaction
+ `branch` varchar(10) default NULL, -- foreign key, branch where the transaction occurred
+ `proccode` varchar(4) default NULL, -- proceedure code
+ `value` double(16,4) default NULL, -- monetary value associated with the transaction
+ `type` varchar(16) default NULL, -- transaction type (locause, issue, return, renew, writeoff, payment, Credit*)
`other` mediumtext,
`usercode` varchar(10) default NULL,
- `itemnumber` int(11) default NULL,
- `itemtype` varchar(10) default NULL,
- `borrowernumber` int(11) default NULL,
+ `itemnumber` int(11) default NULL, -- foreign key from the items table, links transaction to a specific item
+ `itemtype` varchar(10) default NULL, -- foreign key from the itemtypes table, links transaction to a specific item type
+ `borrowernumber` int(11) default NULL, -- foreign key from the borrowers table, links transaction to a specific borrower
`associatedborrower` int(11) default NULL,
KEY `timeidx` (`datetime`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;