UserOrderテーブルにdiscountcodeという列を追加しようとしました。これはnull許容の外部キーです
alter table UserOrder add column discountCode varchar(100) null;
alter table UserOrder add foreign key FK_UserOrder_DiscountCode_code(`discountCode`) references DiscountCode(`code`);
エラーは2行目で発生します。両方のテーブルでInnoDBが実行されています。私はMySQL5.5.11を使用しています。
これがエラーログです...
[2012-05-29 23:59:07] [42S01][1050] Table '.\realtorprint_dev_dev\userorder' already exists
[2012-05-29 23:59:07] [HY000][1025] Error on rename of '.\realtorprint_dev_dev\#sql-28a4_3' to '.\realtorprint_dev_dev\userorder' (errno: -1)
[2012-05-29 23:59:07] [42S01][1050] Table '.\realtorprint_dev_dev\userorder' already exists
これが「showcreateTableUserOrder」です。
'CREATE TABLE `userorder` (
`id` bigint(20) NOT NULL AUTO_INCREMENT,
`created` datetime NOT NULL,
`paymentTxID` varchar(255) DEFAULT NULL,
`shippedDate` datetime DEFAULT NULL,
`shippingTrackingNumber` varchar(255) DEFAULT NULL,
`taxType` varchar(255) NOT NULL,
`taxValue` decimal(10,2) NOT NULL,
`orderStatus` varchar(50) NOT NULL,
`user_id` bigint(20) NOT NULL,
`address` varchar(255) NOT NULL,
`city` varchar(255) NOT NULL,
`country` varchar(255) NOT NULL,
`stateProvince` varchar(255) NOT NULL,
`zipPostal` varchar(255) NOT NULL,
`paymentType` varchar(255) NOT NULL,
`backendUserId` bigint(20) DEFAULT NULL,
`adjustedTotalPrice` decimal(10,2) DEFAULT NULL,
`adjustedPrinterPrice` decimal(10,2) DEFAULT NULL,
`adminNotes` varchar(2048) DEFAULT NULL,
`printerBillStatus` varchar(40) NOT NULL,
`userInvoiceStatus` varchar(40) NOT NULL,
`expeditedAddressDescription` varchar(255) DEFAULT NULL,
`shippingType` varchar(50) NOT NULL,
`shippingCost` decimal(10,2) NOT NULL,
`discountCode` varchar(100) DEFAULT NULL,
`discountAmount` decimal(10,2) NOT NULL,
PRIMARY KEY (`id`),
KEY `idx_UserOrder_user_id` (`user_id`),
KEY `idx_UserOrder_orderStatus_id` (`orderStatus`),
KEY `FK_UserOrder_PaymentType` (`paymentType`),
KEY `FK_UserOrder_PrinterBillStatus_Name` (`printerBillStatus`),
KEY `FK_UserOrder_UserInvoiceStatus_Name` (`userInvoiceStatus`),
KEY `FK_UserOrder_User` (`backendUserId`),
KEY `FK_UserOrder_ShippingType_name` (`shippingType`),
CONSTRAINT `FK_UserOrderBcknd_User` FOREIGN KEY (`backendUserId`) REFERENCES `user` (`id`) ON DELETE NO ACTION ON UPDATE NO ACTION,
CONSTRAINT `FK_UserOrder_user_id` FOREIGN KEY (`user_id`) REFERENCES `user` (`id`),
CONSTRAINT `userorder_ibfk_1` FOREIGN KEY (`shippingType`) REFERENCES `shippingtype` (`name`),
CONSTRAINT `UserOrder_ibfk_2` FOREIGN KEY (`paymentType`) REFERENCES `paymenttype` (`name`),
CONSTRAINT `UserOrder_ibfk_6` FOREIGN KEY (`printerBillStatus`) REFERENCES `printerbillstatus` (`name`),
CONSTRAINT `UserOrder_ibfk_7` FOREIGN KEY (`userInvoiceStatus`) REFERENCES `userinvoicestatus` (`name`),
CONSTRAINT `UserOrder_ibfk_8` FOREIGN KEY (`orderStatus`) REFERENCES `orderstatus` (`name`)
) ENGINE=InnoDB AUTO_INCREMENT=21412 DEFAULT CHARSET=utf8'
これがshowcreatetableDiscountCode...です。
'CREATE TABLE `discountcode` (
`code` varchar(100) NOT NULL,
`percent` int(11) NOT NULL,
`created` datetime NOT NULL,
`expires` datetime NOT NULL,
`maxUses` int(11) NOT NULL,
`useCount` int(11) NOT NULL,
PRIMARY KEY (`code`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8'