Question

我在不同的架构上有两个表

db1.invoice

CREATE TABLE IF NOT EXISTS db1.`invoice` (
  `invoice_id` int(11) NOT NULL AUTO_INCREMENT,
  `qsales_sale_id` int(11) DEFAULT NULL,
  `invoice_id_from_dosage_id` int(11) NOT NULL,
  `number` int(11) DEFAULT NULL,
  `enterprise_name` varchar(100) DEFAULT NULL,
  `subsidiary_name` varchar(100) DEFAULT NULL,
  `subsidiary_address` varchar(200) DEFAULT NULL,
  `subsidiary_phone` varchar(40) DEFAULT NULL,
  `client_name` varchar(200) DEFAULT NULL,
  `nit` bigint(20) DEFAULT NULL,
  `was_paid` tinyint(1) DEFAULT NULL,
  PRIMARY KEY (`invoice_id`),
  KEY `fk_invoice_qsales_sale1_idx` (`qsales_sale_id`)
) ENGINE=InnoDB  DEFAULT CHARSET=utf8 AUTO_INCREMENT=457 ;

bd2.qsale_sale

CREATE TABLE IF NOT EXISTS db2.qsales_sale (
  `qsales_sale_id` int(11) NOT NULL AUTO_INCREMENT,
  `qsales_order_type_id` int(11) NOT NULL,
  `client_id` int(11) NOT NULL,
  `total_cost` decimal(10,2) DEFAULT NULL,
  `currency` varchar(45) DEFAULT NULL,
  `created_at` datetime DEFAULT NULL,
  `has_discount` tinyint(1) DEFAULT NULL,
  `created_by` int(11) NOT NULL,
  `is_wholesaler` tinyint(1) NOT NULL DEFAULT '0',
  `payment_type` varchar(65) DEFAULT NULL,
  PRIMARY KEY (`qsales_sale_id`),
  KEY `fk_qsales_sale_qsales_order_type1_idx` (`qsales_order_type_id`),
  KEY `fk_qsales_sale_client1_idx` (`client_id`),
  KEY `fk_qsales_sale_employee1_idx` (`created_by`)
) ENGINE=InnoDB  DEFAULT CHARSET=utf8 AUTO_INCREMENT=51 ;

然后我想添加一个外键我尝试： 1。

alter table bd1.invoice
 add foreign key fk_invoice_qsales_sale1(qsales_sale_id) 
     references db2.qsales_sale (qsales_sale_id)
     on delete cascade
     on update cascade;

ALTER TABLE db1.invoice 添加约束fk_invoice_qsales_sale1外键（qsales_sale_id）参考db2。qsales_sale（qsales_sale_id）在更新时不执行任何操作;

但我有这个错误：

Error Code: 1452. Cannot add or update a child row: a foreign key constraint fails (`qfix`.`#sql-a28_5`, CONSTRAINT `#sql-a28_5_ibfk_1` FOREIGN KEY (`qsales_sale_id`) REFERENCES `qsales`.`qsales_sale` (`qsales_sale_id`) ON DELETE CASCADE ON UPDATE CASCADE)

0.625 sec

两个不同模式上的外键mysql

0 个答案: