UPDATE pool SET status = NULL;

UPDATE lane SET STATUS = NULL;

UPDATE pool SET status = '1';

/*!40101 SET NAMES utf8 */;

/*!40101 SET SQL_MODE=''*/;

/*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
/*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
/*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */;
CREATE DATABASE /*!32312 IF NOT EXISTS*/`cascadeupdate` /*!40100 DEFAULT CHARACTER SET utf8 */;

USE `cascadeupdate`;

/*Table structure for table `element` */

DROP TABLE IF EXISTS `element`;

CREATE TABLE `element` (
  `element_id` int(11) NOT NULL AUTO_INCREMENT,
  `pool_pool_id` int(11) NOT NULL,
  `element` varchar(45) DEFAULT NULL,
  `status` char(1) DEFAULT '1',
  PRIMARY KEY (`element_id`),
  KEY `fk_element_pool1_idx` (`pool_pool_id`,`status`),
  CONSTRAINT `fk_element_pool1` FOREIGN KEY (`pool_pool_id`, `status`) REFERENCES `pool` (`pool_id`, `status`) ON DELETE NO ACTION ON UPDATE CASCADE
) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8;

/*Data for the table `element` */

insert  into `element`(`element_id`,`pool_pool_id`,`element`,`status`) values (1,1,'element 1','1'),(2,1,'element 2','1'),(3,1,'element 3','1');

/*Table structure for table `flowchart` */

DROP TABLE IF EXISTS `flowchart`;

CREATE TABLE `flowchart` (
  `flowchart_id` int(11) NOT NULL AUTO_INCREMENT,
  `flowchart` varchar(45) DEFAULT NULL,
  `process_process_id` int(11) NOT NULL,
  `status` char(1) DEFAULT '1',
  PRIMARY KEY (`flowchart_id`),
  UNIQUE KEY `index2` (`flowchart_id`,`status`),
  KEY `fk_flowchart_process1_idx` (`process_process_id`,`status`),
  CONSTRAINT `fk_flowchart_process1` FOREIGN KEY (`process_process_id`, `status`) REFERENCES `process` (`process_id`, `status`) ON DELETE NO ACTION ON UPDATE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

/*Data for the table `flowchart` */

/*Table structure for table `lane` */

DROP TABLE IF EXISTS `lane`;

CREATE TABLE `lane` (
  `lane_id` int(11) NOT NULL AUTO_INCREMENT,
  `pool_pool_id` int(11) NOT NULL,
  `lane` varchar(45) DEFAULT NULL,
  `status` char(1) DEFAULT '1',
  PRIMARY KEY (`lane_id`),
  KEY `fk_lane_pool_idx` (`pool_pool_id`,`status`),
  CONSTRAINT `fk_lane_pool` FOREIGN KEY (`pool_pool_id`, `status`) REFERENCES `pool` (`pool_id`, `status`) ON DELETE NO ACTION ON UPDATE CASCADE
) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8;

/*Data for the table `lane` */

insert  into `lane`(`lane_id`,`pool_pool_id`,`lane`,`status`) values (1,1,'lane 1','1'),(2,1,'lane 2','1'),(3,1,'lane 3','1');

/*Table structure for table `pool` */

DROP TABLE IF EXISTS `pool`;

CREATE TABLE `pool` (
  `pool_id` int(11) NOT NULL AUTO_INCREMENT,
  `pool` varchar(45) DEFAULT NULL,
  `status` char(1) DEFAULT '1',
  PRIMARY KEY (`pool_id`),
  UNIQUE KEY `index2` (`pool_id`,`status`)
) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8;

/*Data for the table `pool` */

insert  into `pool`(`pool_id`,`pool`,`status`) values (1,'pool 1','1');

/*Table structure for table `process` */

DROP TABLE IF EXISTS `process`;

CREATE TABLE `process` (
  `process_id` int(11) NOT NULL AUTO_INCREMENT,
  `process` varchar(45) DEFAULT NULL,
  `status` char(1) DEFAULT '1',
  PRIMARY KEY (`process_id`),
  UNIQUE KEY `index2` (`process_id`,`status`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

/*Data for the table `process` */

/*!40101 SET SQL_MODE=@OLD_SQL_MODE */;
/*!40014 SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS */;
/*!40014 SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS */;
/*!40111 SET SQL_NOTES=@OLD_SQL_NOTES */;

<e>Query: update lane set status = 0

Error Code: 1452
Cannot add or update a child row: a foreign key constraint fails (`cascadeupdate`.`lane`, CONSTRAINT `fk_lane_pool` FOREIGN KEY (`pool_pool_id`, `status`) REFERENCES `pool` (`pool_id`, `status`) ON DELETE NO ACTION ON UPDATE CASCADE)