表“inventory1”的外键约束失败.asset_details“:错误

这是我在运行show DB innobd状态命令时收到的错误消息。我是 php 和 mysql 的新手，任何帮助将不胜感激。提前谢谢你.

当我将数据提交到数据库中时，信息会进入资产表，但不会进入assert_details？

LATEST FOREIGN KEY ERROR
------------------------
120811 22:40:43 Transaction:
TRANSACTION 1A4F, ACTIVE 0 sec inserting
mysql tables in use 1, locked 1
4 lock struct(s), heap size 1248, 2 row lock(s), undo log entries 2
MySQL thread id 73, OS thread handle 0x10ccc4000, query id 339 localhost root update
INSERT INTO asset_details (asset_type,make, model, serial_number, os,os_version,memory, hdd, processor,notes)
            Values( 'Monitor','Apple ','Mac Book Pro 17 inch ','65655453445545','Macintosh','Snow Lion ','5 gb ','1 TB','Intel i 9','This is Paskale New Mac book pro computer.')
Foreign key constraint fails for table `inventory1`.`asset_details`:
,
  CONSTRAINT `asset_tag` FOREIGN KEY (`asset_tag`) REFERENCES `asset` (`asset_tag`) ON DELETE CASCADE ON UPDATE CASCADE
Trying to add in child table, in index `asset_tag` tuple:
DATA TUPLE: 2 fields;
 0: len 4; hex 80000000; asc     ;;
 1: len 4; hex 80000001; asc     ;;
But in parent table `inventory1`.`asset`, in index `PRIMARY`,
the closest match we can find is record:
PHYSICAL RECORD: n_fields 8; compact format; info bits 0
 0: len 4; hex 80000007; asc     ;;
 1: len 6; hex 000000001a4f; asc      O;;
 2: len 7; hex c0000001d40110; asc        ;;
 3: SQL NULL;
 4: len 14; hex 4465636f6d6d697373696f6e6564; asc Decommissioned;;
 5: SQL NULL;
 6: len 7; hex 4d6f6e69746f72; asc Monitor;;
 7: SQL NULL;

这是在我的数据库中创建表的脚本。

这是创建表的脚本

SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0;
SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0;
SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='TRADITIONAL';
DROP SCHEMA IF EXISTS `inventory1` ;
CREATE SCHEMA IF NOT EXISTS `inventory1` DEFAULT CHARACTER SET latin1 COLLATE latin1_swedish_ci ;
USE `inventory1` ;
-- -----------------------------------------------------
-- Table `inventory1`.`department`
-- -----------------------------------------------------
DROP TABLE IF EXISTS `inventory1`.`department` ;
CREATE  TABLE IF NOT EXISTS `inventory1`.`department` (
  `department_id` INT NOT NULL AUTO_INCREMENT ,
  `department_name` VARCHAR(45) NOT NULL ,
  `job_id` VARCHAR(45) NOT NULL ,
  PRIMARY KEY (`department_id`) )
ENGINE = InnoDB;

-- -----------------------------------------------------
-- Table `inventory1`.`employee`
-- -----------------------------------------------------
DROP TABLE IF EXISTS `inventory1`.`employee` ;
CREATE  TABLE IF NOT EXISTS `inventory1`.`employee` (
  `employee_id` INT NULL AUTO_INCREMENT ,
  `department_id` INT NOT NULL ,
  `fname` VARCHAR(45) NULL ,
  `lname` VARCHAR(45) NULL ,
  `email` VARCHAR(45) NULL ,
  `phone_number` VARCHAR(45) NULL ,
  `hire_date` VARCHAR(45) NULL ,
  `job_id` VARCHAR(45) NULL ,
  `manager_id` VARCHAR(45) NULL ,
  PRIMARY KEY (`employee_id`) ,
  INDEX `department_id` (`department_id` ASC) ,
  CONSTRAINT `department_id`
    FOREIGN KEY (`department_id` )
    REFERENCES `inventory1`.`department` (`department_id` )
    ON DELETE CASCADE
    ON UPDATE CASCADE)
ENGINE = InnoDB;

-- -----------------------------------------------------
-- Table `inventory1`.`invoice`
-- -----------------------------------------------------
DROP TABLE IF EXISTS `inventory1`.`invoice` ;
CREATE  TABLE IF NOT EXISTS `inventory1`.`invoice` (
  `invoice_id` INT NOT NULL AUTO_INCREMENT ,
  `invoice_number` INT NULL ,
  `invoice_date` INT UNSIGNED NULL ,
  `purchase_price` INT UNSIGNED NULL ,
  `quantity` INT UNSIGNED NULL ,
  `order_date` INT UNSIGNED NULL ,
  `vender` INT UNSIGNED NULL ,
  `warranty_end` DATE NULL ,
  `notes` VARCHAR(255) NULL ,
  PRIMARY KEY (`invoice_id`) )
ENGINE = InnoDB;

-- -----------------------------------------------------
-- Table `inventory1`.`asset`
-- -----------------------------------------------------
DROP TABLE IF EXISTS `inventory1`.`asset` ;
CREATE  TABLE IF NOT EXISTS `inventory1`.`asset` (
  `asset_tag` INT NOT NULL ,
  `invoice_id` INT NULL ,
  `status` VARCHAR(25) NULL ,
  `cap_ex` VARCHAR(20) NULL ,
  `asset_type` VARCHAR(25) NULL ,
  `invoice_number` INT NULL ,
  PRIMARY KEY (`asset_tag`) ,
  CONSTRAINT `invoice_id`
    FOREIGN KEY (`invoice_id` )
    REFERENCES `inventory1`.`invoice` (`invoice_id` )
    ON DELETE CASCADE
    ON UPDATE CASCADE)
ENGINE = InnoDB;

-- -----------------------------------------------------
-- Table `inventory1`.`location`
-- -----------------------------------------------------
DROP TABLE IF EXISTS `inventory1`.`location` ;
CREATE  TABLE IF NOT EXISTS `inventory1`.`location` (
  `location_id` INT NOT NULL AUTO_INCREMENT ,
  `location_name` VARCHAR(45) NULL ,
  `rack` INT NULL ,
  `row` INT NULL ,
  `unit` INT NULL ,
  PRIMARY KEY (`location_id`) )
ENGINE = InnoDB;

-- -----------------------------------------------------
-- Table `inventory1`.`physical_asset`
-- -----------------------------------------------------
DROP TABLE IF EXISTS `inventory1`.`physical_asset` ;
CREATE  TABLE IF NOT EXISTS `inventory1`.`physical_asset` (
  `physical_asset_id` INT NOT NULL AUTO_INCREMENT ,
  `location_id` INT NOT NULL ,
  `employee_id` INT NOT NULL ,
  `physical_asset_name` VARCHAR(45) NOT NULL ,
  PRIMARY KEY (`physical_asset_id`) ,
  INDEX `location_id` (`location_id` ASC) ,
  INDEX `employee_id` (`employee_id` ASC) ,
  CONSTRAINT `location_id`
    FOREIGN KEY (`location_id` )
    REFERENCES `inventory1`.`location` (`location_id` )
    ON DELETE CASCADE
    ON UPDATE CASCADE,
  CONSTRAINT `employee_id`
    FOREIGN KEY (`employee_id` )
    REFERENCES `inventory1`.`employee` (`employee_id` )
    ON DELETE CASCADE
    ON UPDATE CASCADE)
ENGINE = InnoDB;

-- -----------------------------------------------------
-- Table `inventory1`.`asset_details`
-- -----------------------------------------------------
DROP TABLE IF EXISTS `inventory1`.`asset_details` ;
CREATE  TABLE IF NOT EXISTS `inventory1`.`asset_details` (
  `asset_id` INT NULL AUTO_INCREMENT ,
  `asset_tag` INT NOT NULL ,
  `physical_asset_id` INT NULL ,
  `asset_type` VARCHAR(45) NULL ,
  `manufacturer` VARCHAR(45) NULL ,
  `os` VARCHAR(45) NULL ,
  `os_version` VARCHAR(45) NULL ,
  `make` VARCHAR(45) NULL ,
  `model` VARCHAR(45) NULL ,
  `serial_number` VARCHAR(45) NULL ,
  `processor` VARCHAR(45) NULL ,
  `ram` VARCHAR(45) NULL ,
  `memory` VARCHAR(45) NULL ,
  `hdd` VARCHAR(45) NULL ,
  `host_name` VARCHAR(45) NULL ,
  `notes` VARCHAR(250) NULL ,
  PRIMARY KEY (`asset_id`) ,
  INDEX `physical_asset_id` (`physical_asset_id` ASC) ,
  INDEX `asset_tag` (`asset_tag` ASC) ,
  CONSTRAINT `physical_asset_id`
    FOREIGN KEY (`physical_asset_id` )
    REFERENCES `inventory1`.`physical_asset` (`physical_asset_id` )
    ON DELETE CASCADE
    ON UPDATE CASCADE,
  CONSTRAINT `asset_tag`
    FOREIGN KEY (`asset_tag` )
    REFERENCES `inventory1`.`asset` (`asset_tag` )
    ON DELETE CASCADE
    ON UPDATE CASCADE)
ENGINE = InnoDB;

SET SQL_MODE=@OLD_SQL_MODE;
SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS;
SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS;

    LATEST FOREIGN KEY ERROR
    ------------------------
    120811 22:40:43 Transaction:
    TRANSACTION 1A4F, ACTIVE 0 sec inserting
    mysql tables in use 1, locked 1
    4 lock struct(s), heap size 1248, 2 row lock(s), undo log entries 2
    MySQL thread id 73, OS thread handle 0x10ccc4000, query id 339 localhost root update
    INSERT INTO asset_details (asset_type,make, model, serial_number, os,os_version,memory, hdd, processor,notes)
                Values( 'Monitor','Apple ','Mac Book Pro 17 inch ','65655453445545','Macintosh','Snow Lion ','5 gb ','1 TB','Intel i 9','This is Paskale New Mac book pro computer.')
    Foreign key constraint fails for table `inventory1`.`asset_details`:
    ,
      CONSTRAINT `asset_tag` FOREIGN KEY (`asset_tag`) REFERENCES `asset` (`asset_tag`) ON DELETE CASCADE ON UPDATE CASCADE
    Trying to add in child table, in index `asset_tag` tuple:
    DATA TUPLE: 2 fields;
     0: len 4; hex 80000000; asc     ;;
     1: len 4; hex 80000001; asc     ;;
    But in parent table `inventory1`.`asset`, in index `PRIMARY`,
    the closest match we can find is record:
    PHYSICAL RECORD: n_fields 8; compact format; info bits 0
     0: len 4; hex 80000007; asc     ;;
     1: len 6; hex 000000001a4f; asc      O;;
     2: len 7; hex c0000001d40110; asc        ;;
     3: SQL NULL;
     4: len 14; hex 4465636f6d6d697373696f6e6564; asc Decommissioned;;
     5: SQL NULL;
     6: len 7; hex 4d6f6e69746f72; asc Monitor;;
     7: SQL NULL;