mysql觸發器部分工作

Question

我的應用程序需要5種不同類別的車輛，每種車輛都有一些共同的領域。所以我所做的就是爲車輛的5個類別vehicle1,vehicle2,vehicle3,vehicle4,,vehicle5 的每一個創建5個表格，然後創建第6個表格「車輛」來存儲每個車輛通用的字段。現在，無論何時輸入與特定車輛相關的信息（該車輛是INSERT INTO該特定車輛的類別表），都會執行一個觸發器，將公共字段插入vehicle表中。所以觸發這個樣子

CREATE TRIGGER `tr_vehicle1_info` AFTER INSERT ON `vehicle1` 
FOR EACH ROW insert into vehicle(categ,year,make,model,vin,user_id,principal_driver) values (1,new.year,new.make,new.model,new.vin,new.user_id,new.principal_driver) 

CREATE TRIGGER `tr_vehicle1_info` AFTER INSERT ON `vehicle2` 
FOR EACH ROW insert into vehicle(categ,year,make,model,vin,user_id,principal_driver) values (2,new.year,new.make,new.model,new.vin,new.user_id,new.principal_driver) 

CREATE TRIGGER `tr_vehicle1_info` AFTER INSERT ON `vehicle3` 
FOR EACH ROW insert into vehicle(categ,year,make,model,vin,user_id,principal_driver) values (3,new.year,new.make,new.model,new.vin,new.user_id,new.principal_driver) 

等等.....

現在的問題是，當我插入信息，車輛的觸發器執行和值表中插入vehicle但對於vehicle表中的categ字段，總是插入0。 categ字段的類型是tinyint(1)。

我不明白什麼是錯的。幫幫我？

更新車輛的

模式

CREATE TABLE IF NOT EXISTS `vehicle` (
    `id` int(11) NOT NULL AUTO_INCREMENT, 
    `categ` tinyint(1) NOT NULL, 
    `year` char(4) NOT NULL, 
    `make` varchar(30) NOT NULL, 
    `model` varchar(50) NOT NULL, 
    `vin` varchar(25) NOT NULL, 
    `user_id` int(11) NOT NULL, 
    `principal_driver` int(11) DEFAULT NULL, 
    `secondary_driver` varchar(30) NOT NULL, 
    `status` tinyint(1) NOT NULL DEFAULT '1', 
    PRIMARY KEY (`id`), 
    KEY `vin` (`vin`,`user_id`) 
) ENGINE=InnoDB; 

Answer 1

它是正確的，你的任何代碼樣本中的觸發器具有相同的名稱？我會建議檢查原始代碼中的拼寫錯誤。

Answer 2

您的類別定義爲單個位：「TINYINT（1）」分配1位來存儲整數。所以你只能在其中存儲0或1。 （編輯：我錯誤的存儲分配，我誤解了文檔。）但我真的不明白你爲什麼要輸入信息「倒退」。我會將信息輸入到主車輛表中，然後將記錄鏈接到帶有特定於車輛類別的列的表格中，如果您想避免一堆空條目 - 通常我只是根據信息類型將空字段重新用於節省空間（如果我不打算通過這些信息搜索很多，如果有的話），只檢索我需要的東西。但我不知道你想要完成什麼，所以我不能肯定地說。

編輯：它工作，如果不是你有什麼問題？以下是我可能會做（注意：不是完整的，也不是選中）：

 CREATE TABLE IF NOT EXISTS `logistics`.`vehicle` (
      `id` INT(11) UNSIGNED NOT NULL AUTO_INCREMENT , 
      `category` TINYINT(4) NOT NULL COMMENT '(4) Allows for 7 vehicle Categories' , 
      `v_year` YEAR NOT NULL , 
      `v_make` VARCHAR(30) NOT NULL , 
      `created` TIMESTAMP NULL DEFAULT CURRENT_TIMESTAMP , 
      `modified` TIMESTAMP NULL DEFAULT NULL ON UPDATE CURRENT_TIMESTAMP , 
      PRIMARY KEY (`id`)) 
     ENGINE = InnoDB; 

      CREATE TABLE IF NOT EXISTS `logistics`.`driver` (
      `id` INT(11) UNSIGNED NOT NULL AUTO_INCREMENT , 
      `first_name` VARCHAR(45) NOT NULL , 
      `middle_name` VARCHAR(45) NULL COMMENT 'helpful in cases of 2 drivers with the exact same first and last' , 
      `sir_name` VARCHAR(45) NOT NULL , 
      `suffix_name` VARCHAR(45) NULL COMMENT 'rather than \"pollute\" your sir name with a suffix' , 
      `license_num` VARCHAR(45) NOT NULL COMMENT 'Always handy in case of claims, reporting, and checking with the DMV, etc.' , 
      `license_expiration` DATE NOT NULL COMMENT 'Allows status of driver\'s license report to be run and alert staff of needed to verify updated license' , 
      `license_class` CHAR(1) NULL COMMENT 'From what I know classes are \'A\' through \'D\' and usually a single letter. Helpful if needing to assign drivers to vehicles.' , 
      `created` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP , 
      `modified` TIMESTAMP NULL DEFAULT NULL ON UPDATE CURRENT_TIMESTAMP , 
      PRIMARY KEY (`id`)) 
     ENGINE = InnoDB; 
      CREATE TABLE IF NOT EXISTS `logistics`.`driver_vehicle` (
      `vehicle_id` INT(11) UNSIGNED NOT NULL , 
      `driver_id` INT(11) UNSIGNED NOT NULL , 
      `principal_driver` TINYINT(1) NOT NULL DEFAULT 'FALSE' COMMENT 'if not specified it will be assumed the driver is not a primary.' , 
      `created` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP , 
      `modified` TIMESTAMP NULL DEFAULT NULL ON UPDATE CURRENT_TIMESTAMP , 
      `admin_id` INT(11) UNSIGNED NOT NULL , 
      PRIMARY KEY (`vehicle_id`, `driver_id`) , 
      INDEX `fk_driver_vehicle_driver1` (`driver_id` ASC) , 
      CONSTRAINT `fk_driver_vehicle_vehicle` 
      FOREIGN KEY (`vehicle_id`) 
      REFERENCES `mydb`.`vehicle` (`id`) 
      ON DELETE CASCADE 
      ON UPDATE CASCADE, 
      CONSTRAINT `fk_driver_vehicle_driver1` 
      FOREIGN KEY (`driver_id`) 
      REFERENCES `mydb`.`driver` (`id`) 
      ON DELETE CASCADE 
      ON UPDATE CASCADE) 
     ENGINE = InnoDB; 

     CREATE TABLE IF NOT EXISTS `logistics`.`vehicle_options` (
    `vehicle_id` INT(11) UNSIGNED NOT NULL , 
    `option_type` VARCHAR(45) NOT NULL COMMENT 'if certain options are common you could pull by type of option i.e. cosmetic, cargo, hp, weight_capacity, max_speed, etc.' , 
    `option_value` VARCHAR(45) NOT NULL , 
    PRIMARY KEY (`vehicle_id`, `option_type`) , 
    CONSTRAINT `fk_vehicle_options_vehicle1` 
    FOREIGN KEY (`vehicle_id`) 
    REFERENCES `mydb`.`vehicle` (`id`) 
    ON DELETE CASCADE 
    ON UPDATE CASCADE) 
ENGINE = InnoDB;