mysql - 创建表时mysql错误

Question

我是 mysql 新手，请帮助我执行此表。

CREATE TABLE `jjsaar`.`dd_chq` (
  `reg_id` INTEGER UNSIGNED NOT NULL AUTO_INCREMENT,
  `receipt_no` INTEGER UNSIGNED NOT NULL,
  `name` VARCHAR NOT NULL,
  `add` VARCHAR NOT NULL,
  `phone_no` VARCHAR NOT NULL,
  `purpose` VARCHAR NOT NULL,
  `pay_method` VARCHAR NOT NULL,
  `amount` INTEGER UNSIGNED NOT NULL,
  `dd_chq_no` VARCHAR NOT NULL,
  `bank_details` VARCHAR NOT NULL,
  `timestamp` TIMESTAMP NOT NULL,
  PRIMARY KEY (`reg_id`)
)
ENGINE = InnoDB;

Answer 1

我猜你有这个错误信息

您的 SQL 语法有错误；检查与您的 MySQL 服务器版本相对应的手册，以在第 4 行的 'NOT NULL, addVARCHAR NOT NULL, phone_noVARCHAR(25) NOT NULL, ' 附近使用正确的语法：

您应该指定VARCHAR值的长度，例如

`name` VARCHAR(25) NOT NULL,

你的工作CREATE TABLE声明

CREATE TABLE `jjsaar`.`dd_chq` 
(
  `reg_id` INTEGER UNSIGNED NOT NULL AUTO_INCREMENT,
  `receipt_no` INTEGER UNSIGNED NOT NULL,
  `name` VARCHAR(25) NOT NULL,
  `add` VARCHAR(25) NOT NULL,
  `phone_no` VARCHAR(25) NOT NULL,
  `purpose` VARCHAR(25) NOT NULL,
  `pay_method` VARCHAR(25) NOT NULL,
  `amount` INTEGER UNSIGNED NOT NULL,
  `dd_chq_no` VARCHAR(25) NOT NULL,
  `bank_details` VARCHAR(25) NOT NULL,
  `timestamp` TIMESTAMP NOT NULL,
  PRIMARY KEY (`reg_id`)
)
ENGINE = InnoDB;

• SQLFiddle 演示链接

Answer 2

您必须指定varchar长度。例如：

CREATE TABLE `jjsaar`.`dd_chq` (
  `reg_id` INTEGER UNSIGNED NOT NULL AUTO_INCREMENT,
  `receipt_no` INTEGER UNSIGNED NOT NULL,
  `name` VARCHAR(50) NOT NULL,
  `add` VARCHAR(50) NOT NULL,
  `phone_no` VARCHAR(50) NOT NULL,
  `purpose` VARCHAR(50) NOT NULL,
  `pay_method` VARCHAR(50) NOT NULL,
  `amount` INTEGER UNSIGNED NOT NULL,
  `dd_chq_no` VARCHAR(50) NOT NULL,
  `bank_details` VARCHAR(50) NOT NULL,
  `timestamp` TIMESTAMP NOT NULL,
  PRIMARY KEY (`reg_id`)
)
ENGINE = InnoDB;