mysql某建表語句

CREATE TABLE `product_info`(
`product_id` VARCHAR(32) NOT NULL COMMENT '主鍵',
`product_name` VARCHAR(64) NOT NULL COMMENT '商品名稱',
`product_price` DECIMAL(8,2) NOT NULL COMMENT '商品單價',
`product_stock` INT NOT NULL COMMENT '庫存',
`product_description` VARCHAR(64) COMMENT '描述',
`product_icon` VARCHAR(512) COMMENT '小圖',
`product_status` TINYINT(3) DEFAULT 0 COMMENT '商品狀態,0正常1下線',
`category_type` INT NOT NULL COMMENT '類目編號',
`create_time` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '建立時間',
`update_time` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '修改時間',
PRIMARY KEY (`product_id`)
) COMMENT '商品表';

CREATE TABLE `product_category`(
`category_id` INT NOT NULL AUTO_INCREMENT COMMENT '主鍵',
`category_name` VARCHAR(64) NOT NULL COMMENT '類目名字',
`category_type` INT NOT NULL COMMENT '類目編號',
`create_time` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '建立時間',
`update_time` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '修改時間',
PRIMARY KEY (`category_id`),
UNIQUE KEY `uqe_category_type` (`category_type`)
) COMMENT '類目表';

CREATE TABLE `order_master`(
`order_id` VARCHAR(32) NOT NULL COMMENT '主鍵',
`buyer_name` VARCHAR(32) NOT NULL COMMENT '買家名字',
`buyer_phone` VARCHAR(32) NOT NULL COMMENT '買家電話',
`buyer_address` VARCHAR(128) NOT NULL COMMENT '買家地址',
`buyer_openid` VARCHAR(64) NOT NULL COMMENT '買家微信openid',
`order_amount` DECIMAL(8,2) NOT NULL COMMENT '訂單總金額',
`order_status` TINYINT(3) NOT NULL DEFAULT '0' COMMENT '訂單狀態,默認0新下單',
`pay_status` TINYINT(3) NOT NULL DEFAULT '0' COMMENT '支付狀態,默認0未支付',
`create_time` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '建立時間',
`update_time` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '修改時間',
PRIMARY KEY (`order_id`),
KEY `idx_buyer_openid` (`buyer_openid`)
) COMMENT '訂單表';

CREATE TABLE `order_detail`(
`detail_id` VARCHAR(32) NOT NULL COMMENT '主鍵',
`order_id` VARCHAR(32) NOT NULL COMMENT '訂單id',
`product_id` VARCHAR(32) NOT NULL COMMENT '商品id',
`product_name` VARCHAR(64) NOT NULL COMMENT '商品名稱',
`product_price` DECIMAL(8,2) NOT NULL COMMENT '商品價格',
`product_quantity` INT NOT NULL COMMENT '商品數量',
`product_icon` VARCHAR(512) COMMENT '商品小圖',
`create_time` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '建立時間',
`update_time` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '修改時間',
PRIMARY KEY (`detail_id`),
KEY `idx_order_id` (`order_id`)
) COMMENT '訂單詳情';