Navicat for MySQL 中,这个弹窗是什么意思?

Question

我的SQL语句,请问怎么改改?:

CREATE OR REPLACE VIEW
    书籍总览
AS SELECT DISTINCT
  b.id ,b.name 书名,b.cid 类目编号,t.type 类型,b.price 价格,b.time 导入时间
FROM
        shbooks AS b,shtype AS t
WHERE
    b.cid=t.id;

被联合的两个表属性:

CREATE TABLE `shbooks` (
  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
  `name` char(50) DEFAULT NULL,
  `cid` int(10) unsigned DEFAULT '0',
  `price` float(5,2) DEFAULT NULL,
  `time` datetime DEFAULT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `name` (`name`)
) ENGINE=InnoDB AUTO_INCREMENT=53 DEFAULT CHARSET=utf8;

CREATE TABLE `shtype` (
  `id` int(10) unsigned NOT NULL,
  `type` varchar(20) NOT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

Answer 1

我写上了,我试了试,用cmd 也没有影响..这个视图没主键无所谓是吧..

Answer 2

同意楼上,视图有没有主键无所谓啊