sql - 一个版本的查询中出现 MySQL 错误 1111，另一版本中出现错误 1054

Question

我有两个表:

• 书籍:[isbn、书名、出版商、...]
• 库存:[isbn、日期、num_changed]

我想退回有库存的书名。我尝试了连接(查询 1)并得到了 1054 错误，然后我用文字值替换了引用，现在得到了 1111 错误。

查询1:

SELECT `books`.`isbn`, `books`.`book_title`, SUM( `inventory`.`numbers_changed` ) AS `num`
FROM `books`
INNER JOIN `inventory` ON `books`.`isbn` = `inventory`.`isbn`
WHERE `books`.`publisher` LIKE '%pint%'
AND `num` > '0'

查询2:

SELECT `books`.`isbn`, `books`.`book_title`, SUM( `inventory`.`numbers_changed` )
FROM `books`
INNER JOIN `inventory` ON `books`.`isbn` = `inventory`.`isbn`
WHERE `books`.`publisher` LIKE '%print%'
AND SUM( `inventory`.`numbers_changed` ) > '0'

正确使用的查询是什么？

编辑
以下是创建表查询:

CREATE TABLE IF NOT EXISTS `books` (
  `isbn` varchar(30) CHARACTER SET ascii NOT NULL,
  `book_title` varchar(255) CHARACTER SET utf8 COLLATE utf8_persian_ci NOT NULL,
  `date_published` varchar(10) CHARACTER SET ascii NOT NULL,
  `author` varchar(40) CHARACTER SET utf8 COLLATE utf8_persian_ci NOT NULL,
  `translator` varchar(40) CHARACTER SET utf8 COLLATE utf8_persian_ci DEFAULT NULL,
  `publisher` varchar(50) CHARACTER SET utf8 COLLATE utf8_persian_ci NOT NULL,
  `ganre` varchar(50) CHARACTER SET utf8 COLLATE utf8_persian_ci NOT NULL,
  `price` int(7) unsigned NOT NULL,
  `cover_pic` int(1) unsigned NOT NULL DEFAULT '0',
  PRIMARY KEY (`isbn`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8;

CREATE TABLE IF NOT EXISTS `inventory` (
  `isbn` varchar(30) CHARACTER SET ascii NOT NULL,
  `date` varchar(10) CHARACTER SET ascii NOT NULL,
  `numbers_changed` int(5) NOT NULL
) ENGINE=MyISAM DEFAULT CHARSET=utf8;

Answer 1

1054 错误与引用不存在的列有关。实际的错误消息将有助于了解导致问题的原因。

1111 错误是因为您尝试在 WHERE 子句中使用聚合函数(在本例中为 SUM):

WHERE ...
  AND SUM( `inventory`.`numbers_changed` ) > '0'  
      ^
      |__ see this?

...在子查询之外。 SQL语句是从下到上检查的，所以我希望删除WHERE子句中的SUM将显示1054错误仍然没有解决。