Question

我在访问页面时在本地看到此错误：

Mysql2::Error - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'and reference_number > )  ORDER BY reference_number asc LIMIT 1' at line 1:

这是什么意思？该查询不会在生产中失败，但会在本地发生。在digitalOcean上，我看到了：

ssh <username>@107.170.112.8
Welcome to Ubuntu 14.04 LTS (GNU/Linux 3.13.0-24-generic x86_64)

 * Documentation:  https://help.ubuntu.com/

  System information as of Wed Oct 17 22:25:21 EDT 2018

  System load:  1.26                Processes:           108
  Usage of /:   80.1% of 157.36GB   Users logged in:     0
  Memory usage: 59%                 IP address for eth0: 107.170.112.8
  Swap usage:   2%                  IP address for eth1: 10.128.133.134

  Graph this data and manage this system at:
    https://landscape.canonical.com/

414 packages can be updated.
294 updates are security updates.

Last login: Wed Oct 17 22:25:22 2018 from 65.200.165.210
<username>:~$ mysql --version
mysql  Ver 14.14 Distrib 5.5.37, for debian-linux-gnu (x86_64) using readline 6.3

我的msql版本之间不匹配吗？

有问题的查询（Rails 4.15中的activeRecord）是这样的：

 other_catalog_item = @current_checkout_location.checked_in_current_catalog_items
    .where("catalog_section_id = #{selected_catalog_item.catalog_section_id} and reference_number > #{selected_catalog_item.reference_number}")
    .order('reference_number asc')
    .limit(1).first

问题是...如果我在本地进行更改，则会冒生产中断的风险。我该怎么办？这个问题的根源是什么？

Answer 1

查看此

Mysql2::Error - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'and reference_number > )  ORDER BY reference_number asc LIMIT 1' at line 1:

and reference_number > )是错误的mysql adapters。取决于您本地数据和生产数据是否不同，selected_catalog_item没有参考编号，因此会导致问题

reference_number > #{selected_catalog_item.reference_number}"

mysql语法在本地出现错误，但不在生产环境中

1 个答案: