MariaDB 显示警告而不是错误

2022-01-15 00:00:00 mariadb mysql

MariaDB 版本:10.6.4-MariaDB-1:10.6.4+maria~focal

MariaDB version: 10.6.4-MariaDB-1:10.6.4+maria~focal

SQL:

insert ignore into `step` (is_draft, created_by) values ('1', 2);

收到警告:

MariaDB [kite]> show warningsG
*************************** 1. row ***************************
  Level: Warning
   Code: 1364
Message: Field 'course_id' doesn't have a default value
*************************** 2. row ***************************
  Level: Warning
   Code: 1364
Message: Field 'title' doesn't have a default value
*************************** 3. row ***************************
  Level: Warning
   Code: 1452
Message: Cannot add or update a child row: a foreign key constraint fails (`kite`.`step`, CONSTRAINT `step_ibfk_1` FOREIGN KEY (`course_id`) REFERENCES `course` (`course_id`) ON DELETE CASCADE ON UPDATE CASCADE)
3 rows in set (0.000 sec)

如果约束失败，我预计会出现错误.事实上，它曾经是，但不是现在.如何启用错误而不是警告?

I'm expecting to have an error if a constraint fails. In fact, it used to, but not now. How to enable errors instead of warnings?

在 Google 上搜索 SQL_MODE 并尝试了不同的组合，但没有成功:

Googled about SQL_MODE and tried different combinations, but no luck:

MariaDB [kite]> SELECT @@SQL_MODE, @@GLOBAL.SQL_MODEG
*************************** 1. row ***************************
       @@SQL_MODE: STRICT_TRANS_TABLES,STRICT_ALL_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,TRADITIONAL,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
@@GLOBAL.SQL_MODE: STRICT_TRANS_TABLES,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION

提前致谢！

更新:看起来问题出在 ignore 关键字中.如果我删除 - 它会按预期工作.

UPDATE: Looks like the problem is in ignore keyword. If I remove - it works as expected.

推荐答案

如果你想要错误而不是警告，那么不要使用 ignore.

If you want errors instead of warnings, then don't use ignore.

https://mariadb.com/kb/en/insert-ignore/ 说:

通过使用 IGNORE 关键字，所有错误都将转换为警告，这不会停止插入其他行.

By using the IGNORE keyword all errors are converted to warnings, which will not stop inserts of additional rows.

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