SQL 外键约束错误 1025 (152) [英] SQL Foreign Key Constraint Error 1025 (152)

问题描述

每次尝试删除名为countires"的表和名为countries"的字段时，我都会收到错误消息.

I keep getting an error every time i try to drop a table called "countires" and a field called "countries".

#1025 - Error on rename of '.\mutli_page_form\survey'
to '.\mutli_page_form\#sql2-820-1fb' (errno: 152)

它说对表调查"有 FK 依赖，我多次尝试删除它但没有成功.

It says there is a FK dependency on the table "survey" i have tried multiple times to delete it to no success.

#1217 - Cannot delete or update a parent row: a foreign key constraint fails

我现在尝试删除国家/地区表时出现此错误

I now get this error once trying to delete the table of Countries

推荐答案

数据库已被告知要确保数据完整性.这就是你所看到的.有参考一个国家的调查数据.如果您删除国家/地区表，则调查数据将没有与之关联的有效国家/地区.您必须先删除调查，然后才能删除国家/地区.

The database has been told to ensure data integrity. This is what you're seeing. There is survey data that references a country. If you delete the country table then the survey data won't have valid countries associated with it. You'll have to remove the surveys first before you can remove the countries.

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