mysql错误1364字段没有默认值 [英] mysql error 1364 Field doesn't have a default values

问题描述

我的桌子看起来像

create table try ( name varchar(8), CREATED_BY varchar(40) not null);

然后我有一个触发器来自动填充CREATED_BY字段

and then I have a trigger to auto populate the CREATED_BY field

create trigger autoPopulateAtInsert BEFORE INSERT on try for each row set new.CREATED_BY=user();

当我使用

insert into try (name) values ('abc');

该条目是在表格中输入的，但我仍然收到错误消息

the entry is made in the table but I still get the error message

Field 'CREATED_BY' doesn't have a default value Error no 1364

有没有一种方法可以抑制此错误，而又不使字段可为空并且不删除触发器?否则，我的休眠状态将看到这些异常(即使已经进行了插入)，然后应用程序将崩溃.

Is there a way to suppress this error without making the field nullable AND without removing the triggfer? Otherwise my hibernate will see these exceptions ( even though the insertions have been made) and then application will crash.

推荐答案

设置Created_By的默认值(例如:空VARCHAR)，触发器将始终更新该值.

Set a default value for Created_By (eg: empty VARCHAR) and the trigger will update the value anyways.

create table try ( 
     name varchar(8), 
     CREATED_BY varchar(40) DEFAULT '' not null
);

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