MySQL默认模式是sql_safe_updates=1的.在这个模式下不管你是update还是delete一行where 条件都要指定主键.如果where条件只出现的不是主键就会出错. 例子: set sql_safe_updates =1;--开始安全更新.这个是我这个例子的前提. --第一步:建立两个表 create table t(x int,y int); create table t2(x int primary key,y int); --第二步:向表中插入数据 insert in…

转载自:http://blog.csdn.net/dragonpeng2008/article/details/7279590 Error: 1175 SQLSTATE: HY000 (ER_UPDATE_WITHOUT_KEY_IN_SAFE_MODE) Message: You are using safe update mode and you tried to update a table without a WHERE that uses a KEY column. Solution:…

Error Code: 1175. You are using safe update mode and you tried to update a table without a WHERE that uses a KEY column To disable safe mode, toggle the option in Preferences -> SQL Queries and reconnect. 这是因为MySql运行在safe-updates模式下,该模式会导致非主键条件下无法执行u…

错误: Error Code: . You are using safe update mode and you tried to update a table without a WHERE that uses a KEY column To disable safe mode, toggle the option in Preferences -> SQL Queries and reconnect. 这是因为MySQL运行在safe-updates模式下,该模式会导致非主键条件下无法执行u…

使用MySQL执行update的时候报错:Error Code: 1175. You are using safe update mode and you tried to update a table without a WHERE that uses a KEY column To disable safe mode, toggle the option in Preferences -> SQL Queries and reconnect. 在使用mysql执行update的时候,如果不是…

在使用mysql执行update的时候,如果不是用主键当where语句,会报如下错误,使用主键用于where语句中正常. ) Error Code: . You are using safe update mode and you tried to update a table without a WHERE that uses a KEY column To disable safe mode, toggle the option in Preferences -> SQL Editor an…

Mysql update error: Error Code: 1175. You are using safe update mode and you tried to update a table without a WHERE that uses a KEY column To disable safe mode, toggle the option in Preferences -> SQL Queries and reconnect mysql有个叫SQL_SAFE_UPDATES的变…

今天遇到一个mysql错误:   Error Code: . You are using safe update mode and you tried to update a table without a WHERE that uses a KEY column To disable safe mode, toggle the option in Preferences -> SQL Queries and reconnect. 网上查了一下,原来是SET SQL_SAFE_UPDATES设置…

MySQL 误操作后数据恢复(update,delete忘加where条件) 关键词:mysql误删数据,mysql误更新数据 转自:https://www.cnblogs.com/gomysql/p/3582058.html 在数据库日常维护中,开发人员是最让人头痛的,很多时候都会由于SQL语句写的有问题导致服务器出问题,导致资源耗尽.最危险的操作就是在做DML操作的时候忘加where条件,导致全表更新,这是作为运维或者DBA的我们改如何处理呢?下面我分别针对update和delete操作忘加…

1 引言 当更新字段缺少where语句时,mysql会提示一下错误代码: Error Code: 1175. You are using safe update mode and you tried to update a table without a WHERE that uses a KEY column To disable safe mode, toggle the option in Preferences -> SQL Queries and reconnect. 0.000 se…