Specified key was too long; max key length is 767 bytes 说明: 执行当前 Web 请求期间,出现未经处理的异常.请检查堆栈跟踪信息,以了解有关该错误以及代码中导致错误的出处的详细信息. 异常详细信息: MySql.Data.MySqlClient.MySqlException: Specified key was too long; max key length is 767 bytes 给Context增加如下的注解 [DbConfigu…

在用EF的CodeFirst操作MySql时,提示 Specified key was too long; max key length is 767 bytes错误,但数据库和表也建成功了.有高人知道怎么解决吗?…

MySQL错误"Specified key was too long; max key length is 1000 bytes"的解决办法 经过查询才知道,是Mysql的字段设置的太长了,于是我把这两个字段的长度改了一下就好了.  建立索引时,数据库计算key的长度是累加所有Index用到的字段的char长度后再按下面比例乘起来不能超过限定的key长度1000:  latin1 = 1 byte = 1 character  uft8 = 3 byte = 1 character …

Specified key was too long; max key length is 767 bytes 此错误为hive 元数据mysql 字符集编码问题 如 show create table PARTITIONS ; utf-8会报上述错误. 要把CHARSET=utf-8 修改为 CHARSET=latin1: alter table PARTITIONS convert to character set latin1; 所以最好在hive 建库之初就设置好字符集编码 alter…

在使用quartz持久化的时候,笔者使用的mysql,为了以后方便迁移数据,笔者的Mysql默认引擎MyISAM 于是顺理成章的执行了quartz-2.2.3\docs\dbTables\tables_mysql.sql 这不数据库就开始报错了 [Err] 1071 - Specified key was too long; max key length is 1000 bytes 原始sql语句 CREATE TABLE QRTZ_JOB_DETAILS ( SCHED_NAME ) NOT…

2015-11-13 14:44:44,681 ERROR [main]: DataNucleus.Datastore (Log4JLogger.java:error(115)) - An exception was thrown while adding/validating class(es) : Specified key was too long; max key length is 1000 bytescom.mysql.jdbc.exceptions.jdbc4.MySQLSynta…

[文章来源]http://blog.csdn.net/cindy9902/article/details/6215769 MySQL: ERROR 1071 (42000): Specified key was too long; max key length is 767 bytes 今天测试遇到了这样的问题: MySQL> use test; create table test(a varchar(512) primary key, b varchar(1024)); Database ch…

在进行Hive集成Mysql作为元数据过程中.做全然部安装配置工作后.进入到hive模式,运行show databases.运行正常,接着运行show tables:时却报错. 关键错误信息例如以下: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Specified key was too long; max key length is 767 bytes) 详细操作信息例如以下: hive> show databases;…

今天在练习hive的操作时,在创建数据表时,遇到了异常 FAILED: Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.DDLTask. MetaException(message:javax.jdo.JDODataStoreException: An exception was thrown while adding/validating class(es) : Specified key was too l…

hive 安装完成后创建表的时候出现错误 NestedThrowablesStackTrace:com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Specified key was too long; max key length is 767 bytes at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect…