1.增加一个字段alter table user表 add COLUMN new1字段 VARCHAR(20)   NOT NULL DEFAULT 0; //增加一个字段,VARCHERA 20 , 不为空,默认值是 0 //增加多个 alter table user表 add COLUMN new1字段 VARCHAR(20)   NOT NULL DEFAULT 0, add COLUMN new2字段 VARCHAR(20)   NOT NULL DEFAULT 0; alter tab

mysql中大数据表alter增加字段报错:"1034 Incorrect key file for table 'table_name'; try to repair it" 现象描述: mysql中大数据表执行alter增加字段时,/tmp的目录爆满,并且报错"1034 Incorrect key file for table 'table_name'; try to repair it". 故障分析: 1.查询MySQL官网得知: *“ALTER TABLE运

mysql主从复制报错解决方案 我先制造个错误 在slave删除个info3字段 然后在master 在info3插入数据 报错如下<pre> Last_SQL_Errno: 1054 Last_SQL_Error: Error 'Unknown column 'info3' in 'field list'' on query. Default database: 'test1'. Query: 'INSERT INTO `test1`.`wef` (`id`, `info1`, `info2

python 3.5.2安装mysql驱动报错 python 3.5.2安装mysql驱动时出现如下异常: [root@localhost www]# pip install mysql-connector-python Collecting mysql-connector-python Could not find a version that satisfies the requirement mysql-connector-python (from versions: ) No match

Loadrunner参数化连接oracle.mysql数据源报错及解决办法 (本人系统是Win7 64,  两位小伙伴因为是默认安装lr,安装在 最终参数化的时候,出现连接字符串无法自动加载出来: 最后通过安装在,问题到此解决 1.通过数据库连接参数化大量数据,电脑本地已经成功安装了数据库驱动,且本地可以配置数据源成功,在loadrunner 中配置数据源却找不到对应的数据库驱动. ----A:检查当前loadrunner工具的版本,是32位还是64位(目前还没有64位的),32位是不能安装64

今天连接mysql数据库报错如下: java.sql.SQLException: The server time zone value '�й���׼ʱ��' is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the serverTimezone configuration property) to use a more s

每天开机之后,启动MYSQL Notifier就报错,第一次出现重启电脑后解决,后面的几天老是出现,重启电脑好几次都没有解决,感觉很烦人,一定要搞定这个问题找到原因,于是有了下文....... 启动MYSQL 57报错信息"The service MYSQL57 failed the most recent status change request with the message time out has expired and the operation has not been comp

-------------------------------------------------------------------------------- mysql 备份报错mysqldump: [Warning] Using a password on the command line interface can be insecure. 备份某个表步骤如下 解决办法:修改my.ini配置添加以下语句 [mysqldump]user=root ----为备份用户名password=12

PHP+mysql系统报错:PHP message: PHP Warning:  Unknown: Failed to write session data (files) 故障现象,后台页面点击没有反应,也不报错 通过查看log文件,可以通过在nginx中单独定义错误日志文件,方便定位错误 /data/logs/www.aaasdk.com-error.log 报错信息: PHP message: PHP Warning:  Unknown: Failed to write session d

[root@uz6542 data]# /etc/init.d/mysqld startStarting MySQL... ERROR! The server quit without updating PID file (/usr/local/mysql/data/uz6542.pid). 查看mysql日志信息: mysql_install_db FATAL ERROR: Could not find ./bin/my_print_defaults 解决方法:初始化mysql /usr/lo

问题一: 因为装的是新系统,所以遇到mysql启动报错:无法启动此程序,因为计算机丢失MSVCP120.dll 后来参考这篇文章https://blog.csdn.net/huacode/article/details/79557871,完美的得到了解决,原来是电脑上缺乏Visual C++ Redistributable Packages for Visual Studio 2013,去微软官网下载一个即可 问题二: 查询报错: You must reset your password usi

插入一个很简单的sql语句时候,mysql一直报错: [SQL] INSERT INTO ORDER ( id, activity_id, order_type, phone, order_amount, order_state, pay_type)VALUES ( '4', '2121313', '1', '13552444989', '1', '1', '1' ) [Err] 1064 - You have an error in your SQL syntax; check the man

springboot连接MySQL运行报错: The server time zone value 'Öйú±ê׼ʱ¼ä' is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the serverTimezone configuration property) to use a more specifc time zon

mysql启动报错,与selinux相关 如果遇到报错,可能的情况是 selinux 的关系,可以安装 setroubleshoot-server 工具,使用 sealert -a /var/log/audit/audit.log 来查看是什么原因导致的 也可以在启动前关闭selinux,启动后再开启selinux,似乎会自动把selinux 文件标签给修改过来,, 设置selinux setenforce 0 # 临时关闭 selinux setenforce 1 # 开启 selinux g

数据库安装后无法访问,mysql重启报错: 或报错:MySQL is running but PID file could not be found 解决方法: 第一种方法:看磁盘是否已满:df –h 若已满,清理下垃圾文件 第二种方法:查看数据库运行状态 /etc/init.d/mysql status 提示ERROR! MySQL is running but PID file could not be found 1.ps aux |grep mysql 查看mysql进程 若看到如上内容

1.重置root密码 vi /etc/my.cnf 添加skip-grant-tables service mysqld restart 2.mysql 登录 报错1 Unknown system variable 'validate_password_policy' 报错2 命令行无法输入命令提示 You must reset your password using ALTER USER statement before executing this statement. 报错3 ERROR

ps -aux|grep mysql时候报错:Warning: bad syntax, perhaps a bogus '-'? See /usr/share/doc/procps-3.2.8/FAQ 解决办法,去掉-aux前面的“-”就好了. ps aux |grep mysql aux各选项的意思是: a-显示所有用户的进程 u-显示进程的用户和拥有者 x-显示不依附于终端的进程

mysql 启动报错信息如下: [root@xxx ~]# 2018-01-26 17:06:35 33 [Warning] Host name 'bogon' could not be resolved: Name or service not known 2018-01-26 17:06:36 33 [Warning] Host name 'bogon' could not be resolved: Name or service not known 2018-01-26 17:06:41

我是使用navicat的windows端 连接centos下mysql服务器 第一次常规连接mysql正常,idea启动服务连接mysql后 Navicat连接mysql就报错2013-Lost connection toMySQL server at 后来改为ssh发现正常连接 SSH连接mysql方式设置如下图

配置MySQL主从复制报错 ``` Last_IO_Error: Fatal error: The slave I/O thread stops because master and slave have equal MySQL server ids; these ids must be different for replication to work (or the --replicate-same-server-id option must be used on slave but thi

1.make报错现象 Warning: Bison executable not found in PATH 解决办法 yum -y install bison 2.make报错现象 ake Error at /usr/share/cmake-2.8/Modules/CMakeCXXInformation.cmake:17 (get_filename_component):get_filename_component called with incorrect number of argumen