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• Keeping up with New Releases

  - by Jeremy Smyth

  You can keep up with the latest developments in MySQL software in a number of ways, including various blogs and other channels. However, for the most correct (if somewhat dry and factual) information, you can go directly to the source.  Major Releases  For every major release, the MySQL docs team creates and maintains a…

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• Securing User Account Details with MySQL

  - by Antoinette O'Sullivan

  Keeping user account details secure is always at the forefront of a Database Administrator's mind. However, users want to get up and running as soon as possible without complex login procedures. You can learn more about this and many other topics in the MySQL for Database Administrator course. For example, MySQL 5.6.6 introduced a…

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• Mysql: ROLLBACK for multiple queries

  - by Raj

  Hi I have more than three MySql queiries in a PHP script triggered by scheduled task. If a query catch an error, script throw an exception and rollback that Mysql query. It works fine. However if first query works fine, but not 2nd query, throw an exception, it rollback 2nd one but not 1st query. I am using begin_trans(), commit and…

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• MySQL Workbench: Orphaned document changes detected

  - by Zishan

  Each time I open MySQL Workbench, I get this annoying message at the bottom of the screen saying "Orphaned document changes detected". It comes up whether I close all the SQL Editor workspaces or not. Dismissing the error doesn't help either. I did a Google search of the exact error message but it only yields four results. Anyone here…

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• mysql: unrecognized service ... but mysql is installed and it's working

  - by mojtaba zavar

  I'm trying to stop mysql and do some changes , then i'm going to start it again I'm using a SSH client . So i ran this 3 commends without any problem mysql mysql> SET GLOBAL innodb_fast_shutdown = 0; exit; now when i type service mysql stop or service mysql i get mysql: unrecognized service whats wrong ? my…

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• Does Ubuntu 11.10 include MySQL 5.5?

  - by Jiho Kang

  I was told that Ubuntu 11.10 comes with MySQL 5.5 but it doesn't show up in the cache search. Did it not make it in to the latest release? root@ubuntu:/etc# cat lsb-release DISTRIB_ID=Ubuntu DISTRIB_RELEASE=11.10 DISTRIB_CODENAME=oneiric DISTRIB_DESCRIPTION="Ubuntu 11.10" root@ubuntu:/etc# apt-cache search mysql-server…

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• Mysql stopped working

  - by tonymarschall

  Mysql is up and running on my system but i can not login with any user. I also cannot start/stop/status the server. All i got is: ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES) /usr/bin/mysqladmin: connect to server at 'localhost' failed error: 'Access denied for user…

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• error exporting data using mysql workbench

  - by Rajneesh Rana

  hi, i have been getting warning of version mismatch when i was trying to export data dump using mysql workbench. So, i copied mysqldump from mysql server folder and placed it in workbench folder. Now when i am trying to export data i am getting error Operation failed with exitcode -1073741819 here is…

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• Installing MySQL on Ubuntu Natty with Shell Script

  - by Obi Hill

  I'm trying to install MySQL on Ubuntu Natty from a shell script. However, I keep running into one major issue: when I try to define the password outside of the shell script. Below is the code to my shell script (which I have saved in /etc/init.d/install_mysql: export DEBIAN_FRONTEND=noninteractive echo…

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• Mac OS X, MySQL Preference Pane doesn't work

  - by Steve Kuo

  I downloaded and installed MySQL 5.1.47 for OS X 10.6 using the DMG archive: mysql-5.1.47-osx10.6-x86_64.dmg I also installed MySQL.prefPane and MySQLStartupItem.pkg. MySQL.prefPane is a Preference Pane. The problem is, whenever I attempt to start/stop MySQL from the Preference Pane, System Preferences…

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• Mysql not loading correctly

  - by mcondiff

  PHP 5.3.2 Apache 2.2.15 Mysql 5.1.X Windows XP SP3 I have now configured everything correctly but get a timeout when trying to connect to Mysql via PHP. So frustrated. I don't get an error message, the script just times out. I have made sure I have the correct paths. Fatal error: Maximum execution time…

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• MySQL replication hung after slave goes offline and comes back online again

  - by Ed Manet

  I have a master server and several slave servers replicating a single database. I am using in MySQL 5.0 in SLES 11. During fault tolerance testing I found that when the slave's network connection is broken (cable un-plugged) and then restored, replication hangs. It shows no errors and the slave…

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• Can't connect to local MySQL server through socket

  - by Martin

  I was trying to tune the performance of a running mysql-server by running this command: mysqld_safe --key_buffer_size=64M --table_cache=256 --sort_buffer_size=4M --read_buffer_size=1M & After this i'm unable to connect mysql from the server where mysql is running. I get this error: ERROR…

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• Problems in starting mysql server.

  - by Vineeth

  Hello all, I'm trying to start the mysql server on fedora 12. service mysqld start gives me an error: MySQL Daemon failed to start. Starting MySQL: [FAILED] More details [root@localhost mysql]# which mysql /usr/bin/mysql [root@localhost mysql]# mysql…

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• Percona MySQL 5.5 fails to start

  - by keymone

  trying to setup new server here but keep getting this in error log: mysqld_safe Starting mysqld daemon with databases from /data/mysql/myisam [Warning] Can't create test file /data/mysql/myisam/hostname.lower-test [Warning] Can't create test file /data/mysql/myisam/hostname.lower-test [Note]…

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• Mysql Fail to start

  - by John Naegle

  I'm running a Ubuntu 12.04 LTS Virtual Machine. Last week, the VM stopped unexpectedly now mysql will not start on the VM. These two events may be related, they may not be. When I try to connect: $ mysql ERROR 2002 (HY000): Can't connect to local MySQL server through socket…

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• Unknown MySQL server host - connection problem

  - by Zukas

  I am new to databases and I have been asked to look at a few tables and see how many records they have and some other information. I cannot access phpMyAdmin through cPanel, which is how I've always done it on my own server. I decided to download MySQL Workbench. I enter in all…

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• Updating PHP mySQL drivers when updating mySQL

  - by Richard

  I have apache, php, and mysql all installed from source. When I update mySQL to the latest version (5.1.46), do I need to update anything on the php side for it to be able to work with the new version? Many Thanks

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• MySQL cluster: Error after 1 data node is shutdown and started again

  - by nitins

  MySQL cluster: Error after 1 data node is shutdown and started again. We have configured MySQL cluster(version 7.1) with 2 sql/data nodes. We are using table space instead of in-memory clustering. The setup was working fine. So to test the setup I shutdown one data node,…

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• MySQL replication not working on leap day

  - by danneth

  Though out of my "core" knowledge I maintain a two-way replicated MySQL database (primary and backup). It's been working fine mostly. All changes are almost instantly replicated between the two servers. But now I've noticed something strange: I have a couple of cases…

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• Unable to restart MySQL server on CENTOS 6.5 x86_64 kvm – server (WHM/cPanel)

  - by Kevin S

  I am not able to restart MySQL server on CENTOS 6.5 x86_64 kvm – server (WHM/cPanel). I am getting following error while trying to restart the MySQL server. Waiting for mysql to restart...............finished. mysqld_safe (/bin/sh /usr/bin/mysqld_safe…

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• MySQL slave server not removing old relay binlogs

  - by MKzero

  I have a MySQL server with slave replication on another host. Today I stumbled across the high disk usage of the slave host and invastigated what takes up all the space. As it turns out this space is occupied by the slaves relay logs. I tried to turn…

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• SQL SERVER – How to Ignore Columnstore Index Usage in Query

  - by pinaldave

  Earlier I wrote about SQL SERVER – Fundamentals of Columnstore Index and very first question I received in email was as following. “We are using SQL Server 2012 CTP3 and so far so good. In our data warehouse solution we have created 1…

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• socket problem with MySQL

  - by Hristo

  This is a recent problem... MySQL was working and a couple of days ago I must have done something. I deleted MySQL and tried reinstalling using the .dmg file. The mysql.sock file never gets created and I get the following error messages: …

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• How to get decent MySQL driver perfomance in Ruby

  - by Zombies

  I notice that I am getting very poor performance for either or both inserts and queries. The queries themselves are basic and can execute with no delay directly from mysql. The ruby script that I wrote is only 1 thread, so only 1…

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