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Category: Database

Machform error: Cardinality violation: 1242 Subquery returns more than 1 row

14 September, 2021 Helge Mysql, PHP Leave a comment

We have a multiuser Machform PHP application running on a Redhat 7 Linux server with Apache webserver and MariaDB database.

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Mysql / Mariadb performance test

21 June, 2017 Helge Mysql Leave a comment

I have two different Linux servers, and wanted to test if one where faster than the other. I used mysqlslap

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Idle in transaction – DELETE waiting

31 August, 2015 Helge Apache, bash, Postgresql Leave a comment

We have a Linux server (Redhat Enterprise 6) running a multi-site installation of Mediawiki. In total, we have today 120

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Authenticate Postgresql client agains backend ldap

16 February, 2015 Helge Ldap, Postgresql Leave a comment

We have a Postgresql server open to many different people at our organization. In order to add a ldap authentication

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Open Journal System missing email logs

31 March, 2014 Helge bash, Postgresql Leave a comment

I upgraded our Open Journal Systems from 2.2.2 to 2.4.2 and afterwards we saw the email logs were gone. This

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Upgrade Moodle 2.2.1 to 2.6.2+

25 March, 2014 Admin Moodle, Mysql Leave a comment

I tried to upgrade Moodle 2.2.1 to 2.6.2+ and got this error message: Default exception handler: DDL sql execution error

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Postgresql 9.1 BACKUP DUMP BASH script

5 March, 2014 Helge bash, Database, Linux, Postgresql Leave a comment

We wrote an improved postgresql dump bash script for Postgresql version 9.1. This one will save each dump file with

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Recent Posts

  • Upgrading mariadb 5.5 to mariadb 10.6 to support moodle 3.11
  • Machform error: Cardinality violation: 1242 Subquery returns more than 1 row
  • Couldn’t connect remotely with mysql client (command line and phpMyAdmin) to the MariaDB server
  • Connect to windows remote desktop from linux mint
  • Get more details about an ip address

Recent Comments

  • Helge on Upgrading mariadb 5.5 to mariadb 10.6 to support moodle 3.11
  • Andrew on Upgrading mariadb 5.5 to mariadb 10.6 to support moodle 3.11
  • Helge on Analysing gigapixel images online is possible with Cytomine
  • Harsh on Analysing gigapixel images online is possible with Cytomine
  • Helge on Analysing gigapixel images online is possible with Cytomine

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Categories

  • Apache
  • bash
  • Cygwin
  • Database
  • Docs
  • Editor
  • Education
  • Email
  • Firewall
  • Git
  • Imap
  • Landscapes
  • Ldap
  • Linux
  • Mail
  • Me "blogging"
  • Mediawiki
  • Moodle
  • Mysql
  • Open source
  • Perl
  • PHP
  • Postgresql
  • Science
  • Technology
  • UiB
  • Uncategorized
  • Version control
  • Video
  • Virtual server
  • Windows
  • Wordpress
  • Wordpress plugin
  • zsh

Recent Comments

  • Helge on Upgrading mariadb 5.5 to mariadb 10.6 to support moodle 3.11
  • Andrew on Upgrading mariadb 5.5 to mariadb 10.6 to support moodle 3.11
  • Helge on Analysing gigapixel images online is possible with Cytomine
  • Harsh on Analysing gigapixel images online is possible with Cytomine
  • Helge on Analysing gigapixel images online is possible with Cytomine

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