Category: Ubuntu

How to reset a Magento password using Mysql Server

If you are unable to log in to your magento application? Follow the below steps to reset your magento store password from Mysql server. Step1: Select your database from the Mysqlserver. Step2: Find admin_user table from the selected database. Step3: In that table, edit the user which you want to reset their admin password. Step4: For security …

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Permanent link to this article: https://blog.openshell.in/2013/09/how-to-reset-a-magento-password-using-mysql-server/

How to Reset a WordPress Password from Mysql Server

Its essential thing to knowing, how to reset the wordpress password from Mysql server without following traditional method. Because your site may hacked, you may forgot your admin password and its email id to reset the password, you are no longer able to login into wordpress using login credentials. This method will very useful to …

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Permanent link to this article: https://blog.openshell.in/2013/09/how-to-reset-a-wordpress-password-from-mysql-server/

Find number of working days between two dates in Mysql

This which helps to find number of working days between two dates in Mysql. There is no specific or inbuilt function in mysql, For that we need to use the SQL query as below. [sql] SELECT 5 * ((DATEDIFF(@end_date, @start_date) ) DIV 7) + MID(‘0123455501234445012333450122234501101234000123450’, 7 * WEEKDAY(@start_date) + WEEKDAY(@end_date) + 1, 1) [/sql] For …

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Permanent link to this article: https://blog.openshell.in/2013/08/find-number-of-working-days-between-two-dates-in-mysql/

MySQL Error – SQL_BIG_SELECTS

While executing JOIN SQL query in live server, i got the following error. [code] The SELECT would examine more than MAX_JOIN_SIZE rows; check your WHERE and use SET SQL_BIG_SELECTS=1 or SET MAX_JOIN_SIZE=# if the SELECT is okay: [/code] To resolve this error, I have used the following SQL query before executing the JOIN SQL query. …

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Permanent link to this article: https://blog.openshell.in/2013/08/mysql-error-sql_big_selects/

How to remove dead node out of the Cassandra cluster?

This tutorial will helps you to remove unused / dead node from the cassandra cluster ring. Run the following command in console to list the cluster node ring formation. [code] nodetool -h <cluster-ip1> ring [/code] Results of the command it list details as like below: [code] Note: Ownership information does not include topology, please specify …

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Permanent link to this article: https://blog.openshell.in/2013/05/how-to-remove-dead-node-out-of-the-cassandra-cluster/

Mysql GROUP_CONCAT

MySQL has useful extention to the GROUP BY operation – function GROUP_CONCAT: GROUP_CONCAT(expr) – This function returns a string result with the concatenated non-NULL values from a group. Returns NULL when there are no non-NULL values. Where it can be useful? For example to get array without looping inside the code, In single SQL query …

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Permanent link to this article: https://blog.openshell.in/2013/05/mysql-group_concat/

Connect MS SQL Server with Rails

To connect MS SQL Server with Ruby on Rails follow the below steps: SQL Server (2005 or higher recommended) Install the adapters and driver [code] gem install tiny_tds gem install activerecord-sqlserver-adapter [/code] Ensure the activerecord adapter and db driver gems are defined in your Gemfile [code] gem ‘tiny_tds’ gem ‘activerecord-sqlserver-adapter’ [/code]

Permanent link to this article: https://blog.openshell.in/2013/04/connect-ms-sql-server-with-rails/

Unable to create rails application with sqlserver

Could not find “config/databases/sqlserver.yml” in any of your source paths. Your current source paths are: $HOME/.rvm/gems/ruby-1.9.3-p194@rails3tutorial2ndEd/gems/railties-3.2.8/lib/rails/generators/rails/app/templates Error: Template sqlserver.yml file missing. Solution: Need to update sqlserver.yml file in the specific location to fix this issue. Step1: Download sqlserver.yml configuration file. Step2: Extract the downloaded zip file. Step3: Copy extracted sqlserver.yml configuration file into the location which …

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Permanent link to this article: https://blog.openshell.in/2013/04/unable-to-create-rails-application-with-sqlserver/

YII – set default settings within module and controller

Which helps to overwrite default settings of module and controller. To set default controller, view, layout and theme. Set default controller within module [php] /** * @var string the default controller. */ public $defaultController = ‘controller_name’; [/php] To Set default layout, theme and views within controller, use the following commands. [php] /** * @var string …

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Permanent link to this article: https://blog.openshell.in/2013/04/yii-set-default-settings-within-module-and-controller/

Installing Django on Ubuntu

About Django: Django is a high-level Python Web framework that encourages rapid development and clean, pragmatic design. Developed by a fast-moving online-news operation, Django was designed to handle two challenges: the intensive deadlines of a newsroom and the stringent requirements of the experienced Web developers who wrote it. It lets you build high-performing, elegant Web …

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Permanent link to this article: https://blog.openshell.in/2013/03/installing-django-on-ubuntu/