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Spostare un database mysql – mariadb da un server windows ad un altro server windows

Installare xampp sul nuovo server.

Se acceso, spegnere mysql.

Nella cartella C:\xampp\mysql\data creare una nuova cartella, per esempio con il nome del database che state spostando.

Copiare in essa tutti i file dati (.frm, .ibd, .myd, .myi) dalla relativa cartella del vecchio server.

Copiare dal vecchio server nella stessa posizione del nuovo server, cioè nella cartella C:\xampp\mysql\data i file ib_logfile0, ib_logfile1, ibdata1

ate partire mysql. Aprite un prompt di dos, andate nella catella

cd C:\xampp\mysql\bin

mysql -u root -p

show databases;

Dovreste vedere il nuovo database aggiunto ai precedenti.

Aprire un altro prompt di dos e fate un check delle tabelle con i comandi

cd C:\xampp\mysql\bin

mysqlcheck -uroot -p VOSTRODATABASE

Aprite il browser e collegatevi a phpmyadmin con http://localhost/phpmyadmin

Dovreste vedere il database e le tabelle.

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WordPress on Azure: Error establishing a database connection

You have a WordPress site hosted on Microsoft Azure.Perhaps your site is part of a free or shared app service plan.

Trying to connect to the site, one day, you have this wordpress error message:  Error establishing a database connection

How to find out and solve the problem?

Connecting  to Microsoft Azure Service with FTP

First of all you have to connect to the site via ftp to understand where the error is. We can connect to Azure web application with FTP also. In the Overview section of the your Azure web application, select “Get publish profile”. It will download a file that has a lot of things and teh details about FTP username and password, which is constant and can be used for FTP connection.

Enable WordPress Debug Logging

You need FTP connection to  enable WordPress Debug Logging. To enable error logging in WordPress, you will have to make both of the following changes :

  1. In wwwroot directory, create a file named .user.ini Add the following line:log_errors=on
  2. In wwwroot directory, open wp-config.php
    Add the following lines  :

//Enable WP_DEBUG mode
define('WP_DEBUG', true);

//Enable Debug Logging to /wp-content/debug.log
define('WP_DEBUG_LOG', true);

//Supress errors and warnings to screen
define('WP_DEBUG_DISPLAY', false);

//Supress PHP errors to screen
ini_set('display_errors', 0);

Also comment the line :

    /* define('WP_DEBUG', false); */

Analyze the Log File

Try to load your site. Now, through ftp, you can enter in the directoy LogFiles and analyze the file


Database error

Perhaps you have a database error, for example a duplicate key problem. On azure, in your app service, select Mysql In -app button. On the top of the section, you can see the Manage button. Click on the button and you’ll load the phpMyAdmin portal on your local Mysql DB.

Duplicate entry

If you have this kind of error : Duplicate entry ‘XXXXX’ for key ‘PRIMARY’ for the  query INSERT INTO `table_name`, just ran following command :

REPAIR TABLE table_name

That’s it! It was done.