A MySQL database stores information about subjects, studies, and analyses. The database needs to be set up either on a local computer, or on a server.
Install MySQL
Search for mysql community server, and download and run the installer. Choose a custom setup, and select the 64-bit MySQL server, the workbench, and the Connector/J.
This page contains installation and upgrade directions, and subpages below explain other actions.
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Upgrading from previous version
Sometimes prior versions can cause problems. It is best to export the database, uninstall the MySQL server and other components, and restart so the services are removed. You also want to Make a note of any MySQL users (other than root), as you may want to re-create these to ensure consistency.
Make sure you delete the MySQL data, which which is the MySQL folder under C:\ProgramData\ in Windows 7. The fodler folder is hidden, so you need to type it into the address line of Explorer.
If you upgraded without uninstalling, and had problems
You may You also need to delete servicesthe old MySQL or MySQL56 service, if it is running or present.
Command Prompt, Run As Administrator, sc delete "service name".
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Command Prompt, Run As Administrator, sc ??? "service name" to get PID; then taskkill /F /PID <the PID>
If you have trouble upgrading (there is one step where an old password is requested, which can be difficult to figure out), you should delete the MySQL data,