Table prefix is a string of alphanumeric characters prefixed to the name of the tables. XenForo developers have decided against the use of customizable table prefix and have hardcoded it as xf_.
MySQL
How to Fix ‘xf_session is marked as crashed and should be repaired’ Error In XenForo
An unexpected shut down of MySQL due to memory and xf_session table being frequently written is likely to crash and is the root cause of the issue.
How to Create MySQL Database For XenForo in Various Panels
CPanel and Plesk provide an easy to use front end option to create databases, create users and assign correct permissions to be able to use in XenForo.
How to Install XenForo 2 Forum – Complete Step by Step Screenshots
A detailed guide with screenshots for each step of the installation process of XenForo 2. It assumes you know how to upload content to the server via FTP using software like FileZilla.
How to Setup a Local (localhost) XenForo Site in XAMPP (With Pictures)
The complete step by step guide with pictures of every step to help install XenForo locally on localhost running on XAMPP.