Manual:Random page

A random page can be viewed via Special:Random. This uses the  function, which is capable of avoiding duplicate values for up to approximately 4,611,686,014,132,420,609 (i.e., ≈ $$(2^{31} - 1)^{2}$$ ) articles, and the  values from the  table. The  hook can be used to modify the selection criteria.

In, the RAND function is used to populate page_random.

By default, selection will be limited to pages from namespaces in . The user can choose which namespace to look in. For example, if they wanted to view a random file they could go to Special:Random/file. If they wanted to view a random mainspace page they could go to Special:Random/main, etc.

The file that implements this feature is .  (Special:RandomRedirect ) directs the user to a random redirect page (minus the second redirect). There is an array,, that allows for adding extra SQL statements to the query for selecting a random page from the database.