(mysql.info) ansi-diff-views

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 1.9.5.6 Views
 .............
 
 Views (including updatable views) are implemented beginning with MySQL
 Server 5.0.1. See  views.
 
 Views are useful for allowing users to access a set of relations
 (tables) as if it were a single table, and limiting their access to
 just that. Views can also be used to restrict access to rows (a subset
 of a particular table). For access control to columns, you can also use
 the sophisticated privilege system in MySQL Server. See 
 privilege-system.
 
 In designing an implementation of views, our ambitious goal, as much as
 is possible within the confines of SQL, has been full compliance with
 `Codd's Rule #6' for relational database systems: `All views that are
 theoretically updatable, should in practice also be updatable.'
 

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(mysql.info) ansi-diff-foreign-keys

(mysql.info) differences-from-ansi

(mysql.info) ansi-diff-comments