Database requirements
Minimum requirements for database version
MySQL
For eZ publish versions up to 3.8, MySQL 3.x is sufficient for non Unicode (UTF-8) sites. However, UTF-8 is recommended for which you need MySQL 4.1 or higher
For eZ publish versions f rom 3.9, MySQL 4.1 is the minimum if you want group based policied for content/read and content/edit.
How do I know which access privileges I have?
With MySQL, use the SHOW GRANTS statement.
With PostgreSQL, use pgsql's \z command.