[imp] database for imp.

[Marco Maiani]

Hi Mauro,

these are some answer from the Horde/IMP faq:

"Aside from the general Horde requirements, IMP 2.2 requires:
    * A database. As with Horde, this is ostensibly optional, but major 
functionality will be lost without a database and a database-enabled PHP, 
including address books and user preferences."

"2.3.6 Which database should I use?

The one you already have, of course!

Well, no, that's not exactly true. Horde supports a wide variety of 
database backends. The most stable databases to use with Horde and IMP are 
<http://www.mysql.com/>MySQL and <http://www.postgresql.org/>PostgreSQL. 
Since they are free (and Oracle, Informix and Sybase are not), they're the 
ones that get the most use by developers and by those installing IMP who 
don't already have a commercial RDBMS lying around. Choosing between MySQL 
and PostgreSQL is as much a religious issue as a technical one; MySQL was 
traditionally considered to be faster but at the expense of robustness and 
providing commercial-RDBMS features, while PostgreSQL was traditionally 
considered to suffer slightly in performance and ease of management while 
being more of an enterprise-class database. Recent versions of PostgreSQL 
and MySQL are probably of about the same performance. MySql is probably 
more popular however due to these historical circumstances and considerations.

Those of you with existing Oracle, Informix or Sybase installations will be 
happy to know that you can use them with IMP as well. The only disadvantage 
to that is that it might require a little more work to configure, simply 
because it hasn't been tested to the extent that the free databases have.


2.3.7 Can I run IMP without a database?

[IMP 2.2]: You can, by configuring PHPlib to use shared memory for 
sessions, but other database functionality such as preferences and non-LDAP 
contact lists will not be available. We strongly recommend using a database 
with IMP (and include everything you need for configuring the horde 
database once your database software is installed).

[IMP 3.x]: You can, by configuring php to use shared memory for sessions, 
but other database functionality such as persistent preferences will not be 
available. We strongly recommend using a database with IMP (and include 
everything you need for configuring the horde database once your database 
software is installed -- see the files in horde/scripts/db/)."


Marco

At 11.32 22/07/2003 +0200, Mauro wrote:
>Hallo.
>Tu use imp I must have to configure a database server?
>What is advisable to use?
>Mysql? Postgresql?
>Thank you.
>
>
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