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How Can i Connect More then one database

Damodhar
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#1: Mar 15 '08
hi

how can i connect more then one database in the same project.
Jerry Stuckle
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#2: Mar 15 '08

re: How Can i Connect More then one database


Damodhar wrote:
Quote:
hi
>
how can i connect more then one database in the same project.
>
Simple - just connect and save the result of the connection. This will
be a resource representing the connection; just use the appropriate
resource in all of your calls (virtually all database function calls
have an optional parameter being the connection resource).

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==================
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Jerry Stuckle
JDS Computer Training Corp.
jstucklex@attglobal.net
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Rik Wasmus
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#3: Mar 15 '08

re: How Can i Connect More then one database


On Sat, 15 Mar 2008 02:57:45 +0100, Jerry Stuckle
<jstucklex@attglobal.netwrote:
Quote:
Damodhar wrote:
Quote:
>hi
> how can i connect more then one database in the same project.
>>
>
Simple - just connect and save the result of the connection. This will
be a resource representing the connection; just use the appropriate
resource in all of your calls (virtually all database function calls
have an optional parameter being the connection resource).
Be aware though: of both databases are on the same database server, and
reachable with the same connection & user, it's often just more lucrative
to use full names for tables in queries, at least in case of MySQL.
--
Rik Wasmus
Dikkie Dik
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#4: Mar 15 '08

re: How Can i Connect More then one database


Be aware though: of both databases are on the same database server, and
Quote:
reachable with the same connection & user, it's often just more
lucrative to use full names for tables in queries, at least in case of
MySQL.
True. But there are other reasons for multiple connections. I often have
a separate connection to the same database for error logging (lazily
initiated, not open by default). This allows my error handling code to
log errors to a table, even if the main code does a transaction rollback
later.

Best reards.
Michael Fesser
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#5: Mar 16 '08

re: How Can i Connect More then one database


..oO(The Natural Philosopher)
Quote:
>Jerry Stuckle wrote:
>
Quote:
>Which means you're making multiple links to the database with the same
>credentials, wasting system resources.
>>
>All 1k bytes of them probably. Tsk Tsk.
"Too many connections" is a quite common error, especially on shared
hosts with a lot of poorly written user scripts.

Micha
The Natural Philosopher
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#6: Mar 16 '08

re: How Can i Connect More then one database


Michael Fesser wrote:
Quote:
.oO(The Natural Philosopher)
>
Quote:
>Jerry Stuckle wrote:
>>
Quote:
>>Which means you're making multiple links to the database with the same
>>credentials, wasting system resources.
>>>
>All 1k bytes of them probably. Tsk Tsk.
>
"Too many connections" is a quite common error, especially on shared
hosts with a lot of poorly written user scripts.
>
Micha
Or poorly tuned kernels..
jamesgoode
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#7: Mar 17 '08

re: How Can i Connect More then one database


On Mar 15, 12:33 am, Damodhar <damu...@gmail.comwrote:
Quote:
hi
>
how can i connect more then one database in the same project.
$connection = mysql_connect(normal params);
mysql_query(query, $connection);
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