With such a small database it really boils down to just being tidy;
you don't want indexes you're not going to use.
Well the database is going to be like 200MB and executing several
hundred queries a minute. Thus my concern about speed. Is a P4 w/ 1GB
RAM going to choke and die, or will
I have a database I'm using for a MMORPG (well, it isn't very
MM because I'm something of a noob), and I have a few questions about
indexing. I am storing world data in a database. In order to keep
everything as swift as possible, I have indexed everything. And I
really mean,
I am using the Perl DBI to connect to a mySQL database. I am
using prepare and execute statements to send the query to the database
and then execute it. Is there any benefit to doing this versus using
do?
Thanks,
Dan
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Is it possible to SELECT the id (indexed PRIMARY KEY AUTO_INCREMENT) of
a row that was just inserted? I'm using PHP, I don't know if that makes
a difference?
Something like:
INSERT INTO foo (bar) VALUES (bar);
SELECT last_insert(id) FROM foo;
Also, are there any problems with using this in an
I am having a problem in one of my scripts and I need to use
transactions to fix it. When I looked it up on the mySQL documentation
I found:
If you are using transaction-safe tables (like InnoDB or BDB), you can
put MySQL into non-autocommit mode with the following command:
Does this mean that
is there a way to find out which host I am connected
from?
Does the solution have to be a function called within mySQL or would you
accept a function called by PHP or Perl?
-Dan
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Well you could:
(assuming an installation in /usr/local/mysql)
# /usr/local/mysql/bin/mysqld --user=mysql /usr/local/mysql/daemonlog
/usr/local/mysql/daemonerrorlog
But you should probably consult the manual under the installation for an
explanation of exactly what the above does.
-Dan
On
I believe I saw something in the mySQL manual about going with a 64 bit
system if it was an option because mySQL uses lots of 64 bit data
types. So you will see a significant increase in speed with 64 bits
versus 32. :: drools at though of Apple w/ 8GB RAM :: :-D
-Dan
On Sat, 2003-09-20 at
I am trying to make my PHP script autodetect when a table in a mySQL
database exists, and when it doesn't, create it.
Is there some way to do something like:
SELECT * FROM tables WHERE name = table_name;
And get a result I could test for truth, and thus run my script?
Thanks in advance,
Dan
I am creating a script which will grab a random row from a mySQL table.
Right now the way it is set up each time it calls COUNT(). I was
thinking of creating a script and running it as a cron job to update
count once every 10 minutes and store the number as an indexed array in
the table. It
Wasn't there just an announcement that 4.0.something was released?
-Dan
On Mon, 2003-09-15 at 12:52, Lenz Grimmer wrote:
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Hi,
MySQL 3.23.58, a new version of the popular Open Source/Free Software
Database, has been released. It is now
named only foo?
Thanks in Advance,
Dan Anderson
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I have created a BLOB field to store images. Is there any way to embed
them within HTML with something like:
image start: jpeg
/image
Thanks in advance,
Dan
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I think there is a way to insert binary image data in your html, but is
there any particular reason you need to do that?
Yes, my client's server is running with particularly restrictive PHP
safe mode settings and has informed me that dynamic images are a /must
have/. :: bangs head against
I am curious about the internal representation of VARCHARS. I cannot
find any documentation on it in the mySQL manual. Will a VARCHAR(10)
take up less space then a VARCHAR(80), even though they are variable?
Thanks in advance,
Dan
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I ran a search through the mySQL manual and google and could not find a
satisfactory answer. Does mySQL support the declaration of a boolean
data type? Currently I am using VARCHAR(6)s with either 'TRUE' or
'FALSE' and would like to cut down on the storage.
Thanks in advance,
Dan Anderson
why don't you use int(1) and set it to 0 or 1?
Storage space is an issue because I am designing a very large database
for a client. Every byte I save per row will translate into many many
megs. So if all I need is a single bit for true or false I want to get
as close to that single bit as
Are you trying to do this within a programming language? I use similar
queries using PHP and have no problem. Although I would write my query
like:
SELECT tbl_name FROM user_table WHERE user = 'guy';
And then use the result to run a select, update, insert, or whatever
-Dan
On Sun, 2003-07-13
Can anyone point me to a reference on how to insert images into a column
in a mySQL database -- or is that not possible?
Thanks in advance,
Dan Anderson
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couldn't you dump the database and then use the backup to reload the
database?
-dan
On Tue, 2003-07-08 at 13:58, Boris Villazon wrote:
Hi
I need to know if is there anyway to clone a existing database (structure and data)?
If yes, how can I do this? I looking for a SQL command.
Thanks
You're using Windows, so I can't make any promises because this is what
I'd do under *nix, but when I first set up mySQL if I type:
# mysql -h localhost -p
The password will be denied, because no password is needed. So I'd
type:
# mysql -h localhost
And get in. This is under the /root/, and
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