Keep in mind the file system caches too, so it might be working, but the
file access is still getting put in memory. You should disable that too
if you really want consistent results.
In Linux you can dump the file system cache between each query, I have
no clue how to do it in windows or other
Hi,
I'm somewhat stumped by how to set up a single query that does the
following. Currently I'm accomplishing this through multiple queries and
some PHP 'glue' logic, but it should be possible in a single query I
think, and it's bugging me that I can't figure it out. If anyone has any
ideas,
Peter Brawley wrote:
Micah,
each item in `a` has a 1 to 1 relationship to `b`,
and each item in `c` has a 1 to 1 relationship with `b`.
Sometimes these correspond, i.e. there's a row in `b`
that relates to both `a` and `c`, but not always.
So in a given b row, the b_id value might match an
On 12/30/2008 11:57 AM, Manish Sinha wrote:
lists-mysql wrote:
in a *nix environment, restarting the mysql server is done with a
system-level command and requires *system* root privileges, not
something that the average db-admin is likely to have. also,
changing the port a service is
On 12/01/2008 08:30 AM, Andrej Kastrin wrote:
I have the table 'test' which includes two columns: 'study' and 'symbol':
study symbol
a2008 A
a2008 B
a2008 C
a2008 D
b2005 A
b2005 B
b2005 E
The task is to perform an intersection on 'name' column according to
all distinct values in
On 11/21/2008 07:55 AM, David Giragosian wrote:
On 11/21/08, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote:
I have a PHP application that accesses data from MySQL. There is table
called rooms, and table called beds. There is another table called
patients. Patients are being placed into beds,
On 11/22/2008 04:30 PM, Jujitsu Lizard wrote:
Summary: (a) Both approaches are quite good, and (b) the CPU efficiency
argument for stuffing prepared images into a table or similar may be weak.
The Lizard
By using pre-drawn images and HTML img tag calls you distribute the
processing to
On 11/22/2008 07:14 PM, Micah Stevens wrote:
On 11/22/2008 04:30 PM, Jujitsu Lizard wrote:
Summary: (a) Both approaches are quite good, and (b) the CPU efficiency
argument for stuffing prepared images into a table or similar may be weak.
The Lizard
By using pre-drawn images
Deleted rows.
On 11/17/2008 04:56 PM, sangprabv wrote:
Hi,
I just want to know what things that cause table/db overhead? Because I
have my tables always get overhead problem. And must run OPTIMIZE query
every morning. Is there any other solution? TIA.
Willy
--
MySQL General Mailing
There is little performance hit due to this. It would only start to
affect performance when the overhead started to increase to the point
that it was a significant percentage of the total table size. Perhaps
someone else can ring in here with real numbers but I'd say it'd have to
be 10-20% of your
I don't think this is indicative of a design issue. Some tables need
data removed more often than others, however Moon's Father brings up an
excellent point. If you CAN resolve this with a change in design, that
would be the best solution of course.
-Micah
On 11/17/2008 06:50 PM, Moon's Father
Select the UserId one less, and then ORDER ASC LIMIT 3.
Assuming your UserId's are sequential, it's easy, given userID X
SELECT * FROM Users WHERE UserId = X-1 ORDER BY UserId ASC LIMIT 3;
If they're not sequential due to deletions, etc, it becomes a bigger
problem. You could do a subquery, but
A working server relies on the MySQL binary, and system libraries, and
the hardware itself. From your description you don't address the library
compatibility. Have you ensured that your set of libraries is the same?
-Micah
On 10/29/2008 11:15 AM, Kevin Stevens wrote:
ello,
I am encountering
It's a package for Debian based systems, which include Ubuntu and a few
others..
It's like an RPM for Fedora/Redhat linux.
-Micah
On 10/27/2008 06:39 PM, Moon's Father wrote:
I'm sorry that if I can ask a question.What is DEB?
On Fri, Oct 3, 2008 at 9:49 PM, US Data Export
[EMAIL
On 09/23/2008 02:42 PM, Ben A.H. wrote:
I figured that was what you meant... I guess my table didn't work (see above
message...don't ya' love plaintext :-O)...
Has anyone ever tried to benchmark the difference between utilizing ENUMs
vs. traditional relational databasing? I would think ENUM
Did you try this?
SELECT
sum(fooditems.carb * mealitems.quantity) as sumcarbs,
sum(fooditems.gi * ((fooditems.carb * mealitems.quantity) /
sum(fooditems.carb * mealitems.quantity))),
sum(fooditems.gl * mealitems.quantity),
sum(fooditems.cal * mealitems.quantity)
There's probably a password set. Look up how to reset a password:
http://dev.mysql.com/doc/refman/5.0/en/resetting-permissions.html
On 08/25/2008 03:25 AM, Matthew Stuart wrote:
I have just loaded MySQL 5 and MySQL Front on to a new computer, and I
am now getting a MySQL-Error which is:
This is one of the few decisions the debian package maintainers made
that I disagree with, but the idea is that when you install mysql, there
is this user created with a random password. This gives the package
maintainers a way to script updates in SQL if necessary to run on the
database
On a dual boot it should work okay. I've done a similar thing, by taking
the data folder from a Linux installation, copying it to a local windows
computer and using a local install (same version of course) to read it.
It worked fine. I would think the scenario is much the same as what
you're
Look at the data files. The extension of the file will tell you.
On 11/21/2007 12:42 PM, Richard Edward Horner wrote:
Hey everybody,
Hopefully some of you are already enjoying time off. I am not...yet :)
Anyway, is there a way to determine what storage engine a table is
using if it's
I think you may be able to get around this by using multiple key
buffers? (MySQL 4.1 or later)
-Micah
On 05/15/2007 01:24 AM, Christoph Klünter wrote:
Hi List,
We have a mysql-Server with 8G of Ram. But mysql doesn't use this ram.
But we get following error:
May 14 22:56:11 sql
Fabian Köhler wrote:
Hello,
i have table with answers to questions. Every answer is a column in the table.
i.e.
id|q1|q2|q3
1|answer1|answer2|answer5
2|answer3|answer4|asnwer6
another option to save it would be sth like this:
id|field|value
1|q1|answer1
1|q2|answer2
1|q3|answer5
On 04/17/2007 04:18 AM, Fabian Köhler wrote:
Thanks for all the input. The problem i have with this idea:
Really? Wow, my opinion is that you're trying to do in one table what
you should do in two. Have a questions table, and an answers table. The
answers table would have a column
Yeah, in SQL:
RENAME DATABASE start_name TO new_name;
-Micah
On 04/12/2007 01:34 AM, Octavian Rasnita wrote:
Hi,
How can I rename a database if it contains InnoDB tables?
I have tried renaming the directory where it is located, but it
doesn't work this way.
Is there a method that works
It's just telling you how many queries per second on average the server
is receiving. This says nothing about how long it takes to execute a
particular query.
-Micah
On 04/06/2007 01:22 AM, C.R.Vegelin wrote:
Hi List,
Using printf( System status: %s\n, mysqli_stat($link));
in a PHP script,
I think you're approaching this from the wrong angle. You'll want to put
the data at the highest level at which it changes.
i.e. If every song on an album is always the same year, put it at the
album level, however, if it changes from song to song on a particular
album, then you want it at
Using ALTER statements would make it tough to get a complete view. I
would stick with your original idea. This would enable diffs to work
nicely, and the latest revision would contain everything you need to
know to create the database.
-Micah
On 04/01/2007 07:11 AM, Miles Thompson wrote:
On 04/01/2007 09:06 AM, Jonathan Horne wrote:
i have a production system running FreeBSD 6.2-p3/MySQL 5.0.33, with 2
databases. i also have a development box, which is pretty much a mirror of my
production system, that i would like to import my databases into. daily, the
production system
):
http://db.apache.org/ddlutils/ant/
Then you can store these ant scripts in your VCS (version control
system).
To create or destroy the schema with data just run an ant target and you
would be done.
Anoop
On 4/1/07, Micah Stevens [EMAIL PROTECTED] wrote:
Using ALTER statements would make
On 04/01/2007 03:28 PM, Anoop kumar V wrote:
Sql create statements need to be run using a compatible client.
sqlplus for
oracle, mysqlclient for mysql etc.. Here you just have a target as
part of
your routine build that also takes care of building / renewing your
database
with (or w/o) data.
Did you shut down the database when you backed up the data folder, or
was it running? Sounds like file corruption to me which can occur from
grabbing those data files while they're being used by the database.
If the table type is innoDB, I'm not much use, but if they're MyISAM,
the command
://www.softtools.com
-Original Message-
From: Micah Stevens [mailto:[EMAIL PROTECTED]
Sent: Sunday, March 25, 2007 9:23 PM
To: [EMAIL PROTECTED]; mysql@lists.mysql.com
Subject: Re: Sorting Problem
This doesn't work?
SELECT businesses.name from businesses
left join links using (businessID)
left join
group is a reserved word, so MySQL thinks you're attempting a 'group
by' statement. Put backticks around group, you should always quote your
table and column names.
DROP TABLE IF EXISTS `admission_quotes`;
CREATE TABLE `admission_quotes` (
`id` int(4) NOT NULL auto_increment,
`quote` text,
This doesn't work?
SELECT businesses.name from businesses
left join links using (businessID)
left join categories using (categoryID)
where category.name = 'something'
order by businesses.name ASC
On 03/25/2007 12:40 PM, Sid Price wrote:
Hello,
I have a MySQL database design that
This table size is based on your filesystem limits. This is a limit of
the OS, not MySQL.
-Micah
On 03/22/2007 01:02 PM, JP Hindin wrote:
Addendum;
On Thu, 22 Mar 2007, JP Hindin wrote:
Zero improvement. I used the following CREATE:
MAX_ROWS=10;
At first I thought
. If it was only that simple :)
On Thu, 22 Mar 2007, Micah Stevens wrote:
This table size is based on your filesystem limits. This is a limit of
the OS, not MySQL.
-Micah
On 03/22/2007 01:02 PM, JP Hindin wrote:
Addendum;
On Thu, 22 Mar 2007, JP Hindin wrote:
Zero improvement. I
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