Folks,
A help needed. My manager's pushed me to optimize the tables that I
created in distributed in several DBs. I have tried best to explain to him
that I have followed the strict formula design to do the Join, Search and
so on. However, the system performance is not good enough yet when our
Try this:
SELECT RMAs.rma_id FROM RMAs, rma_line_items
WHERE TO_DAYS(date_settled) = 733274
AND RMAs.rma_id = rma_line_items.rma_id
GROUP BY RMAs.rma_id HAVING COUNT(*) 1
On Sep 10, 2007, at 11:36 PM, Mike Mannakee wrote:
I have two tables, one called RMAs and the other called
At 13:34 -0400 10/9/07, Baron Schwartz wrote:
Looks like you've found the solution you need. The only other
suggestion I have is to use UNION ALL if you don't need to eliminate
duplicate rows in the UNION, because there's some overhead for
checking for them.
Hi Baron
Thanks for this, and I
Hi all!
I need some help with ORDER BY in the following example. I want to order by
selected category, then by subcategories of the selected category, then by
categories with the same parent_id of the selected category, then by random
if possible, or random within the categories if possible, but
Given: MySQL 4.0.12, I need to implement a pageview log with a
resolution of 1 day.
I propose this table:
CREATE TABLE `pageviews` (
`id` int(11) NOT NULL auto_increment,
`date` date NOT NULL default '-00-00',
`url` char(120) NOT NULL default '',
`views` mediumint(9) NOT NULL
Hi ,
I think i might have hit a bug, posted on forums.mysql.com but
apparently nobody really reads that i think.
my table:
CREATE TABLE `clog` ( `cID` int(20) NOT NULL auto_increment, `lID`
int(10) default NULL, `ip` int(10) default NULL, `timestamp` int(11) NOT
NULL, PRIMARY KEY
W00ps forgot to update subject of my email,
WiNK / Rob wrote:
Hi ,
I think i might have hit a bug, posted on forums.mysql.com but
apparently nobody really reads that i think.
my table:
CREATE TABLE `clog` ( `cID` int(20) NOT NULL auto_increment, `lID`
int(10) default NULL, `ip` int(10)
Thing 1: your auto_increment key MUST be your primary key.
Thing 2: the timestamp field will be updated with the current epochal
timestamp which only increments every second.. as you have a
timestamp field as you primary (and therefore unique) key, you will
never be able to perform more than
Given: MySQL 4.0.12, I need to implement a pageview log with a
resolution of 1 day.
..
Would the REPLACE method work?
David
Hmmm...as I read the docs, the LOCK IN SHARED MODE seemed to be the
real key to this.
I created a test script and ran:
$ ab -n100 -c100
Fan, Wellington wrote:
Given: MySQL 4.0.12, I need to implement a pageview log with a
resolution of 1 day.
If you want to brute-force it, I think I would go this route:
create table hits (
day date not null primary key,
hitcount int unsigned not null,
);
insert ignore into hits(day,
Chris Hemmings wrote:
Baron Schwartz wrote:
Hi Chris,
Chris Hemmings wrote:
Dan Buettner wrote:
Chris, a couple of thoughts -
First, your index on the section is doing you no good (at this time)
since
all the values are the same. You may already know that, but thought
I'd
mention it.
Chris Hemmings wrote:
Chris Hemmings wrote:
Baron Schwartz wrote:
Hi Chris,
Chris Hemmings wrote:
Dan Buettner wrote:
Chris, a couple of thoughts -
First, your index on the section is doing you no good (at this
time) since
all the values are the same. You may already know that, but
The results of an EXPLAIN have a lot to do with the data which is
actually on the system. In this case, it seems to hinge on the
distribution of your 'price' attribute.. how many records on your
system? and what is the general distribution of the price attribute?
(how many distinct values)
On
Baron Schwartz wrote:
Chris Hemmings wrote:
Chris Hemmings wrote:
Baron Schwartz wrote:
Hi Chris,
Chris Hemmings wrote:
Dan Buettner wrote:
Chris, a couple of thoughts -
First, your index on the section is doing you no good (at this
time) since
all the values are the same. You may
also when it hits a dupl. and i skip the record, and continue slave it
hits another duplicate entry almost instantly, when i then drop the
table on the slave, and recreate it manually and set it to myisam at
that time, the slave continues without a problem.
On Tue, 2007-09-11 at 16:42 +0200,
Hi gang,
After reading through two years of 'how do I back up my database'
threads, I'm trying out the various backup mechanisms offered up.
I've read through these steps:
http://dev.mysql.com/doc/refman/5.0/en/innodb-backup.html
Running a local box and a remote box, both with Fedora 6,
Michael Dykman wrote:
if you see no errors, check your config... are you sure InnoDB is enabled ?
I can create a new database and add InnoDB tables to it without problems.
Ack, I lied. No error in the /var/lib/mysql, but there IS an error file
in /var/logs, and it contains:
./ibdata1:
Whil Hentzen wrote:
Michael Dykman wrote:
if you see no errors, check your config... are you sure InnoDB is
enabled ?
I can create a new database and add InnoDB tables to it without problems.
Ack, I lied. No error in the /var/lib/mysql, but there IS an error file
in /var/logs, and it
Baron Schwartz wrote:
Whil Hentzen wrote:
Michael Dykman wrote:
if you see no errors, check your config... are you sure InnoDB is
enabled ?
I can create a new database and add InnoDB tables to it without problems.
Ack, I lied. No error in the /var/lib/mysql, but there IS an error
file in
When I try to email to this list my email is reject with the following message?
Error: 552 Mail with no Date header not accepted here
My Mail has a date header in it...?
You should read up on the show status and show variables output.
That will give you a start as to perhaps some obvious issues. For
instances, your opened_tables and threads_created should not be
large. Using the right table types is also a very big issue, although
you may have gone down
Hailiang Ji wrote:
Folks,
A help needed. My manager's pushed me to optimize the tables that I
created in distributed in several DBs. I have tried best to explain to him
that I have followed the strict formula design to do the Join, Search and
so on. However, the system performance is not good
I have a server that has several hundred table in a few different databases
comprising almost a gig of data, all running on a rather old (3.23) version
of mysql. I have used the slow query log to identify queries and have
optimized the queries significantly. At this point the entries in the
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