Help Rewriting A Slow Phpbb Query

PhpBB Slow Loading
my site runs quickly except when a user hits forum (allready signed in or logging in) to login to the forums it takes 10x as long to get to the forums as it does the rest of the site, once in the forums its ok and runs as normal,is there any settings in SQL that can speed this up? or is there another problem.

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Rewriting A Query Without A Sub Query
I've recently changed hosts and found that some of my code broke. The new host is using mysql version 4.0.25 which does not support sub-queries (and they won't upgrade). I'm trying to figure out how to rewrite the following query so it will work on 4.0.25 but not getting anywhere.....

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MySQL Query For PhpBB
i want to display 5-10 latest phpBB2 posts on my homepage, and i know there are mods for the forum's index page that do similar thing, but i want to do it in my Perl script. I know how to connect to mySQL DB, but I don't know SQL..
could someone help me with mySQL query for X latest posts, so I would get the result containing user name, post topic, post date&time and post text?

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MySQL Query Linking OpenCrypt & PhpBB
I understand that this will seem very novice to you all as developers, but I really need some expert eyes on my question because frankly the other forums have offered no real assistance.

I have a customer database system called OpenCrypt installed and running on my website. OpenCrypt has built in features to connect to my mySQL database as to create phpBB accounts similtaneously as general website accounts are created on my website!

Now. I am new to mySQL and am working on getting the correct syntax to work with my phpBB database. The following are my current fields in question:

user_id -> I need these id's to be created sequentially when new rows are added to my table, phpbb_users.

user_regdate -> What date parameters does phpBB read?

Thanks for your help! This is my current simple syntax used to similtaneously add phpBB rows to the table, where %variable% refers to my OpenCrypt fields:

INSERT INTO kylebt_Forums.phpbb_users SET `username` = '%username', `user_password`=MD5('%password%'), `user_email`='%email%'

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Slow Query
i have this query on a website/webapp that has expanded beyond all expectation. It now takes nearly 30secs to return results from the database

SELECT cl_t.Client_ID, Buyer_1_Title, Buyer_1_Prename,
Buyer_1_Surname, Tel_No, Mob_No, Buyer_2_Title,
Buyer_2_Prename, Buyer_2_Surname, Email_Add,
Price_Max, MAX(activity_t.Date) AS lastcomm
FROM cl_t
INNER JOIN cl_want_t
ON cl_t.Client_ID = cl_want_t.Client_ID
AND Agency_Code ='$agencyloggedincode'
AND Deleted = 'N'
LEFT JOIN activity_t
ON Buy_Sell = 'B'
AND Ref_No = cl_t.Client_ID
WHERE cl_t.Sales_Agent_ID = $agentid
GROUP BY cl_t.Client_ID
ORDER BY $order
The problem is the call to MAX(activity_t.Date) AS lastcomm

activity_t holds all known contact with all known clients and as such is a very large table, the call to search through all of these records and return only the date of the last entry for this client is taking the time. If I remove this from the query I get results in 3 seconds.

I have indexing on activity_t.Date & activity_t.Ref_No

Question, is there a way of doing this quicker within the table I already have, or should I create another table that just holds the last update date for each client, and get the date from this much smaller table.

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Why Is This Query Too Slow?
I find this query to be exceptionally slow(around 2.5 seconds), could some tell me why this is so?

MySQL
SELECT st.profile_views,count( DISTINCT p.ID ) news_submitted, count( DISTINCT pv.ID ) news_voted, count( DISTINCT pcom.ID ) news_commented, u.joined, u.weight FROM users u LEFT JOIN posts p ON p.submitted_user_id = u.user_id LEFT JOIN post_votes pv ON pv.user_id = u.user_id LEFT JOIN post_comments pcom ON pcom.user_id = u.user_id LEFT JOIN stats st ON st.user_id=u.user_id WHERE u.user_id='john' GROUP BY u.user_id
I traced the cause to this line
count( DISTINCT p.ID ) news_submitted (from LEFT JOIN posts p ON p.submitted_user_id=u.user_id)
But when i execute something like this

MySQL
SELECT count( DISTINCT p.ID ) news_submitted FROM posts WHERE submitted_user_id='john'
it is quite fast (around 0.03 seconds)
So why does it slow down when i'm joining the above query with 3 other tables ?
Should i use INTEGER for user_id instead of string like 'john'?

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Slow Query Log
my slow log is catching a slow query, however the timestamp for the query is "0". I also placed a timestamp on the query to echo out to the results page, and it is about 4 thousands of a second. Why is it showing in the slow log?

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Slow Query Using NOT IN
I am migrating a MSSQL server to MySQL. I know the following SQL is valid for both servers, but MSSQL finishes execution of the query almost instantly, and MySQL has been running the query for the past ten minutes and still is not finished. There is basically the same amount of data in each database. Does anyone know ....

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Slow Query
I have a query that is running really slow !!!!
I have joined on Key fields and indexed the tables fully but it is still solw.
--------------------------------------------

select d.id, a.signed, u.Forename, u.Surname, d.paid, p.date, d.payment, p.amount, d.acctual
from details d
join poten a
on a.id = d.id
left join recieved p
on d.id = p.id
left join users u
on a.signed = u.userid
where d.paid > '01-Dec-2005'
and d.authorrceived is not null
and d.authorrefused is null
and ((d.payment starting 'E' or
d.payment starting 'e') or
(d.payment starting 'Q' or
d.payment starting 'q' and
p.target = '500'))
order by d.paid, a.signed, d.id

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Slow Update Query
I have about 2000 update queries to do, which takes about 1 hr on 250,000 rows.
My table is getting kinda slow here is the query i am using
UPDATE nametable SET
sectionname = replace(sectionname,'".$oldsec."','".$sec."'),
categoryname = replace(categoryname,'".$oldcat."','".$cat."'), published=Ƈ'
where sectionname='".$oldsec."'
and categoryname='".$oldcat."' ;

I am wondering if the same thing is possible with an insert... on duplicate key statement?

I cant seem to get the insert statement to work, but not even sure whether it is appropriate.

With this query I am basically finding and replacing some columns based upon another table (within the php script I am using)

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Slow Query Log Files
I have edited my.ini file to create a file called slow queries. My problem is that when the server starts up i do not get a full list of all slow queries. Is there anything else i need to change? How else can i come about in getting all queries that took a long time to execute? im using mySQL 5.0.9.

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Slow Query Log Not Staying On
I'm running MySQL 4.0.16 on Windows 2003. I just added the mysqld-nt
command line option to enable the slow query log, started MySQL, and the
option showed up as turned on. Then later I restarted the server, and the
slow query log option went back to being turned off. Is this a Windows
problem in not remembering the service parameter? Has anyone else seen
this?

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View Slow Query Log
I searched here, google and MySQL docs but did not find an answer.
I'm using MySQL-Front from a Windows platform to administer a remote database. The remote server doesn't have phpMyAdmin or anything like that.
MySQL-Front reports 133 Slow Queries and an average of 15 queries per second. But I dont' know how get more information than that.

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Query With 3.3million Rows Is Slow?
I'm not that great with MySQL...so I was hoping someone could help me out.
The query I'm running is too slow...can anyone tell me what I can do to
speed it up..if I can at all? I was wondering if because ZipListMatrix has
3.3 million rows that 8 seconds is all the faster it's going to be. Any
help is greatly appreciated! I have already "optimized" the tables.

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Can't Turn On Slow Query Logging
long_query_time = 1
log-slow-queries = /var/lib/mysql/slow_queries.log
Is the above syntax not correct for enabling slow query logging? All examples I've seen have the dashes in the second variable and underscores in the first.

When I restart MySQL with those lines in my.cnf, it fails to start, but writes nothing to its error log.
/var/lib/mysql/slow_queries.log exists, is owned by mysql, and has read/write permission.

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Turning On Slow Query Logging?
Background: I paid a young admin set me up on a database server. He installed the basic I needed for the server...at my request...No Cpanel...mysql and apache and some tight security w/o even a domain name to SSH into. Unfortunately, he's a busy kid, and teens sometimes don't realize that people depend on them...and well, I can't really seem to get him to do much so I gave up and figured it's a good way to force me to learn all this myself...
Well anyway, now I want to turn on Slow Query logging. But before I do that, I need to know how MySQL is running. Is SQLogging turned on already? Where is it logging to? So first thing I want to look up is, when the server is rebooted, what's the command to restart mysql? No clue. How do I change the setting? And of course, the server is production, so when I make the change, it needs to be quick, it needs to be smooth, and I need to be able to roll back to the previous config if necessary.
I'm running Redhat Enterprise.

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Slow Query W/ Join & Ordering
I am trying to figure out why I have a hugely slow query (~2 seconds in my testing environment). Details are below:

It involves two tables, products and vendors.

Products is a huge table, so I will only include the (ostensibly!) relevant fields in its description:

CREATE TABLE `products` (
`id` int(11) NOT NULL auto_increment,
`vendor_id` smallint(6) NOT NULL default Ɔ',
`product_code` varchar(255) NOT NULL default '',
`internal_name` varchar(255) NOT NULL default '',
`lastmodified` timestamp NOT NULL default CURRENT_TIMESTAMP on update CURRENT_TIMESTAMP,

PRIMARY KEY (`id`),
UNIQUE KEY `product_code` (`product_code`),
KEY `vendor_id` (`vendor_id`)
) ENGINE=MyISAM;
Vendors are much more straightforward:



CREATE TABLE `vendors` (
`id` smallint(6) NOT NULL auto_increment,
`name` varchar(255) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM;
The following query executes in no MORE than 0.01 seconds:


SELECT DISTINCT p.id
, p.product_code
, unix_timestamp(p.lastmodified) as lastmodified
, p.internal_name
FROM products as p
ORDER BY p.product_code ASC
LIMIT 0, 30;
And has the following attributes:

+----+-------------+-------+-------+---------------+--------------+---------+------+-------+-----------------+
| id | select_type | table | type | possible_keys | key | key_len | ref | rows | Extra |
+----+-------------+-------+-------+---------------+--------------+---------+------+-------+-----------------+
| 1 | SIMPLE | p | index | NULL | product_code | 257 | NULL | 25124 | Using temporary |
+----+-------------+-------+-------+---------------+--------------+---------+------+-------+-----------------+
When I join with the vendors table, so that I can fetch the vendor's name for each product, I use the following query, which takes about 1.88 seconds:



SELECT DISTINCT p.id
, p.product_code
, unix_timestamp(p.lastmodified) as lastmodified
, p.internal_name
, v.name as vendor_name
FROM products as p
LEFT JOIN vendors as v ON v.id=p.vendor_id
ORDER BY p.product_code ASC
LIMIT 0, 30;
It has the following characteristics:

+----+-------------+-------+--------+---------------+---------+---------+--------------------------+-------+---------------------------------+
| id | select_type | table | type | possible_keys | key | key_len | ref | rows | Extra |
+----+-------------+-------+--------+---------------+---------+---------+--------------------------+-------+---------------------------------+
| 1 | SIMPLE | p | ALL | NULL | NULL | NULL | NULL | 25124 | Using temporary; Using filesort |
| 1 | SIMPLE | v | eq_ref | PRIMARY | PRIMARY | 2 | te_inventory.p.vendor_id | 1 | |
+----+-------------+-------+--------+---------------+---------+---------+--------------------------+-------+---------------------------------+
Note the addition of the filesort. I'm unhappy enough about the temporary, which I don't really understand, but the filesort is, I'm fairly sure, killing me.

Closer investigation (or maybe just common sense if you aren't a MySQL newbie like me) shows that the ORDER BY clause is responsible, for when I join without the ORDER BY, my query time goes back down to 0.01 seconds or so:



mysql> explain SELECT DISTINCT p.id
-> , p.product_code
-> , unix_timestamp(p.lastmodified) as lastmodified
-> , p.internal_name
-> , v.name as vendor_name
-> FROM products as p
-> LEFT JOIN vendors as v ON v.id=p.vendor_id
-> LIMIT 0,30;
+----+-------------+-------+--------+---------------+---------+---------+--------------------------+-------+-----------------+
| id | select_type | table | type | possible_keys | key | key_len | ref | rows | Extra |
+----+-------------+-------+--------+---------------+---------+---------+--------------------------+-------+-----------------+
| 1 | SIMPLE | p | ALL | NULL | NULL | NULL | NULL | 25124 | Using temporary |
| 1 | SIMPLE | v | eq_ref | PRIMARY | PRIMARY | 2 | te_inventory.p.vendor_id | 1 | |
+----+-------------+-------+--------+---------------+---------+---------+--------------------------+-------+-----------------+
Any clues on how I can get the execution time to go down when I am sorting? I'm also curious why MySQL is using a temporary table,

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Mysql 5.0 - Using My.cnf - Unix / Slow-query-log
I installed mysql 5.0 and need to set up slow-query-log and other logging options.

Here is what I did. But I dont see it working yet.

1. cd /var/db/mysql
2. chown mysql slowquery.log
3. touch /usr/local/etc/my.cnf
4. chown mysql /usr/local/etc/my.cnf

vi my.cnf

[mysqld_safe]
-u mysql
--log-slow-queries=/var/db/mysql/slowquery.log

so now when I type:

mysqladmin shutdown
and than

mysqld_safe &
my sql restarts but the log files are not being used.
also - how do I know if my my.cnf is being used at all?

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Federated Tables Slow? (like 4.5 Hrs For A Query)
I've got a problem with federated tables. I'm using MySQL 5.1 (with InnoDB as the default table type) on a Win2K server, on which I've got four federated tables pointing at four MyISAM tables on a MySQL 4.1.11 server. Of the four tables, three of them run just fine, and I can retrieve data quickly with no problems. The fourth is a sheer pig. While they have different columns, all four tables are roughly as complex as each other, all having the same features and developed by the same team.

The most obvious difference, and what I suspect might be the problem, is that the first three tables have between 150 and 1,000 records, the fourth table has closer to 15,000. Still, there isn't that much lag when I'm pulling from the smaller tables, and the lag is really serious when I'm pulling from the larger one; I ran three queries last night to test, and I could pull data from the smaller tables in about 5 minutes, but the larger table took 4.5 hours- possibly because it was joined with two other tables, but the joins on the smaller tables didn't cause this kind of problem.

The second obvious difference is the fact that I'm pulling from a MyISAM table into a federated table... from which I would like to store into an InnoDB table, but it ends up timing out quite a bit.

Connecting to the database I've federated to isn't a problem. It responds to a PHP frontend lightning-fast. It's just my federated tables that suck so bad. I wouldn't even use federated tables, but I need to pull from the MyISAM database for storing historical records of inventory. What am I doing wrong, and what can I do to speed things up?

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Slow Inefficent Query (FIXED)
I have this query which pulls members from a table of 1200 members details, filtering out those without and email address and those that don't want Newsletters, and also any whose email address exists in a second table (emails that have hard bounced previously)

My first attempt took an age and returned about 10,000 members, clearly loads of repeated rows

My 'final' attempt with a DISTINCT shoved in works perfectly but is really slow, PHPAdmin says it takes 1.1s but on the website the data doesn't appear for over 30s, all the other sundry queries on the same table work nice and quick on the same website using the same php to generate the table of results

The googling I've done suggests (to me) that there's nothing wrong with the query but I suspect that there's far too much checking of fields going on from the pre DISTINCT query's results ....

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VER VERY VERY Slow MySQL Query HELP URGENTLY NEEDED
I have the following MySQL query, but it is VERY VERY slow and seems to be crashing the server. There are 300,000+ records in the 'tracker' table.

SELECT sites.*, SUM(if(tracker.type='view',1,0)) AS numberOfViews, SUM(if(tracker.type='click',1,0)) AS numberOfClicks, SUM(tracker.revenue) AS totalRevenue FROM sites LEFT JOIN tracker ON tracker.site_id = sites.id GROUP BY sites.id ORDER BY sites.domain_name

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Why Does The Slow Query Log Show More Rows Than Exist?
# Time: 070528 17:14:57
# User@Host: counter[counter] @ localhost []
# Query_time: 3 Lock_time: 0 Rows_sent: 7 Rows_examined: 120647
SELECT SQL_CACHE `webpageUrl`, `webpageName`, COUNT(*) AS `count`, (COUNT(*) / (SELECT COUNT(*) FROM _1_log)) AS `pct` FROM _1_log GROUP BY `webpageUrl` ORDER BY `count` DESC LIMIT 7;

mysql> select count(*) from _1_log;
+----------+
| count(*) |
+----------+
| 111824 |
+----------+
1 row in set (0.00 sec)

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Large Table, Slow Query Question
I have a table with ~800,000 records. I need to grab random rows from the table based on certain criteria. The problem is that average lowest subset to grab the random row is around 200k. Here is what I'm trying to do:

There are 4 columns: data,n1,n2, and n3. I need to get the value of the data column based on criteria using the n1-n3 columns.

The most common query is SELECT data FROM table WHERE n1 = ?

The problem is that n1 can be only 1 of 5 possiblities. When the table is finished being populated there will be roughly 1.5 million records and 250k for each value of n1. Of course, I have an index on each n column.

Right now with just the 800k records it can take over a second, sometimes multiple seconds to run the following in order to get a random row from that subset:

SELECT COUNT(1) AS total FROM table WHERE n1 = 3;
index = random number from 1 to total
SELECT data FROM table WHERE n1 = 3 LIMIT index,1;

How can I speed this up? I need it to take less than half a second if possible. Thank you.

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Slow Execution For A Left Outer Join Query
Whats likely to be the cause of slow execution for a left outer join query?

The original query joins three tables but even if I narrow it down to one it still takes a long time to execute.

$query = "select distinct materials.* from materials";
$query .= " left outer join materials_products on materials.material_id = materials_products.material_id";

There's 914 rows in the materials table and 1348 row in the materials_products table

Is it likely to take a long time for this amount of data or is there likely to be a problem in the table(s) set up or query?

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Phpbb
I am trying to set up PHPbb on my website using MySql 4.1 for my forums and I can't figure out how to create a new database and connect the database to the actual site and also I need to locate my:

1 database name
2 username
3 password

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Phpbb With Mysql
Im going to uss phpbb as my forums but i dont have a clue where to get started. I know i have to create a database with mysql so it can connect, but i need help on how to start the database what should i put in it etc. I think i can use phpadmin, if i'm right. My host provides me with sql database and sql. Can any please help so i can get this working.

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PHPBB Forums
I have MySQL 4.0 installed on my computer. I tried to install the PHPBB forums and set it to MYSQL 4.0, but i dont know a valid host name, or database name, database username, and password. How can i figure these things out.

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MySQL With PHPbb?
Is it enough to just install mySQL on the webbserver for the phpbb-forum to work? Or do I have to create my own database-files with predefined tables too?

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How To Read Phpbb
php file is loaded as codes on windows, but when u upload it on web u get the codes showed as image and stuff, so my question is, when using local host (windows xp) what prog or how i can see the php files not as codes/source when opening but as image or table or whatever.

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Phpbb And Firefox
I am developping a forum using phpbb 2.0.17 (the lastest version). My forum url is www.qnhl.com. The problem is the following:
When you make a new post in a specific forum, this forum should show the "new post" icon instead of the "no new post" one.

But it's not the case in Mozilla firefox. The "no new post" is always there. What's the problem? Anything related with cookies? Note that I don't have this problem with Internet Explorer.

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Phpbb Forum
I'm experiencing some problems trying to get my phpbb forum to work with mysql. I'm running the newest version of apache, and php is installed and working, but I'm not quite sure about what I have to do with the MySQL database part to get it working. If anyone knows of any tutorials or anything I would be grateful
Just for reference: I'm a newb when it comes to both php, and MySQL.

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Phpbb: Username Already Taken After Deleting
I tested to delete phpbb user where user_post = 0.
After deletion, the query exe as normal.
But when I start to register, the phpBB immediately shows

Sorry, but the username is already taken.

instead of showing registeration form.

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PHPBB Can't Connect To Database
So i'm running Apache, PHP, and MySQL 4.x/5.x (i've attempted both) on Win2k.
When i try to install phpBB2 it says it can't connect to the database

Connection to database
You have not established a connection to MySQL 4.x.
ERROR: Access denied for user 'ODBC'@'localhost' (using password: NO)

Your database was not found.
ERROR: Access denied for user 'ODBC'@'localhost' (using password: NO)

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Editing Not Working In PhpBB
After transfering my forum from one server to another, editing stopped working. You can go to phpBB's edit link, but when you try to edit the post nothing is changed. Topic titles can be edited, but nothing else can (including uploaded files with the attachment MOD).

If I edit it directly from phpMyAdmin it will work fine, but editing through the forum does nothing. On the last server it worked fine, although I'm pretty sure on my last server I was running on an older version of MySQL (3.x). On my new host (globat) I'm on MySQL 4.1.Nothing was changed in phpBB's scripts since the transfer, so nothing would have taken away the ability to edit post text. If anybody knows what is stopping these things I would greatly appreciate the help, since I've been looking for a solution for quite some time now.

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Seprate Database For PHPBB
I have a databse for the main website that will contain ~15 tables.
Are there any advantages/disadvantages to merging and seprating and what is generally the best way to go?
I'm also interested to hear about (other) situations in wich you would choose for an additional database to increase my insight in the subject.

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Mysql Login Error For Phpbb.
what i am used to do, if i have to select more rows by their id's i write

"SELECT * FROM table1 WHERE id IN (1,2,3,4,5)"

how can i do this via Execution in adodb (http://phplens.com/adodb/) ?

if i pass array, adodb starts complaining, if i implode it, it adds quotes around the string... any help?

$ado -> Execute("select * from table1 where id IN (?)", array(array(1,2,3,4,5)) ) //this does not work:(

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Tables Import PhpBB/phpNuke
My existing site is ok but limited and I'm now at the point where I would like to use a CMS, but I want to import all the old sites membership and comments into the new install.

I HAVE A SCRIPT THAT WILL DO THIS called. phpbb_nuke_conv.tar should anyone else ask.

but for this to happen the phpBB data must be in the same database where the nuke data resides, ie moving the phpBB tables over to the nuke SQL database. The prefixes are different so there no problems there, could someone please point set-by-step for this proceedure.

I'm sure it only a few buttons and it would save me an ENOURMOUS amount of time reading about a subject I would rather not.

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Help With MYSQL And PHPBB On Server 2003 Standard
Trying to get help with this situation. I have installed PHPBB, PHP (4X) and
MySQL 4.1.

This is how I started out.

1. Installed MYSQL - ran setup - did FULL install - and entered in new
password when requested. MYSQL gave the green light when computer rebooted.
Created new database with CREATE DATABASE XXX; Also installed ODBC from
MYSQL site and created a "SITE DSN" for the ODBC

2. Installed PHP and verfied working and accessible

3. Installed PHPBB per the instructions on the site. Did the permissions as
instructed on config.php and install.php

4. Came to the install screen. Entered the info and password that I did with
MYSQL installation (Root was the username)

NOW SAYS - CANNOT CONNECT TO THE DATABASE. I do not know what to do at this
point.

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A Seprate Database For PHPBB Or Merge The Tables With The Site?
I have a databse for the main website that will contain ~15 tables. Are there advantages/disadvantages to merging the phpBB tables with the one from the site or seprating the tables sets in 2 different databases?

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Making Site Login Add Users To Phpbb Database Table
I have a login script for my site that I got off the net and was planning to use, but, I also wanted to make it so that when a user signed up thru the registration form it would also add them to the phpbb database's table. It wasn't discussed heavily from where i got the script but from what was mentioned the encryptions differ which results in a rejected login. Code:

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Slow
What generally would be the reason why all my db driven sites are running slowly or even hanging. I am on braodband speed but just changed hosts.

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Slow Authentication
MySQL V 5.0.18 on SUSE 10.1

I'm not a complete *nix noob, but I sure as hell ain't a *nix or MySQL pro.

This is a new installation. Everything screaming fast. Unless it deals w/authentication.

Try to get in w/SQLyog from W2K locally ... intitial connection takes ~20 seconds. Then everything screaming fast.

Web Server (W03) attempts to connect via MyODBC ... same result ... initial connection takes ~20 seconds. Subsequent queries screaming fast.

VNC into the box at any time ... everything fast. (would seem to eliminate network/connection issues)

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Slow Subselect
I've got two tables:
lo_users: nickname|id|...
lo_friends: from|to|...

The following query takes < 0.01 sec:
SELECT IF(`from` = '10855', `to`, `from`) userid FROM lo_friends WHERE (`from` = '10855' OR `to` = '10855') AND STATUS = '1'

...but if I use it in a subselect, the whole thing takes about 0.54 sec:
SELECT u.nickname FROM (SELECT IF(`from` = '10855', `to`, `from`) userid FROM lo_friends WHERE (`from` = '10855' OR `to` = '10855') AND STATUS = '1') f LEFT JOIN lo_users u ON u.id = f.userid

What can I do to make the query faster? "from" and "to" are indexed and lo_users.id is the primary key.

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Update Too Slow
I need to update 25 * 5000 records, if I do one at the time it takes too
long time, do any one have a good proposal ?

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MySQL Slow
I had downloaded a few years back mySQL v3.51 installed but never used it. Now I wanted to convert some B-TREE databases to mySQL and did some testing via ODBC to insert 70,000 records: My results:

MS ACCESS: ~60,000 msecs
MYSQL v3.51 ~18,000 msecs

Impressed with the speed, I went ahead and got the latest MySQL v5.1. Uninstalled the older version, I had nothing there to preserve, so I did a simple new install with MySQL v5.1. I noticed the size of the files and BINEXE increasted by 1,000,000%. Ok, Bulky. Not a problem.

I reran the same ODBC test, and now I got:

MYSQL v5.1: ~450,000 msecs or 7.5 freaking MINUTES!

What the hell happen? Nothing was done. I'm knew to MYSQL. I just installed it with all the defaults. I did choose "developer's machine" for the "optimizer wizard"

I can't redistribute MYSQL v3.51 and force it down people's throats! I have to use what they are using already, if already installed. Not even my current system takes 1 minute to add 70,000 records. Why 7.5 minutes? All it is simple inserts/free statements.

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Join Too Slow
I'm creating a query that use Join clause. I tested it in MySQL 4.0.24 and with MS-ACCESS. . . . in MySQL is slow!!! any suggestion ?

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Slow Connection
I build an application and installed it on many machines. In every machine except two, the program works without problems. On this two, the connection with database is too slow.

I saw the opened doors with 'netstat' and the computer opens about 5 or 6 ports (to the port 3306 of the mysql server) before sucessfuly connect with MySql Database and execute the sql. I don't know what could be happening. I realy need to fix this because the progrm is too slow with this error. Could anyone know what could be happening??

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Slow Connect
Does anybody know why it sometimes takes more than 10 seconds to connect to a database and sometimes it just takes half a millisecond?

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Slow Queries
I had a working web page that queried 20 tables and returned the data in the form of a table ... all of a sudden this stopped returning the results , and on investigation, up to ten tables, the query time is about 0.01 second ... but as the number of tables is increased to fifteen, the query time increases to 60 second .. and then gets too slow with nothing being returned at all.

A few days ago, this was all working fine. There have been no changes to the code on the web page ....
The version of mysql is 4.0.20, the server is a dual 1 MHz Xeon with 512 meg of RAM, running linux.

The tables have up to 15 fields each, and there is only simple text or numerical values in the fields.

Can anyone suggest what might have changed to suddenly slow down the query ?

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