On Tuesday 03 October 2006 10:57, Feliks Shvartsburd wrote:
Does anybody know how can I see what queries are currently being
executed?
From the mysql commandline, use show processlist;
There is also a program called mytop which shows what's
executing.
-Chris
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;
note that this table will mostly consist of table writes (updates, inserts,
deletes).
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it is corrected?
mysql:
Ver 14.12 Distrib 5.0.22, for sun-solaris2.8 (sparc) using EditLine wrapper
Thanks for any insights.
Chris Jones
14 Oneida Avenue
Toronto, ON M5J 2E3.
Tel. 416-203-7465
Fax. 416-946-1005
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sed -r s/ +/\t/g infile.txt
or
perl -e s/\s+/\t/g and print $_.\\n\ while infile.txt
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Peter Van Dijck wrote:
Thanks.. the problem is I'm running MySQL 4.1.16
I might try FULLTEXT...
U can create normal indexes on text columns if u specify a prefix
length.
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perl -e chomp and print \INSERT INTO FILES SET `fname` = '$_'\n while
current.tmp
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U can install perl for windows from ActiveState. U can also get sed for
windows from Cygwin. These tools should be considered mandatory.
Scott Hamm wrote:
Sorry, I'm using Windows cmd shell, no perl, no linux stuff. :(
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Chris Wagner
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suggested. However I'm unclear as to why you would store numeric data
in a var char field. If at all possible it would be better to store it
in a numeric field.
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Ratheesh K J wrote:
Hlo,
I got this Stat of MySQL. I want to know is there something to worry about,
especially the number of temp tables.
That looks like a sign of missing indexes.
Temporary tables shouldn't be created that often if your queries are
indexed properly, even though they're
[EMAIL PROTECTED] wrote:
hi, everyone!
I have a text file like this:
10:10:00 0 0 1 99
10:20:00 0 0 1 99
10:40:00 11 3 4 83
11:00:00 1 1 2 97
11:05:00 2 1 1 96
I need to load this
, grouping, table joins, subqueries (possibly)..
- Original Message - From: Chris [EMAIL PROTECTED]
To: Ratheesh K J [EMAIL PROTECTED]
Cc: mysql@lists.mysql.com
Sent: Wednesday, September 27, 2006 12:50 PM
Subject: Re: Mysql Stat - Help required
Ratheesh K J wrote:
Hlo,
I got this Stat
Pe 27 Sep 2006, la 10:29, Chris [EMAIL PROTECTED] a scris:
Did you try using a space (' ') as the separator? Did you get an error?
And at 7:41 + 27/9/06, [EMAIL PROTECTED] wrote:
Yes, I did.
...
So, I need to specify somehow that the fields are delimited by any
number of spaces
Brian Dunning wrote:
Before I do this, I just wanted to check with you all to see if this is
the correct command:
/etc/rc.d/init.d/mysqld restart --log-slow-queries
If so, where exactly will I find the slow query log?
Will the slow query log be turned off by default next time I restart it?
This is a situation where u should use mysqlhotcopy. That gives u a
snapshot of the current table and lets u work on it offline while the
real table is available.
hotcopy table A to B
blank table A to allow inserts
work on table B
merge A into B
delete A
rename B to A
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mos wrote:
At 08:41 PM 9/25/2006, you wrote:
Dilipkumar wrote:
Hi,
Its delete * from table will only do if you go for a truncate it will
recreate the table structure ?
It's better to use delete.
Can you explain why? I'd go for instant truncate rather than waiting
around for delete to
= lv.baseitemid
)), 'Y', 'N') AS Lang Avail
Looks to me as if your parentheses don't balance
here - you have an extra ')' in that last line.
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Highway 57 Web Development -- http://highway57.co.uk/
I once preached peaceful coexistence with Windows.
You may laugh at my expense - I
Dilipkumar wrote:
Hi,
Its delete * from table will only do if you go for a truncate it will
recreate the table structure ?
It's better to use delete.
Can you explain why? I'd go for instant truncate rather than waiting
around for delete to finish.
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Hal Wigoda wrote:
how do you find where mysql data resides?
The my.cnf file contains a line like this:
datadir=/var/lib/mysql
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[EMAIL PROTECTED] wrote:
Hi.
What binary relase use for CentOS 4.4:
* Linux (x86, glibc-2.2, standard is static, gcc):
mysql-standard-5.0.24a-linux-i686.tar.gz
* Linux (x86): mysql-standard-5.0.24a-linux-i686-glibc23.tar.gz
In
But how will that interact with the auto increment counter? Will
truncate reset the counter.
Chris wrote:
Peter Lauri wrote:
DELETE FROM table
Truncate will be a lot better.
DELETE FROM table will do it row by row which also means it will have to
update any indexes applicable
Peter Lauri wrote:
DELETE FROM table
Truncate will be a lot better.
DELETE FROM table will do it row by row which also means it will have to
update any indexes applicable to the table as it goes...
Lots of data lots of indexes = very slow.
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Wagner, Chris (GEAE, CBTS) wrote:
But how will that interact with the auto increment counter? Will
truncate reset the counter.
According to the docs it will:
http://dev.mysql.com/doc/refman/5.1/en/truncate.html
The table handler does not remember the last used AUTO_INCREMENT value
Neil Tompkins wrote:
Hi
I've the following tables
(holds a list of companies)
TableName:Company
CompanyID (int)
CompanyName (varchar)
(holds a list of areas)
TableName:Area
AreaID (int)
AreaName (varchar)
(holds a list of what areas are near to what companies),
At 10:41 +0200 15/9/06, Dominik Klein wrote:
I have a table with primary key id. Another field is date. Now I
want the last n entries, sorted by date.
Is this possible in one SQL statement?
ORDER BY `date` DESC LIMIT n
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Highway 57 Web Development -- http://highway57.co.uk
. Of course the output is not rounded. The following are a few
examples of the output of the round statement.
ROUND(23.632, 2) = 23.63
ROUND(23.632, 1) = 23.6
ROUND(23.632, 0) = 24
ROUND(23.632, -1) = 20
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? I haven't seen anything promising in the manual.
We're on 5.0.24.
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Thanks for that but I was hoping there was a way to do it live that
didn't require restarting/reloading. Something to do at the mysql
prompt. We had to repair a table and all the backed up connections were
threatening to take down the daemon.
Mikhail Berman wrote:
Hi Chris,
In my.cnf
Philip Hallstrom wrote:
Hi all, a though query problem for me...
I have a table with 2 rows that matter: url and id
If url and id are the same in 2 rows, then that's no good (bad data).
I need to find all the rows that are duplicates. I can't think of how
to approach the sql for this.. any
Graham Anderson wrote:
Is anyone using subversion to sync live and development databases?
If so, how?
Is this desired or a best practice?
Everything except my databases are under version control.
In theory, I would like my databases to sync with the same subversion
'svn update' command.
That
Leo wrote:
Hi,all.I want to use mysqldump to backup a innodb table,and add the option
--single-transaction,dose it lock all the table?thanks.
It has to so it can give you one transaction and make sure nothing else
gets entered after it starts and before it finishes.
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No, I don't generally go along with underhand political activity. :-)
(but I expect that's an old joke - I haven't been MySQLing all that
long, you see...)
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Highway 57 Web Development -- http://highway57.co.uk/
Any inaccuracies in this index may be explained by the fact
Philip Hallstrom wrote:
Philip Hallstrom wrote:
Hi all, a though query problem for me...
I have a table with 2 rows that matter: url and id
If url and id are the same in 2 rows, then that's no good (bad data).
I need to find all the rows that are duplicates. I can't think of how
to approach
Lakshmi wrote:
Hi,
I want to know is there any difference between myisam primary index vs
innodb primary index...
One's for a myisam table one's for an innodb table.
They are treated exactly the same - both are unique, both have indexes.
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Nico Sabbi wrote:
Ratheesh K J wrote:
Hlo all,
I wanted to move around 50 GB of data on Machine A to Machine B. Both
the machines are of same architecture ( LAMP )
Dumping and restoring takes a lot of time. Is there a faster method to
accomplish the same?
Is there a way to tar the whole
BY
derived_column
;
This works on a table I have.
SELECT MIN(tone) as `min`, MAX(tone) as `max`, MIN(tone)/MAX(tone) as
ratio FROM pltone p
I put the back tick mark around min and max alias, I'm not sure you need
it but it is always a good idea anyway.
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Markus Hoenicka wrote:
Hi,
is the following behaviour intended? Are my queries wrong? The output
shows only the Extra field as the other fields are identical in all
cases.
EXPLAIN SELECT t_refdb.refdb_id FROM t_refdb WHERE t_refdb.refdb_id0
ORDER BY t_refdb.refdb_id;
= Using where; Using
Hello,
My name is Chris Glavin. I emailed you because you are an educator. I run a
website which is all about Education Disabilities. It is geared towards
parents, students, teachers, district officials professionals. I ask that
you take a few minutes out of your busy schedule to visit my
[EMAIL PROTECTED] wrote:
Hi Dan,
Thanks for yur response. Does it makes sense to create an index on a
primary key ..as that is my smallest field ?
A primary key already has an index.
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-0002 ON DUPLICATE KEY UPDATE
FAC_ID=FAC-0003
Now in my untrained mind, this should create 4 new, identical records with
only the fac_id field changed.
Where am I going wrong?
Thanks.
Chris Jones
14 Oneida Avenue
Toronto, ON M5J 2E3.
Tel. 416-203-7465
Fax. 416-946-1005
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]
Chris Jones
14 Oneida Avenue
Toronto, ON M5J 2E3.
Tel. 416-203-7465
Fax. 416-946-1005
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is the first thing on the line, replace the first space on
each line with a ^ and remove the second space.
If the date is quoted, replace both spaces on each line with a quote.
If the date is preceded by just a tab, replace both spaces on each line
with a \t
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error: Found option without preceding group in config file:
/u07/mysql/data/upgrade_defaults at line: 2
Fatal error in defaults handling. Program aborted
This is your problem.
What's in that file (/u07/mysql/data/upgrade_defaults) ?
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on this table that could be doing this?
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privileges.
Chris Jones, P.Eng.
14 Oneida Avenue
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Tel. 416 203-7465
Fax. 416 946-1005
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Thanks for that. Will create the two tables ahead of time which won't
affect the existing application.
At 11:57 30/08/2006, [EMAIL PROTECTED] wrote:
Chris Jones wrote:
Can the mysql administrator grant permissions on a table in an existing
database if that table doesn't exist yet
[EMAIL PROTECTED]
F [EMAIL PROTECTED]
The query would return row A, D, B, and E, in that order. It would not
return C or F
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http
stack trace info, but the debug
version didn't generate anything. Has anyone else encountered
such a problem with Solaris 8 and mysql 5.x? I dug around online
and couldn't find any mention of such a problem.
-chris
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obed wrote:
Hi all... i'm developing an aplication and i'm need to use begin,
commit, rollback, but when i try to use rollback i get a warning
| Warning | 1196 | Some non-transactional changed tables couldn't be
rolled back |
Transactions only work for table types that support them. MyISAM is
Boyd Hemphill wrote:
The documentation for 4.1 says that changing to a row_format of fixed
will increase disk look up.
I did this with several tables where a query was taking about 3
minutes. I expected (from the doc and past experience) for the query to
run in about 1 to 1 ½ minutes.
Ruth wrote:
All,
I am having difficulties getting the Coldfusion Administrator to establish a database
connection to a database called accounting that I created using the command
line utility. Any help would be very appreciated
This is the error that CF is throwing:
Connection
Tanner Postert wrote:
there are ton of these files in my mysql data directory on fedora core
5
they are about a GB a piece.
it appears that they are snapshots or some kind of log file. what is
creating these files?
http://dev.mysql.com/doc/refman/5.1/en/binary-log.html
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the previous value is.
You probably should define a stored procedure and call that. Here is
an example which seems to work:
Why not use this
INSERT INTO table
VALUES(..)
ON DUPLICATE KEY UPDATE
X = $X, y=$y ..
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give
to figure out the
distance. Not sure where you get the data but someone here probably
knows. You can find details on the calculations here...
http://williams.best.vwh.net/avform.htm
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李彦 wrote:
Dear Sir:
I have some problems with mysql 5.0 binary source in Linux(RedHat).I'm
able to startup the mysql process.
But when i type in :mysql -u root -h localhost -p, and then put the
correct password, I can not enter the database.
I took almost one week to
PS: I already tried with myisamchk -r -o *.MY*, but then all datasets
are gone and the table is empty. :-(
man myisamchk
I tried myisamchk already. But after running the above rescue attempt, the
tables are empty.
Then I hope you made backups You, do keep backups right?
--
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back
out of that... But otherwise, I'd say you're out of luck.
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also help. If you move it, you need to be sure
to have enough network band width between the two machines.
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nicely at
http://www.aboutmyip.com/AboutMyXApp/IP2Integer.jsp But how to do this as
part of a query... *frown*
Any help appreciated...
Regards,
Chris.
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RTFM! Let that be a good lesson for me now :)
INET_ATON() and INET_NTOA() Brilliant!!!
Regards,
Chris.
- Original Message -
From: Chris Knipe [EMAIL PROTECTED]
To: mysql@lists.mysql.com
Sent: Saturday, August 26, 2006 9:03 PM
Subject: IP Address Function?
Hi,
I need to make
Eric Anderson wrote:
I've got a master (Master) with a MERGE table of foo_t (comprising of
bar_a, bar_b, bar_c) in database 'Igloo'.
There are 5 slaves that replicate the Igloo table, but ignore the
Igloo.foo_t table.
This setup was working fine. If the Master server crashed or had a
, a couple of
hours later, I had about 5 million records in a table. Not a single one of
them experienced the above
I'm pretty sure your -00-00 does not come from NOW()
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INSERT INTO a VALUES (NOW()) ?
Regards,
Chris.
- Original Message -
From: Renato Golin [EMAIL PROTECTED]
To: Nicholas Vettese [EMAIL PROTECTED]
Cc: mysql@lists.mysql.com
Sent: Friday, August 25, 2006 4:31 PM
Subject: Re: Testing Email
Nicholas Vettese wrote:
I have been having
Doh.. Wrong email ;)
INSERT INTO a VALUES (NOW()) ?
Regards,
Chris.
- Original Message -
From: Renato Golin [EMAIL PROTECTED]
To: Chris Knipe [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]; mysql@lists.mysql.com
Sent: Friday, August 25, 2006 4:30 PM
Subject: Re: MySQL NOW() function
Neil Tompkins wrote:
Thanks for the info. I think that problem was the fact I only had a couple of
records. When creating the FULLINDEX field, does anything else happen to the
field, other than the fact you can search FULLINDEX. The reason I ask is
because I have about 1600 text fields
Neil Tompkins wrote:
Using this query seems to hang my computer and mySQL server reported the
queries had been LOCKED.
How many records are in each table?
It could take a while, especially if you don't have indexes on the join
fields.
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Ratheesh K J wrote:
Hello All,
I wanted to know what is the best size for Innodb key cache. We are currently
running MySQL 4.1.11
And we have set the buffer size to 1GB.
innodb_buffer_pool_size = 1G
The system has 4 GB RAM.
1) In such a case is the above setting ok?
2) All the tables are of
Jürgen Ladstätter wrote:
hi all,
i developed a programm which needs my external mysql database server. now i
have to transfer a lot of data and i have todo a lot of select queues. how
can i tune that, so that it would be faster? in my monitoring system i saw,
that CPU load is 0, the only
On 8/23/06, Ratheesh K J [EMAIL PROTECTED] wrote:
Hello all,
I wanted to know why a select query takes ,say, 18 sec to execute the first
time I execute it and then for every successive execution it takes, say, 10 sec.
I have disabled Query Caching on the server. If its not Query Caching then
On 8/23/06, matt_lists [EMAIL PROTECTED] wrote:
Not sure if this is a bug
we are updating a large table with replace delayed from our feeder
systems, 1000 records at a time using limit's on the input data pull
this works great when there's fast selects from the table, while the
insert is
On 8/23/06, matt_lists [EMAIL PROTECTED] wrote:
We did not see this on 5.0.19, with 5.0.24 our backup jobs lock the
tables for selects
the backup takes 3 hours, so the site is down the whole time
I'm using this backup line
mysqldump -d -f --quote-names --skip-add-locks database outfile
matt_lists wrote:
It's not a bug. I guess this is a myisam table?
http://dev.mysql.com/doc/refman/5.1/en/table-locking.html
Any time the table is changed with myisam, the whole table is locked.
That's the way it works.
Innodb doesn't do it this way but it might cause other issues for you.
matt_lists wrote:
chris smith wrote:
On 8/23/06, matt_lists [EMAIL PROTECTED] wrote:
We did not see this on 5.0.19, with 5.0.24 our backup jobs lock the
tables for selects
the backup takes 3 hours, so the site is down the whole time
I'm using this backup line
mysqldump -d -f --quote-names
axis wrote:
Hi,
I'm trying to copy between two databases with the same tables, but the
destination one has a different number of rows.
I used SQLyog first to create the script with the necessary commands and
it partially worked after applying it to the second table, but my
problem is with
Visolve DB Team wrote:
hi
MySQL automatically converts a date or time type value to a
number (numeric context) viceversa.
When the server starts, it attempts to determine the time zone of the
host machine and uses it to set the *system_time_zone* system variable.
The value does not
Jerry Schwartz wrote:
Actually, by default a full text search ignores words that are three
characters or less, not less than three characters.
I found this out by searching on red.
Ahh, oops :) Thanks!
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Neil Tompkins wrote:
OK, I appear to be getting somewhere with the FULL TEXT search. Does anyone
have any good resources about producing search engine type results ? for
example if some enters a search phrase like londn how would I suggest the
word london ?
I was listening to a podcast
Dilipkumar wrote:
Hi,
While taking backup in MySQL 5.0.24 for (ndbcluster tables) i am getting the
following errors :
mysqldump: Error 1296: Got error 241 'Invalid schema object version' from ndbcluster when dumping
table `iib_candidate_tracking` at row: 0
When i checked out using ndberror :
referencing the UserChecks
tables (except for the GROUP BY and ORDER BY). I've added an index on the
Attribute column (VARCHAR(32)) but the EXPLAIN still shows that it is not
using the index
Is the above optimised? What can be done here to improve things
Thanks allot,
Chris
http://dev.mysql.com/doc/mysql/en/old-client.html
Regards,
Chris.
- Original Message -
From: Odhiambo Washington [EMAIL PROTECTED]
To: mysql@lists.mysql.com
Sent: Tuesday, August 22, 2006 7:38 PM
Subject: MySQL 4.0.27-client and MySQL-4.1.21 server
hi
Why is it that I cannot
Ratheesh K J wrote:
Hello all,
I have a couple of questions on storage engine types wrt performance
1.. Will there be any performance degrade when we do joins with tables having
different storage engines ?
Depends on the type of queries I think.
There could be something here
Chris Knipe wrote:
Hi,
I got 4 relatively big (for me at least) queries. At the moment, the
data in the tables are merely test data, but once the system goes into
production, I'm expecting millions of records in most of the tables.
I'm trying very hard thus to optimise my queries
Neil Tompkins wrote:
I followed the instructions, but when doing a search I get no results returned.
here is my table
CREATE TABLE /*!32300 IF NOT EXISTS*/ MyTest ( id int(10) unsigned NOT NULL
auto_increment, title varchar(200) , body text , PRIMARY KEY (id), INDEX
title
it back to UTC
and so on manually..
I've looked through the manual a few times but can't find an answer
either way :(
Thanks,
Chris.
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On Monday 21 August 2006 08:40 am, Karl Larsen wrote:
I think I need to su - mysql and it askes for a password. What is
that password?
If you're root you don't need to enter a password. If you can't become root
then the system admin has that information.
Karl
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in MySQL to do this, or do I just need to write code to
track any changes as they are entered?
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Well MySQL will see all the changes coming from a single user (the user who
the web site connects to the database as). You'll have to add your own
routines to log that info to a table or something...
Unless ofcourse, I'm missing something, which I doubt :)
Regards,
Chris.
- Original
On 8/20/06, Ow Mun Heng [EMAIL PROTECTED] wrote:
I'm have a query like so
select
A,
index_A
from
tableA
join tableB
on tableB.indexA = tableA.indexA
select
A,
index_A
from
tableA
join tableB
on tableB.A = tableA.A
whcih would be more efficient? using the where clause which uses the
index or
BY UserID
ORDER BY Count DESC
LIMIT 5
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Ow Mun Heng wrote:
On Sun, 2006-08-20 at 19:59 +1000, chris smith wrote:
On 8/20/06, Ow Mun Heng [EMAIL PROTECTED] wrote:
I'm have a query like so
select
A,
index_A
from
tableA
join tableB
on tableB.indexA = tableA.indexA
select
A,
index_A
from
tableA
join tableB
on tableB.A = tableA.A
Nicholas Wyatt wrote:
Hello to all!
has anybody got any ideas how i can speed up the following query?
it's so awfully slow (about 1 second).
the test_item table is the main problem. currently, it has
about 108.000 entries.
is it normal that it takes so long? and if it isn't, how can i
VenuGopal Papasani wrote:
Dear all,
I have a table with the following structure.
ield Type CollationNullKey Default
Extra Privileges Comment
--- -- -- ---
[ always cc the list so others can share the fix or make appropriate
comments ]
Nicholas Wyatt wrote:
hi chris,
thanks for answering! however, i do already have indexes on those
columns. all my tables use the myisam storage engine. what are the
differences you mentioned between these engines
://williams.best.vwh.net/avform.htm
--
Chris W
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Mike Blezien wrote:
Chris,
this is something very similar to what we are attempting to accomplish:
http://www.papajohnsonline.com/restlocator/RestaurantLocator
The math in the link I gave you will still work for the distance
calculations, however if you want what that site does you will need
On 8/19/06, balaraju mandala [EMAIL PROTECTED] wrote:
Hi Everybody,
I need small help from you. In my Linux box i have limitation of Size in
partition. I have only 5 GB space for /var. MySQL is installed in this
partition only. I want to give another path like /home, where i have 120GB
of
Marc MENDEZ wrote:
Hi,
I work under Mandrake 10.1
First, I have a .my.cnf, which works quite well, since I can enter mysql
without entering any password.
Even mysqladmin works !
But, I have a batch process run by crontab as root, which tests if mysql
is running (mysqladmin version --silent).
Jon Molin wrote:
Hi list
I have 5 tables:
words (word_id int auto_increment, word varbinary(40)) (has ~3.5M
rows) with the keys:
PRIMARY KEY (`word_id`),UNIQUE KEY `word_ind` (`word`)
phrases (phrase_id int auto_increment, phrase varbinary(100)) (has
~11M rows) with the keys:
PRIMARY KEY
Marc MENDEZ wrote:
Hi,
For mysqladmin, this parameter does not exist. I'll try anyway by
forcing password and user on the command line.
I'll check tomorrow.
Sure it does.
$ mysqladmin --help | grep extra
--defaults-extra-file=# Read this file after the global files are read
--
MySQL
Unfortunately didn't that help, it leads to:
++-+---+---+---
| id | select_type | table | type | possible_keys
| key | key_len | ref | rows| Extra
|
++-+---+---+---
| 1
EXPLAIN is documented in the manual
http://dev.mysql.com/doc/refman/4.1/en/explain.html.
So it is, but it doesn't show me the decisions it makes. It shows me
whether it will use an index or not, it won't show me how it puts the
whole thing together.
Compare to the postgres one:
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