Hi,
I would like to migrate my DB from Sybase ASE to MySQL INNODB table. Data has been
extracted and stored as a file. I want to use the command Load Data Infile to insert
the data to MySQL. However, some table contains millions of rows. Can i control the
batch size of the loading (e.g.
4.0.18-standard
I need to duplicate a select of records, all in the same table, but also
make a change to one field.
Here is one table I need to do this on
++---+--+-++
| Field | Type | Null | Key | Default|
on 06/27/2004 11:31 PM, Scott Haneda at [EMAIL PROTECTED] wrote:
So, I need to basically:
SELECT iamge_title, image_filename, image_url, image_width, image_height
from images where user_id = '123';
Then, take that result and insert all those rows in the same table, setting
type='2' and
Hello All,
We recently ran a few tests on mysql on both solaris and linux
environments. It turned out that mysql was much faster and responsive
on linux. After doing some digging, we found out one of the possible
reasons is the fact that mysql source code uses malloc all over the
place.
On
O.K. you SQL gurus--
I have a difficult query for you that has me stumped. The table has two
columns: rowID (MEDIUMINT-but *NOT* AUTO_INCREMENT) and theDate (DATETIME).
I need it to find:
1. The COUNT of REPEATED instances of the rowID in the last month.
- so if there are 5 rows with the same
Hi John,
O.K. you SQL gurus--
I have a difficult query for you that has me stumped. The table has two
columns: rowID (MEDIUMINT-but *NOT* AUTO_INCREMENT) and theDate
(DATETIME).
I need it to find:
1. The COUNT of REPEATED instances of the rowID in the last month.
- so if there are 5
From: John Mistler [EMAIL PROTECTED]
I have a difficult query for you that has me stumped. The table has two
columns: rowID (MEDIUMINT-but *NOT* AUTO_INCREMENT) and theDate
(DATETIME).
I need it to find:
1. The COUNT of REPEATED instances of the rowID in the last month.
This is relatively
* John Mistler
I have a difficult query for you that has me stumped. The table has two
columns: rowID (MEDIUMINT-but *NOT* AUTO_INCREMENT) and theDate
(DATETIME).
I need it to find:
1. The COUNT of REPEATED instances of the rowID in the last month.
- so if there are 5 rows with the same
Scott Haneda wrote:
So, I need to basically:
SELECT iamge_title, image_filename, image_url, image_width, image_height
from images where user_id = '123';
Then, take that result and insert all those rows in the same table, setting
type='2' and added=NOW()
I think I need to do a subselect, the docs
To be able to use subqueries, I'm now using mysql-4.1.2b-alpha-win.zip
I'm using mysql-connector-java-3.1.2-alpha.zip as my jdbc driver to connect
to the db...
I'm selecting some columns from a table where the column is created using
mediumint.
Somehow, after creation, it becomes mediumint(9)
I'm using mysql-4.1.2b-alpha-win.zip and mysql-connector-java-3.1.2-alpha.zip
to access db via JDBC.
The column is mediumint(9)
It was created using type mediumint, somehow it was changed to mdiumint(9)
I think there may be a problem in the size...
java.sql.SQLException: Unknown type '9 in
hello all
What is more important? triggers or stored procedures.
I think that triggers they are a lot more important than stored proc. because stored
procs they can be implemented in the front end application.
In the version 5 should be implemented triggers instead of stored procedures.
(excuse for my english)
all proccess is ok.. the replication starts.. but, a few minutes later, mysql
shows me this error:
Last_error: Error 'Table 'eshablar_new.contadorZs' doesn't exist' on query
'UPDATE contadorZs set indCont = indCont + 1 where idUser = 2394'. Default
database:
Hi Carlos,
What is more important? triggers or stored procedures.
I think that triggers they are a lot more important than stored proc.
because stored procs they can be implemented in the front end application.
Then they wouldn't be Stored Procedures anymore would they :-)
In the version 5
On Mon, 28 Jun 2004 07:11:04 -0300
Carlos J Souza [EMAIL PROTECTED] wrote:
hello all
What is more important? triggers or stored procedures.
I think that triggers they are a lot more important than stored proc. because stored
procs they can be implemented in the front end application.
Hi everyone
I need have a row counter in a query but I'm not sure if there is any way to
do this. In essence all I need is get a result like this:
Counter column-A column-B
1 A-1 B-1
2 A-2 B-2
: : :
:
Hi,
I would agree with Martijn that both features are important. It is like arguing if air
conditioning is more important than automatic gearbox when you buy a car. They are
both useful but which one you go for depends on where and how you drive the car.
Personally, I would have both and also
Hi,
I am working on a web project project where one of my pages has to show a count of
total number of matches found and short text for few of them, just like a
search engine.
I need to issue two queries first one fetches a count for total matches found and
second query finds detail to
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On Sunday, Jun 27, 2004, at 12:31 US/Eastern, David Blomstrom wrote:
Suppose I want to display an entire field, but not in
one long column. Instead, I want to flow it evenly
into several columns.
[snip]
I haven't yet learned of a way to do this with
Have you ran an explain plan on the query to identify the execution path?
-Original Message-
From: Aasef Iqbal
To: [EMAIL PROTECTED]
Sent: 6/28/04 6:15 AM
Subject: slow query when searching database of over 2 million records
Hi,
I am working on a web project project where one of my
Can you post the code or sql that you are attempting to execute that is
throwing tis error?
-Original Message-
From: Oliver Chua
To: [EMAIL PROTECTED]
Sent: 6/28/04 5:08 AM
Subject: SQLException when retrieving resultset containing mediumint
(4.1.2b-alpha-win db and java-3.1.2-alpha
You got it!! That is the easiest way to duplicate data while
changing(setting) certain columns to new values.
WTG!
Shawn Green
Database Administrator
Unimin Corporation - Spruce Pine
I do not believe this is currently an option in the `load data infile`
syntax. One option would be to read the file programmatically and issue the
commits after `x` number of inserts.
-Original Message-
From: Michael Lee
To: [EMAIL PROTECTED]
Sent: 6/28/04 1:21 AM
Subject: INNODB
Carlos,
I think you have a misunderstanding about what a trigger is or does. A
trigger is, in its most basic form, an automatically executed stored
procedure.
The ability to detect an event is pointless withouth the ability to do
something once that event occurs. We have to have the one
You should only need to do your second query and use the
SQL_CALC_FOUND_ROWS and a new query using SELECT FOUND_ROWS()to minimize
the number of times you need to _actually_ search your database.
see: http://dev.mysql.com/doc/mysql/en/SELECT.html
and:
Hello,
do I need the character sets on the client side or just on the server?
Client and server are different servers, so I want to reduce the
client-package to a minimum:
/usr/bin/mysql
/usr/bin/mysqldump
/usr/bin/mysqlshow
/usr/lib/mysql/libmysqlclient*
I don't need man-pages et cetera. So,
Hi!
How do I know which of the storage engine am I using or running, or
whatever that use the databases/tables?
Thanks,
Scott F.
Do a show variables from the MySQL monitor.
show variables;
-Original Message-
From: Scott Fletcher
To: [EMAIL PROTECTED]
Sent: 6/28/04 10:27 AM
Subject: MySQL Storage Engines and Table Types.
Hi!
How do I know which of the storage engine am I using or running, or
whatever
Hi all,
I need to select the top 1000 records based on the usage field and update
the checked field to '1'.
I am currently doing it in 2 statements; i.e. select first then update from
a MYSQL_ROW array. How do I do it in just a single statement?
Please advice on a better way. Also...will doing
You can see a list of the available storage types with SHOW ENGINES
To see which engine is in use for any table you can SHOW TABLE STATUS or
SHOW CREATE TABLE tablename
All of these commands, and more, are documented at :
http://dev.mysql.com/doc/mysql/en/SHOW.html
Yours,
Shawn Green
Database
- Original Message -
From: darren [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Monday, June 28, 2004 11:42 AM
Subject: select and update field in one query
Hi all,
I need to select the top 1000 records based on the usage field and
update
the checked field to '1'.
I am currently
I would personally do it in three statements. The first one creates a
temporary table from the results of the (SELECT) below. The second is the
update with a JOIN to the temporary table. The third drops the temporary
table. Doing it that way avoids the need to scroll through your recordset
Group,
First of all thanks to anyone who can respond to this - I am really stumped.
I have been trying to figure this one out and maybe someone out there with a
little deep understanding of joins in sql can give me a hand.
I am working on a system that creates these sql statements on the fly
Noticed something interesting about UNION and INTO OUTFILE
If I do this:
(SELECT a FROM b)
UNION
(SELECT a INTO OUTFILE 'out.txt' FROM c);
The query executes - no results printed to the screen but rather saved to the out.txt
file, as intended. But if I do:
(SELECT a FROM b)
UNION
(SELECT a
Use MySQL Query Caching
-Original Message-
From: Aasef Iqbal [mailto:[EMAIL PROTECTED]
Sent: Monday, June 28, 2004 4:46 PM
To: [EMAIL PROTECTED]
Subject: slow query when searching database of over 2 million records
Hi,
I am working on a web project project where one of my pages has to
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Oliver Chua wrote:
To be able to use subqueries, I'm now using mysql-4.1.2b-alpha-win.zip
I'm using mysql-connector-java-3.1.2-alpha.zip as my jdbc driver to
connect
to the db...
I'm selecting some columns from a table where the column is
Joseph,
You actually had 3 joined statements. Here are your queries isolated from
the rest of your posting (and slightly reformatted):
1) an INNER JOIN (aka an 'equijoin') using the comma format
select cs_fld_cs_tbl_l.cs_type
,field_name
,name
,type
,type_sql
I'm assuming you want the rows with the top 1000 usage values. Why not just
do it in 1 UPDATE statement?
UPDATE yourtable SET checked = 1 ORDER BY usage DESC LIMIT 1000;
This should work for any mysql 4.x.x, according to the manual
http://dev.mysql.com/doc/mysql/en/UPDATE.html.
Michael
On Tue, Jun 22, 2004 at 01:34:39PM -0400, Aram Mirzadeh wrote:
We have an internal SNMP monitoring system that is monitoring about
10,000 devices. Each device is pinged then pulled for about an
average of 25-30 elements. Each of the ping results and elements
are then stored in text file,
Have you thought about using Merge tables?
If you have a sliding 5 minute monitoring window that you need to query
frequently you could create a smaller MERGE table to hold to 6 minutes
worth of data composed of six tables of one minute's data each.
At the end of each minute, you create a new
Greetings.
My company has an immediate opening in SF for a Sr. Mysql/DB
architect. I was wondering if this would be the appropriate list to
post such an announcement?
Michael
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You need to flip the business table around your join so that you get all of
the businesses listed and check for the appropriate NULL values in the
other tables.
This will give you all of the business that neither have a record in 2004
nor will they be part of package 16
SELECT *
FROM business
Wow, that was it! I changed the WHERE to (because I wasn't clear):
. . . WHERE theDate BETWEEN SUBDATE(CURDATE(), INTERVAL 1 MONTH) AND
CURDATE() . . .
Now, I have just one more that I still am stumped by, if anyone (Roger or
other) has a second:
Given theTable with 2 columns: rowID
By default MySQL flushes keys to disk with every INSERT, hence the
performance degredation with performing several single INSERTs one after the
other. The following extract from the MySQL documentation hints at one way
of changing this on a per-table basis:
a.. Declaring a MyISAM table with the
On Mon, Jun 28, 2004 at 09:21:04PM +0100, Andrew Pattison wrote:
By default MySQL flushes keys to disk with every INSERT, hence the
performance degredation with performing several single INSERTs one after the
other. The following extract from the MySQL documentation hints at one way
of
Here's another variant:
All businesses with a record in any year but 2004 that have a package other
than 16. (This will not find any businesses who have records ONLY in 2004
or that ONLY have package 16.)
SELECT *
FROM business AS b
INNER JOIN records AS r
on b.b_id=r.r_b_id
AND
Hi there,
I have Mysql 4.1.1 runing on Redhat Linux 9, both of them are English
Version.
Now, I need a table which my user can input both Chinese and English, so I
create a DB as following:
DROP database IF EXISTS user;
CREATE DATABASE IF NOT EXISTS user CHARACTER SET utf8;
use user;
DROP
Hello everyone,
We're having a problem with replication. The servers are all running 4.0.18 under SuSE
Linux 9.1 Professional.
I noticed that the two slaves were both showing a status of I/O thread not running.
In the mysqld.log file for both slaves I found the following entry:
040628
I've seen job announcements posted on other lists (and I think this one
as well). I think it's relevant, and shouldn't offend anyone.
David
Michael Halligan wrote:
Greetings.
My company has an immediate opening in SF for a Sr. Mysql/DB
architect. I was wondering if this would be the appropriate
Hi,
I'm just wondering if anyone can tell me exactly what happens when one
is using the mysql client on a remote server and the connection to that
server (in this case over ssh) gets dropped.
In this case, I was in the midst of a long OPTIMIZE TABLE. Stepped out
to get some coffee and the ssh
When a connection is dropped most read only queries will be immediatly
dropped, write queries such as your optimize table will continue until
they complete as not to corrupt any table data or leave anything
unfinished.
-Eric
On Mon, 28 Jun 2004 17:29:22 -0400, Jim [EMAIL PROTECTED] wrote:
Hi,
Hi there,
I'm currently writing a tool for managing time during a competition. My
problem is, that I want to save the time with the fraction of seconds.
as far as I know MySQL is fine with something like D HH:MM:SS.fraction,
but doesn't store the fraction. Is there anything that could fix that
The company I'm hiring is looking for somebody very senior to help
architect a very modular MySQL, Linux, and Java based infrastructure.
The official posting is below, but what we need is :
- Very senior with MySQL development
- Oracle experience to help facilitate a conversion project
- MySQL
After several long days trying to fix this I'm running out of ideas.
Master: RedHat 7.3 kernel 2.4, MySQL 4.0.20 32 bit (mysql.com rpm) -
Slave: Fedora Core 2 64 bit kernel 2.6.5, MySQL-Max-4.0.20-0 64 bit
(mysql.com rpm)
In a varying amount of time after a few hundred thousand queries
Show table status\G
Will give you a list of tables the Type: field for each table is the
storage engine. Your installation probably defaults to MyISAM
-Eric
On Mon, 28 Jun 2004 11:51:40 -0400, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote:
You can see a list of the available storage types
I had this same problem. This isn't fool proof or recomended but what
i ended up doing was calling mysqlbinlog over and over again
incrementing --position (or --offset i can't remember) until it picked
up a good record again and kept going. Chances are you will lose
queries but it does work.
On Mon, 2004-06-28 at 09:32, Joseph Norris wrote:
Group,
First of all thanks to anyone who can respond to this - I am really stumped.
I have been trying to figure this one out and maybe someone out there with a
little deep understanding of joins in sql can give me a hand.
I think you're
Need help with a SQL Select statement. I've got a table that consists of a
list of years (1930-2014). I need to create a drop-down list on my page
that consists of a list of years between 1930 and the current year. How do
I construct this SELECT? See below...
SELECT * FROM table WHERE
]=
]=What's the syntax for year of current date?
YEAR(NOW())
(rtfm..:-)
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For list archives: http://lists.mysql.com/mysql
To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
I'm migrating a Microsoft Access 2002 (Service Pack 3) table constructed
by my wife to a corresponding table in MySQL 4.0.20. Some columns in
most of the 3000+ rows are empty. Some of these are contiguous empty
columns. I don't know if Access considers them NULL or not, but when you
export an
This one I can help you with:
SELECT year-field FROM table WHERE YEAR(year-field) = YEAR(CURDATE());
- John
on 6/28/04 4:49 PM, Robb Kerr at [EMAIL PROTECTED] wrote:
Need help with a SQL Select statement. I've got a table that consists of a
list of years (1930-2014). I need to create a
Victor,
Thanks for your reply.
Actually, i cannot find such an option and want to see if i have missed something.
Referring to Innodb transaction log, I do some more searching and would like to
confirm what i found from the web (this information is not available in MySQL
documentation)
.
I am looking for information on the proper way to code full text queries and more
information on how they work.
I am especially interested in how to code for multi word queries...
for example :
Searching for : 'today is the day'
Select * from table1 where match field1 against ('today is the
At 10:24 PM 6/28/2004, you wrote:
I am looking for information on the proper way to code full text queries
and more information on how they work.
http://dev.mysql.com/doc/mysql/en/Fulltext_Search.html
I am especially interested in how to code for multi word queries...
for example :
Searching for
Hi All!
Where to find subj.?
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At 7:53 +0300 6/29/04, Dainis Polis wrote:
Hi All!
Where to find subj.?
strings/ctype-utf8.c, I believe.
--
Paul DuBois, MySQL Documentation Team
Madison, Wisconsin, USA
MySQL AB, www.mysql.com
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Nowhere in this discussion was this question.
Is it in the plans to have a 128 bit numeric column type for MySQL? If
so, in what kind of time frame? If not, why not?
Character arrays are obviously, but they are probably not the best way
to get optimal performance. Native support for a 128 bit
Hi all,
I was hoping this was the right place for a question about the C API.
I've been grabbing result sets from tables in the C API for a few years
now, but I'm starting to work with result sets that are big enough to
bog me down. Of course, the result sets aren't insanely big, so I was
In the last episode (Jun 28), Ray Kiddy said:
Is it in the plans to have a 128 bit numeric column type for MySQL?
If so, in what kind of time frame? If not, why not?
I don't know of any 32-bit compiler that provides a 128-bit integer
type, which means for most platforms mysql would have to
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