Hi,
Do you mean you have such a structure
Table A
ID_a
ID_b
ID_c
...
Table B
ID_b
Value_b
...
Table C
ID_c
Value_c
...
?
In that case you can
SELECT Value_b, Value_c
FROM A
LEFT JOIN B on A.ID_b=B.ID_b
LEFT JOIN C on A.ID_c=C.ID_c
WHERE ID_a=xxx
Regards,
Patrick
-Original
Hi,
I'm running a 5.0.16 instance on a Debian box (2.6.13 kernel). The
following statement causes a signal 11 without fail, and each time when
mysqld_safe restarts the daemon, no socket file is created:
UPDATE X_Products.product_details AS pd ,
X_Products.tblMaxProductStockDisplay AS sd SET
Hi,
I am trying to load the data from a text file into the table. I
have two datetime datatype fileds in my table.
When I loaded the data into the table using the Load Data INFILE
syntax, In the table my date fileds values are loaded as -00-00
00:00:00. The datetime value in the
Hi,
I have a 2 Date Columns in my table, how can I update the 2nd date column so
that the dates are 3 months previous to the orignial date column for every
row.
Thanks for your advice
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Hi Shaun
You could use DATE_ADD function with interval negative
Shaun wrote:
Hi,
I have a 2 Date Columns in my table, how can I update the 2nd date column so
that the dates are 3 months previous to the orignial date column for every
row.
Thanks for your advice
--
MySQL
Do you mean something like that?
UPDATE tablename SET date2=DATE_ADD(date1, INTERVAL -3 MONTH)
Regards,
Patrick
-Original Message-
From: Shaun [mailto:[EMAIL PROTECTED]
Sent: Monday, 16 January 2006 15:27
To: mysql@lists.mysql.com
Subject: UPDATE Date Column
Hi,
I have a 2
I have a database backed-website in development. (It's Rails based,
but for this question it probably doesn't matter.) To make sure
things are clean during development I re-generate things from a
script. Some things I generate depend on tables existing. Other
things depend on tables being
[EMAIL PROTECTED] wrote on 01/16/2006 08:22:00 AM:
Hi,
I am trying to load the data from a text file into the table. I
have two datetime datatype fileds in my table.
When I loaded the data into the table using the Load Data INFILE
syntax, In the table my date fileds values
Thanks Patrick,
Will this work on 3.23?
Patrick Herber [EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]
Do you mean something like that?
UPDATE tablename SET date2=DATE_ADD(date1, INTERVAL -3 MONTH)
Regards,
Patrick
-Original Message-
From: Shaun [mailto:[EMAIL
Is it possible to run nested scripts in MySQL?
If I want to run a script called TestA1.sql where TestA1.sql contains:
select * from Sample.emp;
all I need to do is go to the MySQL command prompt and enter:
\. TestA1.sql
That's a single, un-nested script and it works fine.
Now, suppose I
Will this work on 3.23?
From what I can read here:
http://dev.mysql.com/doc/refman/4.1/en/date-and-time-functions.html
yes, it should.
Nevertheless, it might be wise to FIRST tell the list your MySQL version
and THEN ask for solutions to a problem...
--
Martijn Tonies
Database Workbench -
-Original Message-
From: Rhino [mailto:[EMAIL PROTECTED]
Sent: Monday, January 16, 2006 09:10
To: mysql
Subject: Nested scripts in MySQL?
Is it possible to run nested scripts in MySQL?
I tried this with success. Create a file that contains lines like this:
\. today.sql
\.
Can anyone help me with an InnoDB problem?
I am trying to create a sequence of related tables using InnoDB but I'm not
having a lot of luck. The script I'm running would work fine in DB2 but the
rules are obviously different in MySQL. I'm hoping someone can tell me how
to modify my script so
Hey folks,
Anyone know a Unix monitoring (text-based) software to check in realtime
the usage of a MySQL server? Like nmon, topas, top or something like
that but for MySQL except mytop?
Thanks
--
Sébastien Roy
Administrateur de Systèmes Senior / Senior System Administrator
PointPub
Excellent, Dirk, that works perfectly!
It's even logical; I might have stumbled on that syntax myself eventually
:-)
Rhino
- Original Message -
From: Dirk Bremer [EMAIL PROTECTED]
To: Rhino [EMAIL PROTECTED]; mysql mysql@lists.mysql.com
Sent: Monday, January 16, 2006 10:29 AM
Rhino [EMAIL PROTECTED] wrote on 01/16/2006 10:30:33 AM:
Can anyone help me with an InnoDB problem?
I am trying to create a sequence of related tables using InnoDB but I'm
not
having a lot of luck. The script I'm running would work fine in DB2 but
the
rules are obviously different in
Hello all.
I am looking into the different back up methods available for
safeguarding my MySQL databases.
Ideally, I would like to have dedicated machine on our network which
all data is dumped to periodically. The tool I would like to use is
MySQL Administrator although I could also use
As it turns out, it is entirely possible to nest scripts to multiple levels.
For instance I now have:
Create_And_Load_Tables.sql
---
\. Create_Tables.sql
\. Load_Tables.sql
---
Create_Tables.sql
---
- Original Message -
From: [EMAIL PROTECTED]
To: Rhino [EMAIL PROTECTED]
Cc: mysql mysql@lists.mysql.com
Sent: Monday, January 16, 2006 10:54 AM
Subject: Re: InnoDB table creation sequence
Rhino [EMAIL PROTECTED] wrote on 01/16/2006 10:30:33 AM:
Can anyone help me with an InnoDB
Furthermore, would it make more sense to have the data dump locally,
and then use a script to move the contents of the dump to a machine
on the network, perhaps even to a machine located on an alternate
network accessed via a second ethernet card?
This would be the simplest approach. That is
Douglas S. Davis wrote:
Hi,
If the following isn't appropriate, please feel free to ignore. The
program I'm referring to is written in Perl and uses a MySQL database,
so I thought perhaps it would be appropriate for this list.
I have a webpage that displays a user's profile by selecting
Hello.
You should check from where mysqladmin takes the 'webuser' value. There
several places:
http://dev.mysql.com/doc/refman/5.0/en/program-options.html
Read this parts of the manual as well:
http://dev.mysql.com/doc/refman/5.0/en/error-access-denied.html
Agreed. OTOH, I would recommend 4.1.15 until they solve the problem
with updates in 4.1.16 apparently not using index prefixes.
--Pete
On Sun, Jan 15, 2006 at 05:07:08PM +, Jocelyn Fournier wrote:
Hi,
Excepted if he found a bug in an older version of MySQL, it's of course
false ! (it
Hi
I'd say that you have an ideal situation to use a Raid level 1 system.
Rick Dwyer [EMAIL PROTECTED] a écrit dans le message de news:
[EMAIL PROTECTED]
Hello all.
I am looking into the different back up methods available for
safeguarding my MySQL databases.
Ideally, I would like to have
Hello,
I would like to understand the mysql administration, is there any good doc for
beginners.
Thank you
--
Bayrouni
Email: [EMAIL PROTECTED]
--
MySQL General Mailing List
For list archives: http://lists.mysql.com/mysql
To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
How about a start in the dev.mysql.com and browse for documentation.
Start with the differences of all kinds of installations ;-) and using
the [.]my.cnf file[s].
Cheers, Danny
Bayrouni wrote:
Hello,
I would like to understand the mysql administration, is there any good
doc for beginners.
Hi, all
I am trying to retrieve the password for one user in my database. When I
say this:
select password from user;
The returned value is not human readable. Any one know how to converted it
to readable format?
Thanks in advance.
Xiaobo
--
Faculty of Computer Science
Dalhousie University
At 15:14 -0400 1/16/06, Xiaobo Chen wrote:
Hi, all
I am trying to retrieve the password for one user in my database. When I
say this:
select password from user;
The returned value is not human readable. Any one know how to converted it
to readable format?
The encryption is one-way, by
Hi, all
How should I copy a table of a database?
Thanks in advance.
Xiaobo
--
Faculty of Computer Science
Dalhousie University
Halifax, Nova Scotia
Canada
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MySQL General Mailing List
For list archives: http://lists.mysql.com/mysql
To unsubscribe:http://lists.mysql.com/[EMAIL
I am attempting to install MySQL-server-5.0.18-0.glibc23 via rpm.
I am getting this message:
warning: MySQL-server-5.0.18-0.glibc23.i386.rpm: V3 DSA signature:
NOKEY, key ID 5072e1f5
error: Failed dependencies:
coreutils is needed by MySQL-server-5.0.18-0.glibc23
perl(DBI) is
suppose I have two tables
zips
zipcode
city_id (matches city_id in cities table)
latitude
longitude
cities
city_id
latitude
longitude
Say I would like to average all the zipcode lat/lons in each city to
get an average latitude and longitude for a city. Then, i would like to
put
Hi,
How do I set things up so I can step into the libmySQL.dll from my C code
using VC6?
I am using the mysql 5.0 windows binary download.
Thanks,
Jan
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[EMAIL PROTECTED] wrote on 01/16/2006 03:46:32 PM:
suppose I have two tables
zips
zipcode
city_id (matches city_id in cities table)
latitude
longitude
cities
city_id
latitude
longitude
Say I would like to average all the zipcode lat/lons in each city to
get an
Xiaobo Chen [EMAIL PROTECTED] wrote on 01/16/2006 03:33:36 PM:
Hi, all
How should I copy a table of a database?
Thanks in advance.
Xiaobo
--
Faculty of Computer Science
Dalhousie University
Halifax, Nova Scotia
Canada
Do you want the data or the structure too?
Just the data:
David Blake wrote:
I am attempting to install MySQL-server-5.0.18-0.glibc23 via rpm.
I am getting this message:
warning: MySQL-server-5.0.18-0.glibc23.i386.rpm: V3 DSA signature:
NOKEY, key ID 5072e1f5
error: Failed dependencies:
coreutils is needed by MySQL-server-5.0.18-0.glibc23
Hi,
2006/1/16, Jan M [EMAIL PROTECTED]:
Hi,
How do I set things up so I can step into the libmySQL.dll from my C code
using VC6?
Binary download for Win32 doesn't include a debug verison of the dll
(AFAIK), so you'll have a recompile by yourself. Download the source,
load the projet, chose
Hi All,
Having a bit of mysqldump trouble again. I've looked over the
documentation (again) and can't seem to find the flag to make
'mysqldump' out put CREATE TABLE IF NOT EXISTS. Any ideas?
Regards,
Michael
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MySQL General Mailing List
For list archives:
DROP TABLE IF NOT EXISTS?
On 1/16/06, Michael Williams [EMAIL PROTECTED] wrote:
Hi All,
Having a bit of mysqldump trouble again. I've looked over the
documentation (again) and can't seem to find the flag to make
'mysqldump' out put CREATE TABLE IF NOT EXISTS. Any ideas?
Regards,
Hi,
There is a debug dll with the binaries (at least there is a version in a
/debug directory) but it seems
to lack a symbol table - certainly VC6 states no debug information when
loading. Dunno why it's provided.
I hoped there was a shortcut where I could avoid building mysql myself (and
Patrick,
people have created files at least up to 500 GB using InnoDB's auto-extend
feature.
What does:
ulimit -a
say about the 'file size' of the user running mysqld?
Have you put some disk space quotas on the directories of the MySQL datadir?
Please correct me if I am wrong, but I think
[EMAIL PROTECTED] wrote:
Views differ from tables in that they cannot be indexed.
I've just started experimenting with derived tables under 4.1.14, and I
had a hunch this was so. Is there any plan to include index support for
views / derived tables?
--
Daniel Kasak
IT Developer
NUS
I don't know if I still fully understand.
Say I have a database with a good mix of myisam and innodb type tables. If
my server has 1 gig of ram and I set key_buffer_size=256M and
innodb_buffer_pool_size=256M then wouldn't mysql be constrained to 512M of the
ram and leave the remaining
I have a timestamp stored in a datetime field. It gets set using Now()
when the record was inserted. I would like to pull the data back out
and have it in UTC time. Is there an easy way to do this? I've been
through the manual and on google but haven't come up with anything.
This is in a PHP
Hi,
I currently have a table with 2 columns, product_id and feature. Each
product_id can have multiple features.
My two columns are:
product_id is type char(13)
feature is type varchar(128)
In order to make sure I don't have the same feature listed twice for a
Slave server should automatically catch up master server when it be started.
When i need use master_pos_wait?
I have a php application that connects with MySQL using:
$SvrConn = @mysql_connect($MySQLServer, $MySQLUser, $MySQLPassword)
where: $MySQLServer='127.0.0.1'
$MySQLUser='dbuser'
MySQLPassword='dbpasswd'
and I can login using the above values. However connect fails:
mysql
I appreciate the suggestion, but I'm not looking to drop anything. I
only want it as a safety net in the event that the table doesn't
already exist. I'm doing syncing of sorts, and I want the CREATE
TABLE IF NOT EXISTS so as not to throw errors in the event that the
table already exists,
Hi Doug,
It is probably failing because you changed the ip address. The security
system in MySQL is based around where a user is coming from. There is
good documentation that is available here
http://dev.mysql.com/doc/refman/5.0/en/privilege-system.html
I've referred to the current manual for
help
- Original Message -
From: wangxu [EMAIL PROTECTED]
To: mysql@lists.mysql.com
Sent: Tuesday, January 10, 2006 2:58 PM
Subject:Do mysql support command-level trigger?
Do mysql support command-level trigger?
At 11:09 +0800 1/17/06, wangxu wrote:
help
It might be that you're getting no answer because we don't know what
you're asking.
- Original Message -
From: wangxu [EMAIL PROTECTED]
To: mysql@lists.mysql.com
Sent: Tuesday, January 10, 2006 2:58 PM
Subject:Do mysql support
sorry.
In general,there are two kinds of trigger's activity.
One is row activity.
The other is SQL-statement activity.
I want to know if mysql support the second.
Do you understand?
thanks
- Original Message -
From: Paul DuBois [EMAIL PROTECTED]
To: wangxu [EMAIL PROTECTED];
Thanks for the link I am glad the site has added manuals for multiple versions.
I think I have access and db privileges set properly. I can (in effect) login to
the server from the host command line using:
mysql -u $MySQLUser -p $MySQLPassword
I showed the user table on the off chance that
Hi Doug,
Can you connect using mysql -u $MySQLUser -p $MySQLPassword -h
$MySQLServer? Without the -h option, the mysql client will connect via
localhost and also via a unix socket rather than tcp/ip, by testing it
as mentioned above, this will ensure it will actually connect to that
host with
At 11:54 +0800 1/17/06, wangxu wrote:
sorry.
In general,there are two kinds of trigger's activity.
One is row activity.
The other is SQL-statement activity.
I want to know if mysql support the second.
Do you understand?
Okay, thanks, that helps.
The answer is that MySQL supports
remove the @ - it surpresses the errors. set your error_reporting to
E_ALL and find out the DB error message with mysql_error.
error_reporting(E_ALL);
$SvrConn = mysql_connect($MySQLServer, $MySQLUser, $MySQLPassword);
if(!$SvrConn)
{
echo 'Failure to connect! Error message returned:
I notice there are one section in the manual:
CONTAINS SQL indicates that the routine does not contain statements that read
or write data.
And that the option is default.
It's true?
If i wouldn't do read or write in routine.What can i do yet?
Hi Grant,
I suggest to change both key fields to Integers.
Numeric keys take less space and are faster.
Your Product_Feature table then may have:
- product_id INT unsigned
- feature INT unsigned
having a Primary Key of 8 bytes i.s.o. 141 bytes.
Thus a smaller index, less disk reads and more
Hi,
It could be usefull when you need to wait the slave to be in sync with
the master, after some specific queries for example.
Regards,
Jocelyn
wangxu a écrit :
Slave server should automatically catch up master server when it be started.
When i need use master_pos_wait?
--
MySQL
Hello.
You can use SHOW PROCESSLIST and slow log to find out what queries
make such a heavy load. See:
http://dev.mysql.com/doc/refman/5.0/en/show-processlist.html
http://dev.mysql.com/doc/refman/5.0/en/slow-query-log.html
Sebastien Roy wrote:
Hey guys,
In my last email I was talking
Hi!
Sorry for my english, im russian.
I have trouble with starting mysql-4.1.16. I compiled it from source, and when
i run:
# mysql_install_db --user=mysql
i've got:
-
ERROR: 1064 You have an error in your SQL syntax; check the manual that
corresponds to your MySQL server version for the
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