Re: help with replication
thanks
On Wed, Aug 18, 2010 at 10:42 PM, a.sm...@ukgrid.net wrote:
Quoting Norman Khine nor...@khine.net:
What is shown from show master status and show slave status after you
have made a change on the master DB?
this is the output:
http://pastie.org/1100610
it does not seem to have any changes and show slave status is just
empty.
have i missed to add something to the master's /etc/mysql/my.cnf options?
So you can see the binlog position on the master has not changed, hence you
wont get any changes replicated to the slave. The show slave status has to
be run on the slave not the master.
Anyway, I believe your problem is your binlog-do-db section on the master,
and also the ignore sections, I think these need to be broken into seperate
lines, with only one value per line. ie:
binlog-do-db = upgrade
binlog-do-db = tracker
this was the issue
You´ll need to completely resetup the syncronsiation after this, as you
currently have out of sync DBs and no data stored in your binlogs...
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Re: MySQL Server has gone away
Hi Jitendra, Check your error log file. Some thing might have gone wrong. Krishna On Wed, Aug 18, 2010 at 9:41 PM, jitendra ranjan jitendra_ran...@yahoo.comwrote: Hi, Whenever i run any commnd on mysql it gives message as below then gives the result successfully. What is the reason of the below error message : ERROR 2006 (HY000): MySQL server has gone away No connection. Trying to reconnect... Connection id:264550 Current database: *** NONE *** Thanks in advance
Re: MySQL Server has gone away
there is high chance of corruption of any data files, but it will clear only after looking of your error file (generated by mysql) can you post the 50 last lines of your mysql error file. On Thu, Aug 19, 2010 at 4:35 PM, Krishna Chandra Prajapati prajapat...@gmail.com wrote: Hi Jitendra, Check your error log file. Some thing might have gone wrong. Krishna On Wed, Aug 18, 2010 at 9:41 PM, jitendra ranjan jitendra_ran...@yahoo.comwrote: Hi, Whenever i run any commnd on mysql it gives message as below then gives the result successfully. What is the reason of the below error message : ERROR 2006 (HY000): MySQL server has gone away No connection. Trying to reconnect... Connection id:264550 Current database: *** NONE *** Thanks in advance -- Best Regards, Prabhat Kumar MySQL DBA My Blog: http://adminlinux.blogspot.com My LinkedIn: http://www.linkedin.com/in/profileprabhat
Re: OpenOffice, Go-OO, ODBC, Offline Data Entry
Hi! Jerry Schwartz wrote: I deal with a somewhat similar situation. Even though we have fast VPN connections among our various offices, each has been afflicted with a different database structure (and software) which they cannot change. What I suggest you do is use the kind of pseudo-synchronization that we do. Use a local copy of the application and database on each PC (MySQL will do fine on even a modest system). Timestamp each record when you create or change it. When the user is back in contact with the office, extract all of the records with timestamps newer than the last synchronization event and update the central database. Is this foolproof? Absolutely not, if there are conflicts between the changes by different users. You'll be stuck with He who write last, writes best; but I think that's as good as it's going to get for you. AIUI, you could prevent that by having a second timestamp, based-on: If based-on in the new record is the same value as changed-on in the central data base, update - if they differ, you had somebody else come first and will now need some manual alignment. How well this works depends upon the type of work. If the users have non-overlapping customers, or whatever, then it won't be too bad. You'll have to judge for yourself. [[...]] HTH, Jörg -- Joerg Bruehe, MySQL Build Team, joerg.bru...@oracle.com ORACLE Deutschland B.V. Co. KG, Komturstrasse 18a, D-12099 Berlin Geschaeftsfuehrer: Juergen Kunz, Marcel v.d. Molen, Alexander v.d. Ven Amtsgericht Muenchen: HRA 95603 -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql?unsub=arch...@jab.org
Workbench strange behavior
Hi ALL, I just start using Workbench 5.2.26 CE and this is a problem I have. When I try to run a query with a case statement, columns with datetime Type shown as BLOB in output window. To see the output data I have to right click inside of the cell, choose Open Value in Viewer and see text. Example: case when dda.cancelled_on is null then '' when dda.cancelled_on is not null then dda.cancelled_on end as 'Cancelled On', Should produce cells with a date of cancelled operation, but it returns blob icons where the dates should be. If I try to Export data as CSV file, the fileds with 'blob' icon instead of the real datetime data are empty. The code works nicely in MySQL monitor or PhPMyAdmin with properly formated CSV exports, It could be some View option that I missed or Bug in the Workbench. Has anybody experienced similar Workbench behavior, any ideas? Thanks. Igor
Fixture List generation using MySQL
Hi, I'm tasked with generating a list of fixtures from a table of teams, whereby each team plays each other home and away. Does anyone have any experience generating such information using MySQL ? Thanks for any input. Regards Neil
Re: Fixture List generation using MySQL
I'm tasked with generating a list of fixtures from a table of teams, whereby each team plays each other home and away. Does anyone have any experience generating such information using MySQL ? Basically ... select a.id,b.id from tbl a join tbl b on a.idb.id; union select a.id,b.id from tbl a join tbl b on a.idb.id; PB - On 8/19/2010 9:12 AM, Tompkins Neil wrote: Hi, I'm tasked with generating a list of fixtures from a table of teams, whereby each team plays each other home and away. Does anyone have any experience generating such information using MySQL ? Thanks for any input. Regards Neil -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql?unsub=arch...@jab.org
Re: MySQL Server has gone away
Here is few lines from log: 100703 22:12:48 mysqld ended 100703 22:23:39 mysqld started 100703 22:23:40 [Warning] option 'max_join_size': unsigned value 18446744073709551615 adjusted to 4294967295 100703 22:23:40 [Warning] option 'max_join_size': unsigned value 18446744073709551615 adjusted to 4294967295 100703 22:23:40 [Warning] option 'thread_cache_size': unsigned value 33554432 adjusted to 16384 100703 22:23:41 InnoDB: Started; log sequence number 0 44054 100703 22:23:41 [Warning] Neither --relay-log nor --relay-log-index were used; so replication may break when this MySQL server acts as a slave and has his hostname changed!! Please use '--relay-log=mysqld-relay-bin' to avoid this problem. 100703 22:23:41 [ERROR] Failed to open the relay log '/var/run/mysqld/mysqld-relay-bin.01' (relay_log_pos 4) 100703 22:23:41 [ERROR] Could not find target log during relay log initialization 100703 22:23:41 [ERROR] Failed to initialize the master info structure 100703 22:23:41 [Note] /usr/libexec/mysqld: ready for connections. Version: '5.0.77-log' socket: '/var/lib/mysql/mysql.sock' port: 3306 Source distribution 100710 22:28:32 [Note] /usr/libexec/mysqld: Normal shutdown 100710 22:28:34 InnoDB: Starting shutdown... 100710 22:28:36 InnoDB: Shutdown completed; log sequence number 0 44054 100710 22:28:36 [Note] /usr/libexec/mysqld: Shutdown complete 100710 22:28:36 mysqld ended 100711 01:42:09 mysqld started 100711 1:42:10 [Warning] option 'max_join_size': unsigned value 18446744073709551615 adjusted to 4294967295 100711 1:42:10 [Warning] option 'max_join_size': unsigned value 18446744073709551615 adjusted to 4294967295 100711 1:42:10 [Warning] option 'thread_cache_size': unsigned value 33554432 adjusted to 16384 100711 1:42:10 InnoDB: Started; log sequence number 0 44054 100711 1:42:11 [Warning] Neither --relay-log nor --relay-log-index were used; so replication may break when this MySQL server acts as a slave and has his hostname changed!! Please use '--relay-log=mysqld-relay-bin' to avoid this problem. 100711 1:42:11 [ERROR] Failed to open the relay log '/var/run/mysqld/mysqld-relay-bin.01' (relay_log_pos 4) 100711 1:42:11 [ERROR] Could not find target log during relay log initialization 100711 1:42:11 [ERROR] Failed to initialize the master info structure 100711 1:42:11 [Note] /usr/libexec/mysqld: ready for connections. Version: '5.0.77-log' socket: '/var/lib/mysql/mysql.sock' port: 3306 Source distribution 100726 9:37:14 [Warning] Warning: Enabling keys got errno 137 on reachout.#sql-d4d_23af19, retrying 100804 10:48:04 [ERROR] /usr/libexec/mysqld: Can't find file: './reachout/tbl_customer_reachout_new.frm' (errno: 13) 100804 10:48:04 [ERROR] /usr/libexec/mysqld: Can't find file: './reachout/tbl_customer_reachout_new.frm' (errno: 13) 100804 10:48:05 [ERROR] /usr/libexec/mysqld: Can't find file: './reachout/tbl_customer_reachout_new.frm' (errno: 13) 100804 10:48:05 [ERROR] /usr/libexec/mysqld: Can't find file: './reachout/tbl_customer_reachout_new.frm' (errno: 13) 100804 10:54:17 [ERROR] /usr/libexec/mysqld: Can't find file: './reachout/tbl_customer_reachout_new.frm' (errno: 13) 100804 10:54:17 [ERROR] /usr/libexec/mysqld: Can't find file: './reachout/tbl_customer_reachout_new.frm' (errno: 13) 100804 10:54:20 [ERROR] /usr/libexec/mysqld: Can't find file: './reachout/tbl_customer_reachout_new.frm' (errno: 13) 100804 10:54:20 [ERROR] /usr/libexec/mysqld: Can't find file: './reachout/tbl_customer_reachout_new.frm' (errno: 13) 100804 10:54:34 [ERROR] /usr/libexec/mysqld: Can't find file: './reachout/tbl_customer_reachout_new.frm' (errno: 13) 100804 10:54:34 [ERROR] /usr/libexec/mysqld: Can't find file: './reachout/tbl_customer_reachout_new.frm' (errno: 13) 100813 19:04:51 [Note] /usr/libexec/mysqld: Normal shutdown 100813 19:04:54 InnoDB: Starting shutdown... 100813 19:04:59 InnoDB: Shutdown completed; log sequence number 0 44054 100813 19:04:59 [Note] /usr/libexec/mysqld: Shutdown complete 100813 19:04:59 mysqld ended 100813 19:07:46 mysqld started 100813 19:07:46 [Warning] option 'max_join_size': unsigned value 18446744073709551615 adjusted to 4294967295 100813 19:07:46 [Warning] option 'max_join_size': unsigned value 18446744073709551615 adjusted to 4294967295 100813 19:07:46 [Warning] option 'thread_cache_size': unsigned value 33554432 adjusted to 16384 100813 19:07:46 InnoDB: Started; log sequence number 0 44054 100813 19:07:47 [Warning] Neither --relay-log nor --relay-log-index were used; so replication may break when this MySQL server acts as a slave and has his hostname changed!! Please use '--relay-log=mysqld-relay-bin' to avoid this problem. 100813 19:07:47 [ERROR] Failed to open the relay log '/var/run/mysqld/mysqld-relay-bin.01' (relay_log_pos 4) 100813 19:07:47 [ERROR] Could not find target log during relay log initialization 100813 19:07:47 [ERROR] Failed to initialize the master info structure 100813 19:07:47 [Note] /usr/libexec/mysqld: ready for
Re: RHEL Auto Start / stop mysql???
In case you have not already discovered it, the clue you need is the `
chkconfig --level 345 mysql on` shell command mentioned in that web page.
In your system it is not enough to have a script in /etc/rc.d/init.d/, you
also need links in your /etc/rc.d/rc{runlevel}.d/ directories.
Regards,
Mike Spreitzer
From: Jaime Crespo Rincón jcre...@warp.es
To: Nunzio Daveri nunziodav...@yahoo.com
Cc: Guifre Bosch Fabregas guifre.bo...@gmail.com,
mysql@lists.mysql.com
Date: 08/13/2010 04:07 AM
Subject:Re: RHEL Auto Start / stop mysql???
2010/8/12 Nunzio Daveri nunziodav...@yahoo.com:
Hi Guifre, thanks for answering. I already have mysql installed and
works just
fine, but I did untar and then go to folder and run. I used what is
called
mysql no-install so no yum, rpm etc.. No files in /etc/init.d and no
startup or
services script since this is using the no-install version.
Nunzio:
You will find an example init.d script on
$MYSQL_INSTAL_DIR/support-files/mysql.server
Follow the instructions corresponding to your distribution to setup
it. Generic instructions can be found here:
http://dev.mysql.com/doc/refman/5.1/en/automatic-start.html
--
Jaime Crespo
MySQL Java Instructor
Warp Networks
http://warp.es
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RE: OpenOffice, Go-OO, ODBC, Offline Data Entry
-Original Message- From: Joerg Bruehe [mailto:joerg.bru...@oracle.com] Sent: Thursday, August 19, 2010 7:25 AM To: mysql@lists.mysql.com Cc: Jerry Schwartz; 'Lord_Devi' Subject: Re: OpenOffice, Go-OO, ODBC, Offline Data Entry Hi! Jerry Schwartz wrote: I deal with a somewhat similar situation. Even though we have fast VPN connections among our various offices, each has been afflicted with a different database structure (and software) which they cannot change. What I suggest you do is use the kind of pseudo-synchronization that we do. Use a local copy of the application and database on each PC (MySQL will do fine on even a modest system). Timestamp each record when you create or change it. When the user is back in contact with the office, extract all of the records with timestamps newer than the last synchronization event and update the central database. Is this foolproof? Absolutely not, if there are conflicts between the changes by different users. You'll be stuck with He who write last, writes best; but I think that's as good as it's going to get for you. AIUI, you could prevent that by having a second timestamp, based-on: If based-on in the new record is the same value as changed-on in the central data base, update - if they differ, you had somebody else come first and will now need some manual alignment. [JS] That's a good thought, if manual editing is practical. ... HTH, Jörg -- Joerg Bruehe, MySQL Build Team, joerg.bru...@oracle.com ORACLE Deutschland B.V. Co. KG, Komturstrasse 18a, D-12099 Berlin Geschaeftsfuehrer: Juergen Kunz, Marcel v.d. Molen, Alexander v.d. Ven Amtsgericht Muenchen: HRA 95603 -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql?unsub=je...@gii.co.jp -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql?unsub=arch...@jab.org
Re: Fixture List generation using MySQL
I'm looking at a routine / script to create the fixtures like team 1 vs team 2 team 3 vs team 4 team 5 vs team 6 etc On Thu, Aug 19, 2010 at 3:44 PM, Peter Brawley peter.braw...@earthlink.net wrote: I'm tasked with generating a list of fixtures from a table of teams, whereby each team plays each other home and away. Does anyone have any experience generating such information using MySQL ? Basically ... select a.id,b.id from tbl a join tbl b on a.idb.id; union select a.id,b.id from tbl a join tbl b on a.idb.id; PB - On 8/19/2010 9:12 AM, Tompkins Neil wrote: Hi, I'm tasked with generating a list of fixtures from a table of teams, whereby each team plays each other home and away. Does anyone have any experience generating such information using MySQL ? Thanks for any input. Regards Neil
Re: Fixture List generation using MySQL
I'm looking at a routine / script to create the fixtures like team 1 vs team 2 team 3 vs team 4 team 5 vs team 6 etc Build the script round the query. PB - On 8/19/2010 12:07 PM, Tompkins Neil wrote: I'm looking at a routine / script to create the fixtures like team 1 vs team 2 team 3 vs team 4 team 5 vs team 6 etc On Thu, Aug 19, 2010 at 3:44 PM, Peter Brawley peter.braw...@earthlink.net wrote: I'm tasked with generating a list of fixtures from a table of teams, whereby each team plays each other home and away. Does anyone have any experience generating such information using MySQL ? Basically ... select a.id,b.id from tbl a join tbl b on a.idb.id; union select a.id,b.id from tbl a join tbl b on a.idb.id; PB - On 8/19/2010 9:12 AM, Tompkins Neil wrote: Hi, I'm tasked with generating a list of fixtures from a table of teams, whereby each team plays each other home and away. Does anyone have any experience generating such information using MySQL ? Thanks for any input. Regards Neil -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql?unsub=arch...@jab.org
RE: Fixture List generation using MySQL
That's almost a cartesean product; except you just want to eliminate results where a team would be paired up with itself. create table teams ( id serial ); Query OK, 0 rows affected (0.02 sec) insert into teams values (), (), (), (); Query OK, 4 rows affected (0.05 sec) Records: 4 Duplicates: 0 Warnings: 0 [ff] test select * from teams; ++ | id | ++ | 1 | | 2 | | 3 | | 4 | ++ 4 rows in set (0.00 sec) select * from locations; +--+ | name | +--+ | home | | away | +--+ 2 rows in set (0.00 sec) select * from teams t1 JOIN teams t2; +++ | id | id | +++ | 1 | 1 | | 2 | 1 | | 3 | 1 | | 4 | 1 | | 1 | 2 | | 2 | 2 | | 3 | 2 | | 4 | 2 | | 1 | 3 | | 2 | 3 | | 3 | 3 | | 4 | 3 | | 1 | 4 | | 2 | 4 | | 3 | 4 | | 4 | 4 | +++ 16 rows in set (0.00 sec) With no join condition, we every possible combination of t1 paired with t2; however, this leads to the undesireable result that we have combinations like team 4 vs team 4. So you just need to add a condition to prevent those rows from showing up: select * from teams t1 JOIN teams t2 ON t1.id!=t2.id; +++ | id | id | +++ | 2 | 1 | | 3 | 1 | | 4 | 1 | | 1 | 2 | | 3 | 2 | | 4 | 2 | | 1 | 3 | | 2 | 3 | | 4 | 3 | | 1 | 4 | | 2 | 4 | | 3 | 4 | +++ 12 rows in set (0.10 sec) Notice you get both combinations of 2 vs 1 and 1 vs 2, so you could just call whichever team is in the first column as the home team. Regards, Gavin Towey -Original Message- From: Tompkins Neil [mailto:neil.tompk...@googlemail.com] Sent: Thursday, August 19, 2010 10:07 AM To: [MySQL] Subject: Re: Fixture List generation using MySQL I'm looking at a routine / script to create the fixtures like team 1 vs team 2 team 3 vs team 4 team 5 vs team 6 etc On Thu, Aug 19, 2010 at 3:44 PM, Peter Brawley peter.braw...@earthlink.net wrote: I'm tasked with generating a list of fixtures from a table of teams, whereby each team plays each other home and away. Does anyone have any experience generating such information using MySQL ? Basically ... select a.id,b.id from tbl a join tbl b on a.idb.id; union select a.id,b.id from tbl a join tbl b on a.idb.id; PB - On 8/19/2010 9:12 AM, Tompkins Neil wrote: Hi, I'm tasked with generating a list of fixtures from a table of teams, whereby each team plays each other home and away. Does anyone have any experience generating such information using MySQL ? Thanks for any input. Regards Neil This message contains confidential information and is intended only for the individual named. If you are not the named addressee, you are notified that reviewing, disseminating, disclosing, copying or distributing this e-mail is strictly prohibited. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. E-mail transmission cannot be guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any loss or damage caused by viruses or errors or omissions in the contents of this message, which arise as a result of e-mail transmission. [FriendFinder Networks, Inc., 220 Humbolt court, Sunnyvale, CA 94089, USA, FriendFinder.com -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql?unsub=arch...@jab.org
Re: Fixture List generation using MySQL
One possible approach: In your script, generate some ordered iterable object with an index of your team names. Step through it in a loop and check the counter; match odd teams with even teams and generate your queries. You could probably do this on the server end as well as the logic is quite simple. Regards, -- Burhan Khalid Sent from my BlackBerry® smartphone from Wataniya Telecom -Original Message- From: Peter Brawley peter.braw...@earthlink.net Date: Thu, 19 Aug 2010 12:48:18 To: mysql@lists.mysql.com Reply-To: peter.braw...@earthlink.net Subject: Re: Fixture List generation using MySQL I'm looking at a routine / script to create the fixtures like team 1 vs team 2 team 3 vs team 4 team 5 vs team 6 etc Build the script round the query. PB - On 8/19/2010 12:07 PM, Tompkins Neil wrote: I'm looking at a routine / script to create the fixtures like team 1 vs team 2 team 3 vs team 4 team 5 vs team 6 etc On Thu, Aug 19, 2010 at 3:44 PM, Peter Brawley peter.braw...@earthlink.net wrote: I'm tasked with generating a list of fixtures from a table of teams, whereby each team plays each other home and away. Does anyone have any experience generating such information using MySQL ? Basically ... select a.id,b.id from tbl a join tbl b on a.idb.id; union select a.id,b.id from tbl a join tbl b on a.idb.id; PB - On 8/19/2010 9:12 AM, Tompkins Neil wrote: Hi, I'm tasked with generating a list of fixtures from a table of teams, whereby each team plays each other home and away. Does anyone have any experience generating such information using MySQL ? Thanks for any input. Regards Neil -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql?unsub=burhan.kha...@gmail.com
Re: Fixture List generation using MySQL
I have written this in both C and Java. It is very complex as, in real life, you want to balance home and away, sequence the games so that the home or away games are spread throughout the schedule, accomodate partial rounds (10 team league where each team is to play 13 games), accomodate odd numbers of teams (7,9,etc.) and create games for teams with short schedules and a lot more. In addition, this is only the beginning as, once you have a playing schedule, you need to assign the games to space which is much more complicated than creating the schedule. Reporting the games is rather trivial except for situations where games have been moved, teams have dropped out or been forfeited out, etc. Thanks, Carl Gavin - Sorry, didn't mean to send it to you privately... itchy trigger finger. - Original Message - From: Gavin Towey gto...@ffn.com To: Tompkins Neil neil.tompk...@googlemail.com; [MySQL] mysql@lists.mysql.com Sent: Thursday, August 19, 2010 1:50 PM Subject: RE: Fixture List generation using MySQL That's almost a cartesean product; except you just want to eliminate results where a team would be paired up with itself. create table teams ( id serial ); Query OK, 0 rows affected (0.02 sec) insert into teams values (), (), (), (); Query OK, 4 rows affected (0.05 sec) Records: 4 Duplicates: 0 Warnings: 0 [ff] test select * from teams; ++ | id | ++ | 1 | | 2 | | 3 | | 4 | ++ 4 rows in set (0.00 sec) select * from locations; +--+ | name | +--+ | home | | away | +--+ 2 rows in set (0.00 sec) select * from teams t1 JOIN teams t2; +++ | id | id | +++ | 1 | 1 | | 2 | 1 | | 3 | 1 | | 4 | 1 | | 1 | 2 | | 2 | 2 | | 3 | 2 | | 4 | 2 | | 1 | 3 | | 2 | 3 | | 3 | 3 | | 4 | 3 | | 1 | 4 | | 2 | 4 | | 3 | 4 | | 4 | 4 | +++ 16 rows in set (0.00 sec) With no join condition, we every possible combination of t1 paired with t2; however, this leads to the undesireable result that we have combinations like team 4 vs team 4. So you just need to add a condition to prevent those rows from showing up: select * from teams t1 JOIN teams t2 ON t1.id!=t2.id; +++ | id | id | +++ | 2 | 1 | | 3 | 1 | | 4 | 1 | | 1 | 2 | | 3 | 2 | | 4 | 2 | | 1 | 3 | | 2 | 3 | | 4 | 3 | | 1 | 4 | | 2 | 4 | | 3 | 4 | +++ 12 rows in set (0.10 sec) Notice you get both combinations of 2 vs 1 and 1 vs 2, so you could just call whichever team is in the first column as the home team. Regards, Gavin Towey -Original Message- From: Tompkins Neil [mailto:neil.tompk...@googlemail.com] Sent: Thursday, August 19, 2010 10:07 AM To: [MySQL] Subject: Re: Fixture List generation using MySQL I'm looking at a routine / script to create the fixtures like team 1 vs team 2 team 3 vs team 4 team 5 vs team 6 etc On Thu, Aug 19, 2010 at 3:44 PM, Peter Brawley peter.braw...@earthlink.net wrote: I'm tasked with generating a list of fixtures from a table of teams, whereby each team plays each other home and away. Does anyone have any experience generating such information using MySQL ? Basically ... select a.id,b.id from tbl a join tbl b on a.idb.id; union select a.id,b.id from tbl a join tbl b on a.idb.id; PB - On 8/19/2010 9:12 AM, Tompkins Neil wrote: Hi, I'm tasked with generating a list of fixtures from a table of teams, whereby each team plays each other home and away. Does anyone have any experience generating such information using MySQL ? Thanks for any input. Regards Neil This message contains confidential information and is intended only for the individual named. If you are not the named addressee, you are notified that reviewing, disseminating, disclosing, copying or distributing this e-mail is strictly prohibited. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. E-mail transmission cannot be guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any loss or damage caused by viruses or errors or omissions in the contents of this message, which arise as a result of e-mail transmission. [FriendFinder Networks, Inc., 220 Humbolt court, Sunnyvale, CA 94089, USA, FriendFinder.com -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql?unsub=c...@etrak-plus.com -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql?unsub=arch...@jab.org
MySQL Community Server 5.1.50 has been released
Dear MySQL users, MySQL Community Server 5.1.50, a new version of the popular Open Source Database Management System, has been released. MySQL 5.1.50 is recommended for use on production systems. For an overview of what's new in MySQL 5.1, please see http://dev.mysql.com/doc/refman/5.1/en/mysql-nutshell.html For information on installing MySQL 5.1.50 on new servers or upgrading to MySQL 5.1.50 from previous MySQL releases, please see http://dev.mysql.com/doc/refman/5.1/en/installing.html MySQL Server is available in source and binary form for a number of platforms from our download pages at http://dev.mysql.com/downloads/ Not all mirror sites may be up to date at this point in time, so if you can't find this version on some mirror, please try again later or choose another download site. We welcome and appreciate your feedback, bug reports, bug fixes, patches, etc.: http://forge.mysql.com/wiki/Contributing For information on open issues in MySQL 5.1, please see the errata list at http://dev.mysql.com/doc/refman/5.1/en/open-bugs.html The following section lists the changes in the MySQL source code since the previous released version of MySQL 5.1. It may also be viewed online at http://dev.mysql.com/doc/refman/5.1/en/news-5-1-50.html Enjoy! === C.1.1. Changes in MySQL 5.1.50 (03 August 2010) InnoDB Notes: * InnoDB Plugin has been upgraded to version 1.0.11. This version is considered of General Availability (GA) quality. In this release, the InnoDB Plugin is included in source and binary distributions, except RHEL3, RHEL4, SuSE 9 (x86, x86_64, ia64), generic Linux RPM packages, and any builds produced with the icc compiler. It also does not work for FreeBSD 6 and HP-UX or for Linux on generic ia64. Bugs fixed: * Important Change: Replication: The LOAD DATA INFILE statement is now considered unsafe for statement-based replication. When using statement-based logging mode, the statement now produces a warning; when using mixed-format logging, the statement is made using the row-based format. (Bug#34283: http://bugs.mysql.com/bug.php?id=34283) * Partitioning: UPDATE and INSERT statements affecting partitioned tables performed poorly when using row-based replication. (Bug#52517: http://bugs.mysql.com/bug.php?id=52517) * Partitioning: INSERT ON DUPLICATE KEY UPDATE statements performed poorly on tables having many partitions. This was because the handler function for reading a row from a specific index was not optimized in the partitioning handler. (Bug#52455: http://bugs.mysql.com/bug.php?id=52455) * The server could crash on shutdown, if started with --innodb-use-system-malloc=0. (Bug#55581: http://bugs.mysql.com/bug.php?id=55581) * GROUP BY operations used max_sort_length inconsistently. (Bug#55188: http://bugs.mysql.com/bug.php?id=55188) * Building MySQL on Solaris 8 x86 failed when using Sun Studio due to gcc inline assembler code. (Bug#55061: http://bugs.mysql.com/bug.php?id=55061) * In debug builds, an assertion could be raised when the server tried to send an OK packet to the client after having failed to detect errors during processing of the WHERE condition of an UPDATE statement. (Bug#54734: http://bugs.mysql.com/bug.php?id=54734) * The database server could crash when renaming a table that had active transactions. (This issue only affected the database server when built for debugging.) (Bug#54453: http://bugs.mysql.com/bug.php?id=54453) * The server could crash during the recovery phase of startup, if it previously crashed while inserting BLOB or other large columns that use off-page storage into an InnoDB table created with ROW_FORMAT=REDUNDANT or ROW_FORMAT=COMPACT. (Bug#54408: http://bugs.mysql.com/bug.php?id=54408) * For an InnoDB table created with ROW_FORMAT=COMPRESSED or ROW_FORMAT=DYNAMIC, a query using the READ UNCOMMITTED isolation level could cause the server to stop with an assertion error, if BLOB or other large columns that use off-page storage were being inserted at the same time. (Bug#54358: http://bugs.mysql.com/bug.php?id=54358) * A client could supply data in chunks to a prepared statement parameter other than of type TEXT or BLOB using the mysql_stmt_send_long_data() C API function (or COM_STMT_SEND_LONG_DATA command). This led to a crash because other data types are not valid for long data. (Bug#54041: http://bugs.mysql.com/bug.php?id=54041) * mysql_secure_installation did not properly identify local accounts and could incorrectly remove nonlocal root accounts. (Bug#54004:
RE: OpenOffice, Go-OO, ODBC, Offline Data Entry
Is this foolproof? Absolutely not, if there are conflicts between the changes by different users. You'll be stuck with He who write last, writes best; but I think that's as good as it's going to get for you. AIUI, you could prevent that by having a second timestamp, based-on: If based-on in the new record is the same value as changed-on in the central data base, update - if they differ, you had somebody else come first and will now need some manual alignment. [JS] That's a good thought, if manual editing is practical. ... Hrmm I see where you are going with that. I am thankful for the most part then that I really only have 4 workers who will be using this database. I have never done this kind of database programming before, so this should prove to be interesting ;) Thank you very much for the advice guys. At least now I know something like what I need is actually possible. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql?unsub=arch...@jab.org
Seems like an easy query, but isn't to me. Help?
I hope I've come to right place, and I'm asking in the right way -- please accept my apologies if not. We have some dates missing and I need to populate those fields with dates from the record just before them. I've gotten this far: SELECT UUid, MIN(DDenteredDate) minDate FROM UUtable JOIN DDdetail on DDid = UUid WHERE UUdate IS NULL GROUP BY UUid; I can make this a sub-query and get the UUid of the record that I want to copy UUdate from: SELECT sub.UUid-1 as previous, sub.* FROM ( SELECT UUid, MIN(DDenteredDate) minDate FROM UUtable JOIN DDdetail on DDid = UUid WHERE UUdate IS NULL GROUP BY UUid; ) as sub; In this case, the field 'previous' is the UUid that I want to copy the UUdate from and sub.UUid is where I want to copy to. Does that even make sense? Thanks, George
5.1.x review
There are so many versions of 5.1, Is there some review or recommendations for a stable one? thanks
