http://www.sagewire.org/Blogs and forums for Java, PHP, MySQL, and more.enhttp://www.sagewire.org/mysql-database/That-works-faster-in-sql-for-creation-of-an-1903063.aspxHello all That works faster in Mysql for creation of an index: CREATE INDEX or ALTER TABLE tab ADD INDEXThanks.http://www.sagewire.org/mysql-database/That-works-faster-in-sql-for-creation-of-an-1903063.aspxrss@sagewire.orgFri, 24 Aug 2007 13:35:56 GMThttp://www.sagewire.org/mysql-database/Help-with-counting-total-items-using-hierarchical-1872996.aspxI'm having trouble coming up with a query to count the number of total items each subcategory with the lowest cost (CPU item). I'd like to be able to display the total in my pages like so using PHP. Automotive (4 items) - Cars (2 items) - Trucks (2 items) - Vans (0 items) Electronics (6 items) - Digital Cameras (0 items) - Portable Audio (3 items) - Home Theatre & Projectors (0 items) - TV, DVD & VCR Players (3 items) - Sound Systems & Components (0 items)At the moment I am usi...http://www.sagewire.org/mysql-database/Help-with-counting-total-items-using-hierarchical-1872996.aspxrss@sagewire.orgWed, 01 Aug 2007 10:16:49 GMThttp://www.sagewire.org/mysql-database/2014-Commands-out-of-sync-you-can-not-run-1865065.aspxHello All, I was searching for a response about this topic but none get the right answare, I hope I get help from you on this. :) I trying to do an insert using a stored procedure to rely the charge on the db but every type I run the call from my web page ussing PHP 5.X I get the same error. This is what I'm doing: ______________________________________________________________________________________________ $link = mysql_connect( DB_HOST, DB_USER, DB_PASSWORD, true, 131074); mysq...http://www.sagewire.org/mysql-database/2014-Commands-out-of-sync-you-can-not-run-1865065.aspxrss@sagewire.orgTue, 31 Jul 2007 03:21:11 GMThttp://www.sagewire.org/mysql-database/Database-as-Symbolic-Link-What-am-missing-1863777.aspxHi, I have done this before so I do not see what I could doing wrong here. I'm running mysql 5x on freebsd. I'm using the default data directory of "/var/db/mysql" In there I have several dozen mysql datasbases that are functioning perfectly. I am trying to add a database which will be stored on a different drive, therefore the entry in "/var/db/mysql" should be a symbolic link With mysql running I go... mkdir /sata2/database/d1 chmod 700 /sata2/database/d1 chown mysql:mysql /...http://www.sagewire.org/mysql-database/Database-as-Symbolic-Link-What-am-missing-1863777.aspxrss@sagewire.orgWed, 25 Jul 2007 13:21:38 GMThttp://www.sagewire.org/mysql-database/mysql-to-store-file-1852978.aspxHi If I use mysql to store the file. How can I make a link for the user to download that file? thanks from Peter (cmk128@xxxxxxxxxxx)http://www.sagewire.org/mysql-database/mysql-to-store-file-1852978.aspxrss@sagewire.orgMon, 23 Jul 2007 15:50:40 GMThttp://www.sagewire.org/mysql-database/select-from-table-1850925.aspxHi, Can anyone show me how to do the following: From a table I'd like to retrieve the following: company and websites. When I do a select on on this table i will get company 1 - website 1 company 1 - website 2 company 1 - webiste 3 company 2 - website 1 company 2 - website 2 etc. But what I'd like is: company 1 website 1 website 2 website 3 company 2 website 1 website 2 etc. Now I use the following select statement: $query="select company, domainna...http://www.sagewire.org/mysql-database/select-from-table-1850925.aspxrss@sagewire.orgMon, 23 Jul 2007 12:48:40 GMThttp://www.sagewire.org/mysql-database/Howd-you-like-Million-Sites-linking-to-your-ad-1850374.aspxDiscover the power of the Blog Blaster! Brandnew software revolutionizes the power of online advertising -never seen before!- BRAND NEW FOR 2007! How'd you like 2 Million Sites linking to your ad ? Weblog or blog population is exploding around the world, resembling the growth of e-mail users in the 1990s. Post your ads where people read them! - What if you could place your ad on all these sites ? Right, that'd mean you would've millions of sites linking to your ad - and my ide...http://www.sagewire.org/mysql-database/Howd-you-like-Million-Sites-linking-to-your-ad-1850374.aspxrss@sagewire.orgThu, 12 Jul 2007 22:00:02 GMThttp://www.sagewire.org/mysql-database/slow-database-retrieval-1820576.aspxi am wondering why my database retrieval becomes too slow...we set up a new server (ubuntu, breezy badger) machine where we transferred all our files from the old server.. Our new server uses Asus p5pe-vm motherboard and an Intel Pentium D 3.0Ghz processor, compared to the old one where we uses asrock motherboard and AMD Duron. Both has the same version of mysql installed... To summarized, both machine has the same configuration except for some hardware changes and the version of the Ub...http://www.sagewire.org/mysql-database/slow-database-retrieval-1820576.aspxrss@sagewire.orgThu, 12 Jul 2007 05:07:34 GMThttp://www.sagewire.org/mysql-database/Compare-record-in-two-tables-return-fields-that-do-1847459.aspxDoes anyone know if there is an easy way to compare a row from table a, to a row in table b with the same structure/field names and return those fields which do not match? I have table_a storing the originally submitted applicant information, and table_b storing a version that can be changed. When a user makes a change I'd like to compare it to the original table to see what fields were changed, preferably without opening the row from both tables and going field by field in code to see ...http://www.sagewire.org/mysql-database/Compare-record-in-two-tables-return-fields-that-do-1847459.aspxrss@sagewire.orgMon, 09 Jul 2007 16:11:54 GMThttp://www.sagewire.org/mysql-database/Simple-MySQL-Index-1836537.aspxI have a single table which I'd like to search on a unique column varchar(15) that may have some nulls. Employee social club member no, some employees have a number and others do not. Those that do have a number will all have a unique number. I had added an index using: ALTER TABLE employees ADD INDEX(emp_socialclubno); However when I run: mysql> explain select employeeid from employees where emp_socialclubno=103833988; +----+-------------+------------+------+---------------+------+...http://www.sagewire.org/mysql-database/Simple-MySQL-Index-1836537.aspxrss@sagewire.orgThu, 05 Jul 2007 13:50:34 GMThttp://www.sagewire.org/mysql-database/Employee-Search-1816636.aspxSplitz General Marketing - Employee Search Seeking employed/unemployed persons for a part-time positon. Must be hard working and willing to learn. Good paychecks, allowances and higher job opputunites are applicable to this position. If you are interested in this job offer please contact us for more information. Subject to our satisfaction with your resume you will be filed in. Principals only. Recruiters, please do not contact this job poster. Greg Maglione Recruiting Officer/Advertiser Spl...http://www.sagewire.org/mysql-database/Employee-Search-1816636.aspxrss@sagewire.orgSat, 30 Jun 2007 02:03:34 GMThttp://www.sagewire.org/mysql-database/mysqldump-select-query-1834856.aspxI am trying to do a dump for a 2 gig table... I'd like to dump the tables in portions so that it's a little easier to work with... Can somebody suggest a way to do a mysqldump table query ie.. mysqldump -u user -p database="MYDATABASE" Query="SELECT * FROM TABLE WHERE State='NV';" I'm pretty sure this is possible... I have no idea how to do it. Thanks in advance.http://www.sagewire.org/mysql-database/mysqldump-select-query-1834856.aspxrss@sagewire.orgFri, 29 Jun 2007 03:32:44 GMThttp://www.sagewire.org/mysql-database/SQLMAIL-for-MYSQL-1831468.aspxHi, I have a large db app for handling orders etc. I'd like to offer our customers the ability to track their orders via email. i.e. they submit an email to track@xxxxxxxxxxx Subject line = TRACK BODY = ORDER NUMBER (1 per line) As the system receives the email, it processes some SQL and returns an email with their order information. How can this be achieved ? I am using ASP & MYSQL Thanks Davidhttp://www.sagewire.org/mysql-database/SQLMAIL-for-MYSQL-1831468.aspxrss@sagewire.orgMon, 25 Jun 2007 19:14:16 GMThttp://www.sagewire.org/mysql-database/inserting-unique-value-1826796.aspxI need to insert a unique value into a (not auto-increment) column. I try insert into idtest (val) values ((select max(val) from idtest)+1); but I get ERROR 1093 (HY000): You can not specify target table 'idtest' for update in FROM clause - what is the correct way to do this? Regards, Runehttp://www.sagewire.org/mysql-database/inserting-unique-value-1826796.aspxrss@sagewire.orgFri, 22 Jun 2007 16:24:30 GMThttp://www.sagewire.org/mysql-database/creating-table-for-rails-1825657.aspxI'm working from [code]<http://www.oracle.com/technology/pub/articles/haefel- oracle-ruby.html>[/code],'d like to adapt the SQL for MySQL, please. Yes, I know, that's oracle wheras I'm using MySQL. This website happens to be the best rails tutorial I can find for my purposes, and I'd like to follow along with it. Here's what's happening: [thufir@xxxxxxxxxxx ~]$ [thufir@xxxxxxxxxxx ~]$ mysql -u feeds -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Y...http://www.sagewire.org/mysql-database/creating-table-for-rails-1825657.aspxrss@sagewire.orgThu, 21 Jun 2007 04:30:25 GMThttp://www.sagewire.org/mysql-database/STOPPING-SERVER-from-pid-file-1813402.aspxdear everyone, we installed a mysql vr standard-4.11.22a-pc on a machine with ubuntu breezy badger as os..after the installation we are trying to start the server by typing :bin/safe_mysqld...but it shows us a msg whch states Starting mysqld daemon with databases from /usr/local/mysql- standard-4.11.22a-pc-linux-gnu-i686-glibc23/data followed by... 'STOPPING SERVER from pid file /usr/local/mysql-standard-4.11.22a-pc- linux-gnu-i686-glibc23/data/linuxserver.pid mysql ended' I have...http://www.sagewire.org/mysql-database/STOPPING-SERVER-from-pid-file-1813402.aspxrss@sagewire.orgThu, 14 Jun 2007 03:22:26 GMThttp://www.sagewire.org/mysql-database/UNION-LIMIT-and-ORDER-BY-1599274.aspxI have trying to write a query that seems like it should be simple but for some reason my attempts aren't working. This is really a general SQL quesion and does not pertain to MySQL but I could not find a generic database discussion group except on on advancement and theory and this is really a basic query construction question. Just say I have a table with three columns, name, date, score and these represent the test scores for various people. Each person can take the test as many ti...http://www.sagewire.org/mysql-database/UNION-LIMIT-and-ORDER-BY-1599274.aspxrss@sagewire.orgFri, 01 Jun 2007 14:47:06 GMThttp://www.sagewire.org/mysql-database/mySQL-backup-with-SQLyog-1599260.aspxHey all, This is my first post to a newsgroup so forgive me if it's in the wrong place... I have setup a local backup server for my company's website, and can sync the two DB's no problem (the local and the "interweb" one) with SQLyog. But I'm not sure if the following is possible and (if so) how to do it: I sync the local DB with the live DB every morning at 5:00 a.m. Let's say the live site then goes down at 4:00 p.m., so there have been a lot of changes made to the DB since ...http://www.sagewire.org/mysql-database/mySQL-backup-with-SQLyog-1599260.aspxrss@sagewire.orgMon, 21 May 2007 13:39:08 GMThttp://www.sagewire.org/mysql-database/finding-duplicate-fields-159322.aspxThis may be a particularly dumb question, but I'm wrestling with it anyways. Is there a way, to discern a duplicate field among records in a table. For example, suppose I've a table such that: CREATE TABLE `sometable` ( `id` int(11) NOT NULL auto_increment, `sometext` varchar(80) NOT NULL default '', PRIMARY KEY (`id`) ) I want to find all records where `sometext` = `sometext` in another record. That is, I want to find those records where there is more than one instance of...http://www.sagewire.org/mysql-database/finding-duplicate-fields-159322.aspxrss@sagewire.orgSat, 19 May 2007 16:08:22 GMThttp://www.sagewire.org/mysql-database/mysql-intersect-help-1216599.aspxHi, I am facing problem while excuting a mysql query. My problem is as follows- I have two tables object_1 and object_2. The structure of object_1 is object_id name address ------------ ---------- ------------ 1 abc xyz 2 pqr xyz 3 lmn zzz The structure of object_2 is object_id tag_id -------------- ---------- 1 2 1 3 2 2 object_id is the for...http://www.sagewire.org/mysql-database/mysql-intersect-help-1216599.aspxrss@sagewire.orgMon, 14 May 2007 17:03:59 GMThttp://www.sagewire.org/mysql-database/SelectCount-not-showing-me-my-recordspermissions-1217246.aspxI imported 600,000 records from SQL Server 2005 to mySQL. I know they are in there -- I just can not see them! When I do a SELECT, it processes for a while, and then returns nothing. Same with a count, it sits there processing, and then returns a '0' However when I do the same on a table I know has no rows, it definitely comes back right away. I'm logged in as root. Do I need to assign myself some permissions to see these records? And the count numbers?http://www.sagewire.org/mysql-database/SelectCount-not-showing-me-my-recordspermissions-1217246.aspxrss@sagewire.orgSun, 13 May 2007 16:44:07 GMThttp://www.sagewire.org/mysql-database/mysqldump-produces-an-empty-file-1215772.aspxhi everyone! I am having a problem with mysqldump.i am running this script from the shell root@xxxxxxxxxxx:/usr/local/mysql#bin/mysqldump u im_backup --opt inventory > /home/all/sqlbu/inv_'date +%F.sql (user=imbackup dbase name = inventory) i do not know what am I missing or what's the problem with this line since it generates only an empty file... I created the user im_backup granting all privileges. There was no error messages too.. what's the problem w/ this? I really'd appre...http://www.sagewire.org/mysql-database/mysqldump-produces-an-empty-file-1215772.aspxrss@sagewire.orgSat, 12 May 2007 01:23:25 GMThttp://www.sagewire.org/mysql-database/Connection-life-1216897.aspxIf I establish a connection, how long will that connection live without being used? Is there a parameter somewhere in MySQL that determines this? Thanks.http://www.sagewire.org/mysql-database/Connection-life-1216897.aspxrss@sagewire.orgFri, 11 May 2007 18:58:00 GMThttp://www.sagewire.org/mysql-database/JOINS-andor-INTERSECTS-1194207.aspxI'm trying to create a query to find missing values in a table. Example table: [code]<PRE>[/code] COL1 COL2 ---- ---- A 1 A 2 A 3 A 4 B 1 B 3 C 2 C 4I want my output to be: COL1 COL2 ---- ---- B 2 B 4 C 1 C 3 [code]</PRE>[/code] I thought I could do this with some outer joins but I can not seem to get even close. Any suggestions? Thanks!http://www.sagewire.org/mysql-database/JOINS-andor-INTERSECTS-1194207.aspxrss@sagewire.orgMon, 07 May 2007 15:53:34 GMThttp://www.sagewire.org/mysql-database/Regenerate-Nested-Set-using-parentid-structure-1043661.aspxHello, I have got a Nested Set structure in MySQL 4 here with - id - lft - rgt - parent_id - root_id wrote in message some test scripts and I discovered that the Nested Set (the structure with lft and rgt nodes) is broken, there are some duplicate nodes and other really bad stuff. Luckily, the dude who developed the system has a parent_id-Structure in the database too, and I'm pretty sure that the parent_id- relationships are correct. So, now my question: I'd need a Query or...http://www.sagewire.org/mysql-database/Regenerate-Nested-Set-using-parentid-structure-1043661.aspxrss@sagewire.orgMon, 30 Apr 2007 11:32:34 GMThttp://www.sagewire.org/mysql-database/Grant-lock-tables-on-single-table-gives-ERROR-1144-1046439.aspxHi, Tested on MySQL 4.1.20 and 5.0.33 with similar results. I do not understand why I cannot grant LOCK TABLES on a single table, while granting LOCK TABLES on all tables work fine. mysql> SELECT VERSION()\G *************************** 1. row *************************** VERSION(): 4.1.20 1 row in set (0.00 sec) mysql> SELECT CURRENT_USER()\G *************************** 1. row *************************** CURRENT_USER(): root@xxxxxxxxxxx 1 row in set (0.02 sec) mysql> CREATE D...http://www.sagewire.org/mysql-database/Grant-lock-tables-on-single-table-gives-ERROR-1144-1046439.aspxrss@sagewire.orgFri, 27 Apr 2007 06:27:46 GMThttp://www.sagewire.org/mysql-database/DELETE-with-related-table-944274.aspxI have a table (tableA), with a data field (saved as a VARCHAR in YYYY-MM-DD). I have a second table, tableB, which has a field with an int field which refers to the ID of tableA (or is null). I call this field tableB.idA I am trying to delete rows in tableA where the date is less than a specified value AND there is no reference to said row in tableB. But how to specify this in SQL. I tried : DELETE FROM tableA WHERE tableA.date <'2007-01-01' and tableB.idA!= tableA.id; on...http://www.sagewire.org/mysql-database/DELETE-with-related-table-944274.aspxrss@sagewire.orgWed, 25 Apr 2007 10:57:22 GMThttp://www.sagewire.org/mysql-database/database-recovery-and-import-934046.aspxHello, I have been given the job of recovering a database. It's mysql, version unknown but i'd suspect probably 3 maybe 4 certainly not 5. Apparently the host provider where this was did not set up the backups right, because the guy gave me the db files not database dumps and I am uncertain what to do with them. I'd like to bring them in to a mysql installation and take a look at the data contained. If it's valid i.e. what has been requested i'd like to do a mysqldump on it, the...http://www.sagewire.org/mysql-database/database-recovery-and-import-934046.aspxrss@sagewire.orgTue, 24 Apr 2007 00:18:00 GMThttp://www.sagewire.org/mysql-database/percentage-in-sql-query-697172.aspxI have a table of score which are 1's and 0's. How'd I go about writing a query to get the percentage of 1's against the toal number of records? Many thankshttp://www.sagewire.org/mysql-database/percentage-in-sql-query-697172.aspxrss@sagewire.orgFri, 20 Apr 2007 16:01:36 GMThttp://www.sagewire.org/mysql-database/Alter-combination-of-existing-columns-as-unique-ke-696703.aspxTo alter 1 column to a unique key, ALTER TABLE user MODIFY COLUMN id INT NOT NULL UNIQUE; But how to set combination of 2 columns as a unique key? Individual keys aren't unique, but combination is. TIA, Jameshttp://www.sagewire.org/mysql-database/Alter-combination-of-existing-columns-as-unique-ke-696703.aspxrss@sagewire.orgThu, 19 Apr 2007 23:48:31 GMThttp://www.sagewire.org/mysql-database/CONTRACT-EMPLYER-SEEKS-EXPERIENCED-PHPMY-SQLDATABA-694337.aspxHELLO PLEASE-DOPER'S., LAMERS, LAZY FOLKS AND BS ARTISTS NEED NOT RESPOND I SEEK HELP WITH THE BACK DOOR STUFF- THETH MY SQL INTEGRATION AND THE SETTING UP OF DATABASES/ INTEGRATION OF PHP SCRIPTS WITH MY SQL wrote in message MY WEBSITE WITH MACROMEDIA USING STRICT XHTML,CSS I HAVE A TON OF SCRIPTS AND I SEEK THE BEST FOR PLUG AND PLAY WITHIN MY SITE I'd CONSIDER RUNNING MY OWN SERVER TO GET AWAY FROM HAVING TO USE THAT CONTROL PANEL IN' GO DADDY' I HAVE A ROUTER AND I HAVE A SUI...http://www.sagewire.org/mysql-database/CONTRACT-EMPLYER-SEEKS-EXPERIENCED-PHPMY-SQLDATABA-694337.aspxrss@sagewire.orgMon, 16 Apr 2007 09:47:28 GMThttp://www.sagewire.org/mysql-database/Replication-binary-log-auto-removal-after-processi-693016.aspxCan I get the master (or slaves) to automatically remove the binary logs once they are processed by all slaves? It says in the mysql manual : If you are using replication, you shouldn't delete old binary log files until you are sure that no slave still needs to use them. For example, if your slaves never run more than three days behind, once a day you can execute mysqladmin flush-logs on the master and then remove any logs that are more than three days old. You can remove the files man...http://www.sagewire.org/mysql-database/Replication-binary-log-auto-removal-after-processi-693016.aspxrss@sagewire.orgFri, 13 Apr 2007 01:07:10 GMThttp://www.sagewire.org/mysql-database/Trouble-installing-the-MySQL-GUI-Tools-with-Red-Ha-691255.aspxHello Guys! I just installed MySQL Community Server 5.0 onto my computer, which is running Red Hat 8.0 and it works fine, but I was trying to install the MySQL GUI Tools (Query Browser, MySQL Administration and the Migration Toolkit) and I'm having trouble with it, I have decompressed the installer , I go to the installation directory (/usr/local/mysql/mysql-gui- tools-5.0) and type in ./mysql-query-browser to run the query browser, but it gives me this error message: ./mysql-q...http://www.sagewire.org/mysql-database/Trouble-installing-the-MySQL-GUI-Tools-with-Red-Ha-691255.aspxrss@sagewire.orgMon, 09 Apr 2007 20:29:10 GMThttp://www.sagewire.org/mysql-database/MySQL-table-suddenly-disappeared-and-func-table-wa-688075.aspxHi, everyone. I am not sure if I am writing in the correct group. But somehow it relates to MySQL, I hope someone can help me. I am working on a web site which is developed by PHP and MySQL, hosted by a hosting company. Last week, all tables in MySQL suddenly disappeared and a "func" table is created there. I never create that table in my database. I asked the Hosting company what happened. The staff claimed that most probably my computer was hacked and someone use the admin pas...http://www.sagewire.org/mysql-database/MySQL-table-suddenly-disappeared-and-func-table-wa-688075.aspxrss@sagewire.orgSat, 07 Apr 2007 12:11:11 GMThttp://www.sagewire.org/mysql-database/PHP-checking-for-no-record-690675.aspxI am trying to check for '$date' & '$mileage' but when I give them a value that isn't in the table $result = 2 & the 'if' statement fails to create the new record, or just print "create DMID" in this case. $result seems to always = 2. num_rows shows correct (0 or 1) & the DMID is printed if $date & $mileage are in the table. What am I doing wrong? ----------- $result = mysql_query("select DMID from DateMileage where date = '$date' and mil eage = '$mileage'"); printf("Rows = ".mysql_...http://www.sagewire.org/mysql-database/PHP-checking-for-no-record-690675.aspxrss@sagewire.orgSat, 07 Apr 2007 02:05:30 GMThttp://www.sagewire.org/mysql-database/Is-firewall-preventing-MySQL-access-338357.aspxI have recently features to a system by making use of some simple MySQL access routines. It works fine at most test locations, correctkly accessing a MySQL database on an internet server. However, at certain test sites, I cannot access the database. We're online, and I can access web files, for example. But when trying to say hello to that MySQL database, the program fails at the "mysql_real_connect" call. The message is "can not connect to MySQL server", with code "10060" and...http://www.sagewire.org/mysql-database/Is-firewall-preventing-MySQL-access-338357.aspxrss@sagewire.orgSat, 07 Apr 2007 01:35:03 GMThttp://www.sagewire.org/mysql-database/Multiplying-matches-complex-query-683927.aspxHi all, I need to think of a complex way of searching data in a table and also create a scoring system and display results considering their score. I need to keep some tokens and also need to compute the score with those values. The formula for computing the score might be different. (For example: Token1^4 + Token2 * 7 .....). I will explain further what those tokens mean and why do I need them. So it is useful l to know that score can be anything (useful for later query upgrades, adap...http://www.sagewire.org/mysql-database/Multiplying-matches-complex-query-683927.aspxrss@sagewire.orgTue, 03 Apr 2007 13:40:22 GMThttp://www.sagewire.org/mysql-database/clean-up-tables-after-deletes-687896.aspxI noticed that in phpMyAdmin there is a way to cleanup and compact tables that have had lots of deletes done to them. Can anyone tell me how to do that manually? I find phpMyAdmin to be a pain so I do not want to use it but I'd like to compact some tables that got bloated with testing and are now much smaller than before. The main reason I want to clean them up is that new records go into slots previously used and deleted instead of going at the end, where they naturally belong (chronolog...http://www.sagewire.org/mysql-database/clean-up-tables-after-deletes-687896.aspxrss@sagewire.orgSun, 01 Apr 2007 22:49:29 GMThttp://www.sagewire.org/mysql-database/Very-Slow-Select-Query-459432.aspxHello, I've a table with more than 1,000,000 rows. mysql> describe views_date; +----------+-------------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +----------+-------------+------+-----+---------+----------------+ | id | bigint(20) | NO | PRI | NULL | auto_increment | | id_count | bigint(20) | YES | | NULL | | | date | datetime | YES | | NULL | | | type...http://www.sagewire.org/mysql-database/Very-Slow-Select-Query-459432.aspxrss@sagewire.orgSat, 31 Mar 2007 01:39:27 GMThttp://www.sagewire.org/mysql-database/mysqlhotcopy-573841.aspxI tried using mysqlhotcopy to do backup copies of my databases, but it fails with error: "DBD::mysql::db do failed: Not unique table/alias: 'comments' at /usr/ bin/mysqlhotcopy line 466." Has anyone encountered this error? Any ideas on how to solve this? Thanks, Antonihttp://www.sagewire.org/mysql-database/mysqlhotcopy-573841.aspxrss@sagewire.orgThu, 29 Mar 2007 07:34:03 GMThttp://www.sagewire.org/mysql-database/mysql-loads-newline-from-flat-file-524163.aspxHi there MYSQL is loading a non printable character at the end of each row, clearly its a newline or ENTER character.. I have tried dos2unix.exe, a perl program that converts dos files to unix, etc. But I dont think I cant remove newline from the file otherwise how will mysql know what the record separator is ? here is my load command: LOAD DATA INFILE 'e:/ETL/john/mergedfile_CELL2.txt' INTO TABLE mergedfile_CELL1b FIELDS TERMINATED BY 0x1C IGNORE 1 LINES; How does one resolve this ...http://www.sagewire.org/mysql-database/mysql-loads-newline-from-flat-file-524163.aspxrss@sagewire.orgWed, 28 Mar 2007 21:04:59 GMThttp://www.sagewire.org/mysql-database/join-woes-391142.aspxI've a database with 3 tables, one for nominees, one for voters and one for votes. I used the following syntax SELECT `tblnominees`.`fldNominee`, Count(`tblvotes`.`fldVote`) AS `COUNT_OF_VOTES` FROM `tblnominees` Left Join `tblvotes` ON `tblvotes`.`fldVote` = `tblnominees`.`nomineeID` GROUP BY `tblnominees`.`fldNominee` ORDER BY `COUNT_OF_VOTES` DESC and this worked well to give a list of all candidates, whether they had votes or not (it returned '0' for those with no votes...http://www.sagewire.org/mysql-database/join-woes-391142.aspxrss@sagewire.orgWed, 28 Mar 2007 13:26:05 GMThttp://www.sagewire.org/mysql-database/mysqldump-blocks-httpd-server-390874.aspxHello, I'm trying to make a daily database backup. When executing "mysqldump - uxxx -pxxx database > /home/backup/ddbb.sql -q &" the httpd server gets blocked and my site is "offline" for 30 minutes. I also tried using mysqlhotcopy, but with no success since it fails with error: "DBD::mysql::db do failed: Not unique table/alias: 'comments' at /usr/ bin/mysqlhotcopy line 466." I'd like to make a daily MySQL backup, but without freezing my httpd server. Any ideas? Thanks, Antoni ...http://www.sagewire.org/mysql-database/mysqldump-blocks-httpd-server-390874.aspxrss@sagewire.orgMon, 26 Mar 2007 08:01:55 GMThttp://www.sagewire.org/mysql-database/double-entries-390932.aspxHi Folk I've a databse with a bunch of double entries in some fields. For example:field A: "that is the way to go that is the way to go " field A should be: "that is the way to go " Is there some sort of sql I can use to find these (and clean them up)? TIA [quote]Nicolaas [/quote]http://www.sagewire.org/mysql-database/double-entries-390932.aspxrss@sagewire.orgSun, 25 Mar 2007 09:11:12 GMThttp://www.sagewire.org/mysql-database/finding-duplicate-records-389340.aspxI'm trying to setup a way to find possible duplicate or near-duplicate records of contact people. I've a table of 50k records doing an inner join with itself, something like this: SELECT p1.fields, p2.fields FROM table AS p1 INNER JOIN table AS p2 ON p1.lastname = p2.lastname WHERE p1.id [code]<>[/code] p2.id AND (other criteria) The id and name and other criteria fields are indexed as well as they can be. It works fine as long as I add a LIMIT statement to keep it down to just 1...http://www.sagewire.org/mysql-database/finding-duplicate-records-389340.aspxrss@sagewire.orgMon, 19 Mar 2007 08:29:35 GMThttp://www.sagewire.org/mysql-database/MYSQL-performance-issue-385979.aspxHi, The following prg keeps cpu usage as 79% always .When I kill/stop the prg,then cpu comes down. main() { //code for mysql conn while(1) mysql_real_query (&mysqlcon, "SET CHARACTER SET 'utf8';", 25); } What might be the reason? Wil it be any config issues? Regards, sathishttp://www.sagewire.org/mysql-database/MYSQL-performance-issue-385979.aspxrss@sagewire.orgMon, 12 Mar 2007 23:05:57 GMThttp://www.sagewire.org/mysql-database/mysql-How-could-move-table-from-one-database-to-386589.aspxI've a *damaged* MyISAM stock_take_mst.frm in /var/lib/mysql/abc. And I'd like to move it to /var/lib/mysql/test and experiment with it. Is there a MySQL command to detach and attach a table? -- iTech Consulting Co., Ltd. Expert of ePOS solutions Website: http://www.itech.com.hk (IE only) Tel: (852)2325 3883 Fax: (852)2325 8288http://www.sagewire.org/mysql-database/mysql-How-could-move-table-from-one-database-to-386589.aspxrss@sagewire.orgFri, 09 Mar 2007 02:09:08 GMThttp://www.sagewire.org/mysql-database/merging-data-383887.aspxI've two identical databases on two different servers and I need to add the data in tables from one server to the tables in the other server. Is there a way to do that in mysql? thanks, Ralphhttp://www.sagewire.org/mysql-database/merging-data-383887.aspxrss@sagewire.orgTue, 27 Feb 2007 18:34:08 GMThttp://www.sagewire.org/mysql-database/MySQL-slow-in-windows-NT4-383295.aspxHello; I am running the Apache web server, MySQL v4, and PHP on an NT4 server. Apache runs great, but the auction software I am using (Web2035 Auction software written in PHP) is very, very slow. Sometimes it takes 20-30 seconds to bring up an auction page from the items table which has less than 200 records in it. Can anyone can give me some pointers on where to start looking? (I do not know if the bottleneck is with MySQL or PHP or what I might need to look at to enhance the...http://www.sagewire.org/mysql-database/MySQL-slow-in-windows-NT4-383295.aspxrss@sagewire.orgMon, 26 Feb 2007 03:03:16 GMThttp://www.sagewire.org/mysql-database/MySQL-Performance-382401.aspxOur database contains about 27,000 records only and it is very slow. Can someone please suggest any tips to increase the performance? We used InnoDB. Tkshttp://www.sagewire.org/mysql-database/MySQL-Performance-382401.aspxrss@sagewire.orgWed, 21 Feb 2007 17:47:28 GMT