creating databases in different folders
Hi all, I'm using MySQL 5.0 on Windows 2003. Problem background: We use the same server for different applications. All the applications share the same server as the database server. Each application uses their own database. In MSSQL we put each database in the corresponding application folder so that the application root folder contains everything (including the database). Now we're trying to do the same for MySQL as well, but I'm not sure how I can specify that a database should be created in a particular directory (and it's almost always not in C:\Program Files\MySQL Server). Can anyone advise? Thanks. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql?unsub=arch...@jab.org
RE: Left join query
A LEFT OUTER JOIN in that query in not necessary. An inner join should be used. -Original Message- From: Shiv [mailto:shiv...@gmail.com] Sent: Saturday, May 30, 2009 10:18 PM To: bharani kumar Cc: mysql Subject: Re: Left join query Hi, Along with tables, you should also provide details on how they are related. Assuming "Code" is unique in both tables and left joined on Airport table, you can do something like this SELECT A.Code, C.Code, A.SlNo, C.SlNo, A.Name, C.Location, A.status, C.status, C.type FROM Airport A LEFT OUTER JOIN Common C ON A.Code = C.Code WHERE A.status = 1 and C.status = 1 and C.type = 'airport' Cheers, Shiva On Fri, May 29, 2009 at 8:52 PM, bharani kumar < bharanikumariyer...@gmail.com> wrote: > Airport table > > SlNoName Code AuthLocation status > 1 ChennaiCHN Yes India 1 > 2. Hydarabed HYD Yes India 0 > 3 walkerWAK Yes uk1 > > > common table > > SlNoName CodeType Location > status > 1 ChennaiCHNAirport India > 1 > 2. guest Road GR Seaport India 1 > 3. Hyderabad HYDAirport > India 0 > 4. John gardenJG Seaport India 0 > 5 walkerWAKairportuk1 > > > Hi All > > Can u please tell the query for the above table , > > Display the record which satisfy below condtions , > > 1.Need to display airport name , Where airport status = 1 and common > table status = 1 and common table type = airport > > Output somthing like below > > AirportCode CommonCode AirportSlNo CommonSlNo AirportName > CommonLocation Status Type > > CHNCHN1 1 > Chennai india 1airport > > WAK WAK 35 > walker uk 1airport > > > Any idea , > > > > > Thnaks > > > > > > > > -- > Regards > B.S.Bharanikumar > http://php-mysql-jquery.blogspot.com/ > > -- > MySQL General Mailing List > For list archives: http://lists.mysql.com/mysql > To unsubscribe:http://lists.mysql.com/mysql?unsub=shiv...@gmail.com > > The information contained in this transmission may contain privileged and confidential information. It is intended only for the use of the person(s) named above. If you are not the intended recipient, you are hereby notified that any review, dissemination, distribution or duplication of this communication is strictly prohibited. If you are not the intended recipient, please contact the sender by reply email and destroy all copies of the original message. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql?unsub=arch...@jab.org
Effect of NULL on index performance specific to InnoDB
It's often said that NOT NULL column is preferable in terms of index performance. I was wondering exactly why and how this is so specifically to InnoDB. It would be great if someone can shed light on this matter in some detail. Kyong -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql?unsub=arch...@jab.org
Re: Best way to convert character set from "latin1 to utf8" for existing database?
Uma, On Mon, Jun 1, 2009 at 8:41 AM, Uma Bhat wrote: > Hi All, > > I have read many blogs suggesting some examples for this. > But suggestions from you guys who have ACTUALLY worked on such a scenario > would help me out the best. > > > Current Database has: > DEFAULT CHARACTER SET - latin1 > DEFAULT COLLATION : latin1_swedish_ci > > We need to convert this to > DEFAULT CHARACTER SET - utf8 > DEFAULT COLLATION : utf8_general_ci > > > Note that this has to be done on a database that has *existing data* in it . > > Hence just by doing a: > > ALTER DATABASE CHARSET=utf8; > > would result in unexpected behaviour of the data. Ryan Lowe blogged about this. http://www.mysqlperformanceblog.com/2009/03/17/converting-character-sets/ He wrote a tool for it (linked from post) http://www.pablowe.net/convert_charset And Schlomi Noach commented that openark also has a tool. http://code.openark.org/forge/openark-kit Cheers, Ewen > > Thanks! > Uma > -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql?unsub=arch...@jab.org
Re: Recover data without logs
Weitao, On Sun, May 31, 2009 at 10:13 AM, Weitao Liu wrote: > I had deleted some important data from my mysql server,who can tell how can > I recover my data,I do not open the bin log,is there some other method? If you are using InnoDB you may be able to recovery the data from the pages if you did something like "DELETE * FROM..." http://code.google.com/p/innodb-tools/ Cheers, Ewen > > thanks a lot ! > -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql?unsub=arch...@jab.org
Re: Recover data without logs
Still thanks,I will remember how to avoide this if the feature!
