Re: mysqldump and access rights
ok, i see now the resultings files are owned by mysql. every file has the same user granted, but the wrong one since i can not chown user.group * as normal user. So far i see it is the same problem as with select into outfile Is there a fancy trick for mysqldump so i will create the corresponding select statements ? re, wh peng yao schrieb: you also can do this:#sudo -u mysql mysqldump command or #su - mysql -c mysqldump command 2009/7/24 walter harms wha...@bfs.de muhammad subair schrieb: On Thu, Jul 23, 2009 at 10:10 PM, walter harms wha...@bfs.de wrote: Hi list, i use mysqldump --tab to create database dumps. this will produce txt and sql files. the resulting sql files is owned by the user but the resulting datafile is owned by mysql.mysql is there any way to change that ? re. wh - Hi, you can use this in Linux *# chown user:user /path/to/file.txt* hi, yes i am aware of that but it would be more helpful for me if mysqldump uses the right ownership in the first place. re, wh -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql?unsub=xwei...@gmail.com -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql?unsub=arch...@jab.org
Intro to indexing?
Hey, all. I'm trying to get indexing -- like, when do you specify an index name during index creation, is index use implicit or explicit, and, honestly, how exactly does it work, anyway? I've been RTFM'ing, but haven't found anything that really laid it out in black and white; usually, they'd give an example or two, but were awfully sparse on the whys and wherefores. So, if anyone has something they could point me to -- electronic or dead tree -- I'd be deeply appreciative. Thanks! -Ken -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql?unsub=arch...@jab.org
SELECT query question
Hello. I have 4 tables: MainTable (Main_ID, Main_Name) Table1 (Source1_ID, Source1_Name, Main_ID) Table2 (Source2_ID, Source2_Name, Main_ID) Table3 (Source3_ID, Source3_Name, Main_ID) And a search box. A user can type any names from Source1_Name or Source2_Name or Source3_Name. I need to get Main_ID How to make it? Thanks, Inna
Re: SELECT query question
select * from MainTable MT left join Table1 T1 on MT.Main_ID = T1.MainID left join Table2 T2 on MT.Main_ID = T2.MainID left join Table3 T3 on MT.Main_ID = T3.MainID where T1.Source1_Name = anything or T2.Source2_Name = anything or T3.Source3_Name = anything Not tested. -- João Cândido de Souza Neto SIENS SOLUÇÕES EM GESTÃO DE NEGÓCIOS Fone: (0XX41) 3033-3636 - JS www.siens.com.br Rytsareva, Inna (I) irytsar...@dow.com escreveu na mensagem news:3c9bdf0e91897443ad3c8b34ca8bdca80218f...@usmdlmdowx028.dow.com... Hello. I have 4 tables: MainTable (Main_ID, Main_Name) Table1 (Source1_ID, Source1_Name, Main_ID) Table2 (Source2_ID, Source2_Name, Main_ID) Table3 (Source3_ID, Source3_Name, Main_ID) And a search box. A user can type any names from Source1_Name or Source2_Name or Source3_Name. I need to get Main_ID How to make it? Thanks, Inna -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql?unsub=arch...@jab.org
RE: SELECT query question
Should be more efficient to do something like: SELECT Main_ID FROM Table1 WHERE Source1_Name = 'name' UNION SELECT Main_ID FROM Table2 WHERE Source2_Name = 'name' UNION SELECT Main_ID FROM Table3 WHERE Source3_Name = 'name' -Original Message- From: João Cândido de Souza Neto [mailto:j...@consultorweb.cnt.br] Sent: Monday, July 27, 2009 1:09 PM To: mysql@lists.mysql.com Subject: Re: SELECT query question select * from MainTable MT left join Table1 T1 on MT.Main_ID = T1.MainID left join Table2 T2 on MT.Main_ID = T2.MainID left join Table3 T3 on MT.Main_ID = T3.MainID where T1.Source1_Name = anything or T2.Source2_Name = anything or T3.Source3_Name = anything Not tested. -- João Cândido de Souza Neto SIENS SOLUÇÕES EM GESTÃO DE NEGÓCIOS Fone: (0XX41) 3033-3636 - JS www.siens.com.br Rytsareva, Inna (I) irytsar...@dow.com escreveu na mensagem news:3c9bdf0e91897443ad3c8b34ca8bdca80218f...@usmdlmdowx028.dow.com... Hello. I have 4 tables: MainTable (Main_ID, Main_Name) Table1 (Source1_ID, Source1_Name, Main_ID) Table2 (Source2_ID, Source2_Name, Main_ID) Table3 (Source3_ID, Source3_Name, Main_ID) And a search box. A user can type any names from Source1_Name or Source2_Name or Source3_Name. I need to get Main_ID How to make it? Thanks, Inna -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql?unsub=gto...@ffn.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
Re: SELECT query question
There are many ways to get the same result. hehehehe Gavin Towey gto...@ffn.com escreveu na mensagem news:30b3df511cec5c4dae4d0d290504753413956dc...@aaa.pmgi.local... Should be more efficient to do something like: SELECT Main_ID FROM Table1 WHERE Source1_Name = 'name' UNION SELECT Main_ID FROM Table2 WHERE Source2_Name = 'name' UNION SELECT Main_ID FROM Table3 WHERE Source3_Name = 'name' -Original Message- From: João Cândido de Souza Neto [mailto:j...@consultorweb.cnt.br] Sent: Monday, July 27, 2009 1:09 PM To: mysql@lists.mysql.com Subject: Re: SELECT query question select * from MainTable MT left join Table1 T1 on MT.Main_ID = T1.MainID left join Table2 T2 on MT.Main_ID = T2.MainID left join Table3 T3 on MT.Main_ID = T3.MainID where T1.Source1_Name = anything or T2.Source2_Name = anything or T3.Source3_Name = anything Not tested. Rytsareva, Inna (I) irytsar...@dow.com escreveu na mensagem news:3c9bdf0e91897443ad3c8b34ca8bdca80218f...@usmdlmdowx028.dow.com... Hello. I have 4 tables: MainTable (Main_ID, Main_Name) Table1 (Source1_ID, Source1_Name, Main_ID) Table2 (Source2_ID, Source2_Name, Main_ID) Table3 (Source3_ID, Source3_Name, Main_ID) And a search box. A user can type any names from Source1_Name or Source2_Name or Source3_Name. I need to get Main_ID How to make it? Thanks, Inna -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql?unsub=gto...@ffn.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
Re: Intro to indexing?
On Mon, Jul 27, 2009 at 9:25 PM, Ken D'Ambrosio k...@jots.org wrote: Hey, all. I'm trying to get indexing -- like, when do you specify an index name during index creation, is index use implicit or explicit, and, honestly, how exactly does it work, anyway? I've been RTFM'ing, but haven't found anything that really laid it out in black and white; usually, they'd give an example or two, but were awfully sparse on the whys and wherefores. So, if anyone has something they could point me to -- electronic or dead tree -- I'd be deeply appreciative. Thanks! Indexes can be on a single column or can span multiple columns (just like keys). An index will be used when running a query, if the search is being performed on the following: - A single column that has a single-column index for example, if we index departments on departmentID and perform a query like SELECT...WHERE departmentID=n. - A set of columns that forms a multicolumn index for example, if we have created an index on the employee.assignment table on (clientID, employeeID, workdate) and we perform a query like SELECT...WHERE clientID=x AND employeeID=y AND workdate=z. - A column or set of columns that forms a subset of a multicolumn index, as long as there is a leftmost prefix of the index columns for example, with the assignment table as before, with an index on (clientID, employeeID, workdate), indexes would be used for these types of queries: Source: MySQL Tutorial - SAMS Publishing -- Muhammad Subair
