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  • MySQL :- select by month

    - by Pankaj
    how can i get record from table using month/year? I have a table like Project Name - varchar DueDate -datetime Status -boll DueDate is project due date, i want record corresponding to month/year,not full date, i mean record for specific month. How can i do this in mysql

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  • MySQL query String contains

    - by arik-so
    Hello. This may sound easy, but I've been trying - in vain, apparently - to figure out how I can make a query with MySQL that checks if the value (string $haystack ;) ) in a certain column contains certain data ( $needle ;) ), like this: mysql_query(" SELECT * FROM `table` WHERE `column`.contains('{$needle}') "); In PHP, the function is called substr($haystack, $needle), so maybe: WHERE substr(`column`, '{$needle}')=1 Thanks in advance!

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  • mysql db image convert to file

    - by ntan
    Hi i am writing a converter from Oracle to mysql In Oracle the images are stored in db. I want to read the content of the image and save to file system I suppose that i have to read the blob entry and using php file commands create the file (am i right) What about image type. Should i save as jpg (what if the store image is not jpg) Any suggestion are welcome

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  • mysql - speedup regex

    - by Uwe
    I have a table: +--------+------------------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +--------+------------------+------+-----+---------+----------------+ | idurl | int(11) | NO | PRI | NULL | auto_increment | | idsite | int(10) unsigned | NO | MUL | NULL | | | url | varchar(2048) | NO | | NULL | | +--------+------------------+------+-----+---------+----------------+ the select statement is: SELECT idurl, url FROM URL WHERE idsite = 34 AND url REGEXP '^https\\://www\\.domain\\.com/checkout/step_one\\.php.*' The query needs 5 seconds on a table with 1000000 rows. Can I achieve a speedup with indexes or something else?

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  • MySQL best usage in Tomcat?

    - by mabuzer
    Which one is better way of using MySQL in Tomcat : A) assign a DB connection for user as long as it's session is valid. [OR] B) open connection to DB, on every request come to server and when it's done close that. ?

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  • MySQL - query to return CSV in a field?

    - by StackOverflowNewbie
    Assume I have the following tables: TABLE: foo - foo_id (PK) TABLE: tag - tag_id (PK) - name TABLE: foo_tag - foo_tag_id (PK) - foo_id (FK) - tag_id (FK) How do I query this so that I get a result like this: ========================== | foo_id | tags | ========================== | 1 | foo, bar | | 2 | foo | | 3 | bar | -------------------------- Basically, I need all of foo's tags in one column, comma separated. Possible in MySQL?

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  • Upload Excel or CSV file to MySQL with PHP

    - by Tony
    I'm looking to allow users to upload an Excel or CSV file to MySQL for a contact management system. Need to be able to allow users to map their columns so that they are imported into the correct column in the table. Anyone know of a good site or tutorial on this?

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  • mysql composite unique on FK's

    - by m2o
    I want to implement the following constraints in mysql: create table TypeMapping( ... constraint unique(server_id,type_id), constraint foreign key(server_id) references Server(id), constraint foreign key(type_id) references Type(id) ); This throws a 'ERROR 1062 (23000): Duplicate entry '3-4' for key 'server_id'' when I issue an insert/update that would break the constraint. Is this type of constraint even possible? If so how? Thank you.

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  • Remote MySQL in AIR

    - by YourComputerHelpZ
    I use Aptana Studio 2.0 to create an Adobe AIR 2.0 webapplication. I have to contact my MySQL database from my server to be able to use my application. I tried, but it failed. Does AIR have these abilities anyways, and how? If not, what are the alternatives?

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  • SubSonic template with MySQL

    - by jstevenson86
    When I run the custom tool to create the cs files for SubSonic all the templates now inject a letter g to the top of the cs files. To get this to compile I need to remove the g from the ActiveRecord.cs, Struts.cs, Context.cs and StoredProcedures.cs. Anyone else run into this? I am using MySQL.

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  • Export unicode data from mysql

    - by Nayn
    Hi Folks, I have some data in one of my mysql table stored as utf8. The data is some japanese text. I need to export it to excel. Could you tell how to do it? Exporting by SELECT ... INTO OUTFILE returns some plain text file. I'm not sure how to read it back in excel so that japanese character would show properly Thanks Nayn

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  • Select nth percentile from MySQL

    - by mazin k.
    I have a simple table of data, and I'd like to select the row that's at about the 40th percentile from the query. I can do this right now by first querying to find the number of rows and then running another query that sorts and selects the nth row: select count(*) as `total` from mydata; select * from mydata order by `field` asc limit 37,1; Can I combine these two queries into a single query?

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  • Search MySQL Database

    - by McCrum
    Hey, I have put together an iPhone web app and i'm currently reading and displaying data from a MySQL database. I have added a search bar to this page and was wondering what the best way would be to search the content on the page. http://j.mp/c6lV8c

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  • mysql5.58 unstart server in mac os 10.6.5

    - by EdwardLau
    MySQL 5.5.8 uninstall MAC OS 10.6.5,restart computer is message “/Library/StartupItems/MySQLCOM” has not been started because it does not have the proper security settings. i set sudo /Applications/TextEdit.app/Contents/MacOS/TextEdit /usr/local/mysql/support-files/mysql.server Locate the configuration defining the basedir and set the following : basedir=/usr/local/mysql datadir=/usr/local/mysql/data bug i click the mysql preference start mysql server isn't start and i sudo chown -R root:wheel /Library/StartupItems/MySQLCOM and restart again ,not warning message but mysql server not start ,why?

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  • mysql - joining three tables with HAVING

    - by Qiao
    I have table: id name type where "type" is 1 or 2 I need to join this table with two other. Rows with "type = 1" should be joined with first table, and =2 with second. Something like SELECT * FROM tbl INNER JOIN tbl_1 ON tbl.name = tbl_1.name HAVING tbl.type = 1 INNER JOIN tbl_2 ON tbl.name = tbl_2.name HAVING tbl.type = 2 But it does not working. How it can be implemented?

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  • Non-blocking MySQL updates with java?

    - by justkevin
    For a multiplayer game I'm working on I'd like to record events to the mysql database without blocking the game update thread so that if the database is busy or a table is locked the game doesn't stop running while it waits for a write. What's the best way to accomplish this? I'm using c3p0 to manage the database connection pool. My best idea so far is to add query update strings to a synchronized list with an independent thread checking the list every 100ms and executing the queries it finds there.

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  • How can I view live MySQL queries?

    - by barfoon
    Hey all, I am just wondering if its possible to trace MySQL queries on my linux server as they happen? For example I'd love to set up some sort of listener, then request a web page and view all of the queries the engine executed, or just view all of the queries being run on a production server. Are there tools to do this? Thank you,

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  • mysql multiple insert - what happens on error?

    - by aviv
    What happens in mysql multiple records insert during an error. I have a table: id | value 2 | 100 UNIQUE(id) Now i try to execute the query: INSERT INTO table(id, value) VALUES (1,10),(2,20),(3,30) I will get a duplicate-key error for the (2,20) BUT... Will the (1,10) get into the database? Will the (3,30) get into the database?

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  • Mysql join two tables and add column values

    - by Mike
    My knowledge of mysql is not very in depth. If I have two tables that for example look like this: Table1 Date v1 v2 v3 05/01/2010 26 abc 45 05/02/2010 31 def 25 05/03/2010 50 ghi 46 Table2 Date v1 v2 v3 05/01/2010 42 jkl 15 05/02/2010 28 mno 14 05/03/2010 12 pqr 64 How can I join them in a query by their date and have the sum of table1.v1 and table2.v1 and also have the sum of table1.v3 and table2.v3. V2 should be ignored.

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  • Does MySQL short-circuit the ORDER BY clause?

    - by nickf
    Given this SQL: SELECT * FROM mytable ORDER BY mycolumn, RAND() Assuming that mycolumn happens to only contain unique values (and hence, contains enough information to perform the ORDER BY), does MySQL short-circuit the operation and skip evaluating the rest?

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