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• How to achieve multiple grids like the SQL server Results pane

  - by Skun

  Hi guys ! I'm having problems with my project once again :( The front end is C# I need to support multiline querying like MS SQL server and when these queries are executed, naturally there are going to be multiple result sets. Getting the datatables respective to the results is not a problem, but how do i make it appear like its done in MS SQL server. One result set below the other and with a scroll bar? Should i bind it to a datagrid? If so how can i bind multiple tables to a datagrid ? and will it generate the scrollbars and the columns automatically? If i am not clear, please let me know and i'll try to be more clearer. ps: If anyone knows how this can be done with the XtraGridControl in devexpress that would be awesome ! :D

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• I am not able to create foreign key in mysql Error 150. Please help

  - by Shantanu Gupta

  i am trying to create a foreign key in my table. But when i executes my query it shows me error 150 Error Code : 1005 Can't create table '.\vts#sql-6ec_1.frm' (errno: 150) (0 ms taken) My Queries are Query to create a foreign Key alter table `vts`.`tblguardian` add constraint `FK_tblguardian` FOREIGN KEY (`GuardianPickPointId`) REFERENCES `tblpickpoint` (`PickPointId`) Primary Key table CREATE TABLE `tblpickpoint` ( `PickPointId` int(4) NOT NULL auto_increment, `PickPointName` varchar(500) default NULL, `PickPointLabel` varchar(500) default NULL, `PickPointLatLong` varchar(100) NOT NULL, PRIMARY KEY (`PickPointId`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 CHECKSUM=1 DELAY_KEY_WRITE=1 ROW_FORMAT=DYNAMIC Foreign Key Table CREATE TABLE `tblguardian` ( `GuardianId` int(4) NOT NULL auto_increment, `GuardianName` varchar(500) default NULL, `GuardianAddress` varchar(500) default NULL, `GuardianMobilePrimary` varchar(15) NOT NULL, `GuardianMobileSecondary` varchar(15) default NULL, `GuardianPickPointId` varchar(100) default NULL, PRIMARY KEY (`GuardianId`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1

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• Query a range of date

  - by juniorSE

  Hello Guys, Im trying to query a sort of from - to date. e.g. 20-01-2010 to 20-02-2010. this should include the mentioned dates. i've tried the following queries but none works. select * from [tableName] where date = '20-01-2010' AND date <= '20-02-2010' the date where date is equal to 20-02-2010 does not show. i don't know why. select * from [tableName] where date between '20-01-2010' AND '20-02-2010' the mentioned dates is not included in the results. i want it to be included in the results. please help. thanks in advance! :)

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• Complicated idea - how to create car racing for my RPG game's players

  - by Donator

  So, I want to create car racing for my RPG game's players. Player can create race and choose how many participants can participate in race. After race is being created, other people can join it. When the maximum participants are collected, race begins. My idea, when the last participant joins, then instantly choose the winner (who's car is the best, that person wins), but how can I do it? If I choose to pick the winner after the last participant joins, then I have to put many queries in one page (select data from table, then delete the race, then select players' cars' statistics and pick the winner and then again, using mysql, send message to everyone). But this idea is really not optimal and it will lag cruelly for that last person. Maybe you have any ideas how I can avoid lag and make it more optimal. Thank you very much.

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• Exclude category from custom taxonomy output

  - by Nordin

  Hello, I'm using the query below to output all links from a custom taxonomy. It outputs all posts that are tagged 'http' from the taxonomy 'words'. I would like to exclude some general categories from the output. So, fe. it only outputs links in the media and news categories. What would be the best way to achieve this. $wp_query->request = " SELECT DISTINCT * FROM $wpdb->posts LEFT JOIN $wpdb->term_relationships ON($wpdb->posts.ID = $wpdb->term_relationships.object_id) LEFT JOIN $wpdb->term_taxonomy ON($wpdb->term_relationships.term_taxonomy_id = $wpdb->term_taxonomy.term_taxonomy_id) LEFT JOIN $wpdb->terms ON($wpdb->term_taxonomy.term_id = $wpdb->terms.term_id) WHERE $wpdb->posts.post_type = 'post' AND $wpdb->posts.post_status = 'publish' AND $wpdb->term_taxonomy.taxonomy = 'words' AND $wpdb->terms.slug = 'http' ORDER BY $wpdb->posts.post_date DESC LIMIT $ppp OFFSET $offset"; $pagelinkposts = $wpdb->get_results($wp_query->request, OBJECT);

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• SNMP from the browser

  - by moogs

  There"s this idea of having a web app search for devices in the network (with elevated user permissions, of course). Checking the silverlight and flash APIs, there does not seem to be a way to do SNMP ( the UDP APIs are limited to multicasting media ). Anyone know a clever workaround? In windows, a small XBAP utility can do the SNMP stuff, but that leaves out the Mac OS X platform. Thanks for any ideas. ( I do have a SO account but I"m in a not so trustworthy public PC right now so I didn"t log in. )

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• Django admin interface upload failing on request data read error

  - by Jake

  Hi All, This is an updated version of an old question I asked. I've now done a lot more testing, plus the old question got hijacked. I'm getting a request data read error when trying to upload files to the Django admin interface. Files under about 150k work, but bigger files always fail and almost always at around 192k (that's 3 chunks) completed, sometimes at around 160k. The Exception I get is below. File "/usr/lib/python2.4/site-packages/django/http/multipartparser.py", line 405, in read return self._file.read(num_bytes) IOError: request data read error I've tried Chrome and Firefox on Windows and Firefox on Mac - Same results. I can upload to other sites so I don't think it's my connection. I'm running python 2.4, django 1.1, mod_wsgi, on CentOS (a media temple DV server) Locally it's fine (Django development server) Everything I've found on this issue says it's a mod_python issue and that changing to mod_wsgi will fix it, but I am running mod_wsgi. Can anyone help?

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• Anyone have any issues with using PLINQO and ASP.NET MVC 2.0?

  - by Chad

  I'm asking because I'm working on an ASP.NET MVC 1.0 site, thinking of upgrading to ASP.NET MVC 2.0. Then I read that PLINQO 5.0 was released (I had never heard of PLINQO before) and have been impressed with what PLINQO appears to be capable of. 1) Is PLINQO capable of building out an ASP.NET MVC 2.0 UI project when it's run? 2) Have you had any bad experiences using PLINQO (particularly in an ASP.NET MVC app)? Let me make sure I have the scenario right in my mind: Using PLINQO (assuming it supports ASP.NET MVC 2.0), I should be able to point it to my DB and it will create 3 projects: data, test, and mvc 2.0 UI? The data would contain LINQ to SQL queries, with the PLINQO extensions added in and the other projects setup to use the data project by default?

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• MySQL UNION query from one table + ORDER BY

  - by ilnur777

  I have one table with two queries and I need to sort it with descending type using ORDER BY. Here is my MySQL query that does not work properly: (SELECT `text` FROM `comments` WHERE user_fr='".$user."' && archive='1' ORDER BY `is_new_fr` DESC) UNION (SELECT `text` FROM `message` WHERE user_to='".$user."' && archive='1' ORDER BY `is_new_to` DESC) Description! is_new_fr and is_new_to counts total new messages. Here is my table contant: user_fr | user_to | archive | is_new_fr | is_new_to| text name1 | name2 | 1 | 2 | 0 | testing... name2 | name1 | 1 | 0 | 5 | testing ... I want to make an order that 1st will display note that has more messages to few, or by another words using DESCending type. This is the display on the page I want to do: Open dialog with name2. Messages (5) Open dialog with name1. Messages (2) Thank you!

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• SPARQL UNION - Result set incomplete

  - by jplevac

  I have two queries: query 1: SELECT DISTINCT ?o COUNT(?o) WHERE { ?s1 ?somep1 <predicate_one-uri>. ?s1 ?p ?o} query 2: SELECT DISTINCT ?o COUNT(?o) WHERE {?s2 ?somep2 <predicate_two-uri>.?s2 ?p ?o.} Each query gives me a different result set (as expected). I need to make a union of these two sets, from what I understand the query below should give me the set I want: SELECT DISTINCT ?o COUNT(?o) WHERE { { ?s1 ?somep1 <predicate_one-uri>.?s1 ?p1 ?o} UNION {?s2 ?somep2 <predicate_two-uri>.?s2 ?p2 ?o.} } The problem is that some results from query 1 are not in the union set and vice-versa for query 2. The union is not working properly as it does not incorporate all results of query 1 and query 2. Please advise on the proper structure of the sparql query for achieving the desired result set. Thanks in advance! JP Levac

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• Manipulate Page Theme Programatically

  - by Aren B

  I've got the following Setup in my Theme: \App_Themes\Default\StyleSheet.css \App_Themes\Default\PrintStyleSheet.css The PrintStyleSheet.css file has a set of printing css rules set in them wrapped in an @Media Print { } block. I need a way to programmatically remove the PrintStyleSheet.css from the list of css files for ASP.NET to inject based on some flags. (Some instances we want to print the site verbatim without custom formatting). I know i could build a seperate theme without the PrintStyleSheet.css in it and switch the theme programmatically, however this would introduce duplication of my master stylesheet which is not acceptable. Any ideas?

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• Small help in alert box by moo tools

  - by piemesons

  <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/mootools/1.2.2/mootools-yui-compressed.js"></script> <script type="text/javascript" src="sexyalertbox.v1.2.moo.js"></script> <link rel="stylesheet" type="text/css" media="all" href="sexyalertbox.css"/> <body> <p><a href="#" onclick="Sexy.alert('<h1>hello</h1><p>Please enter a valid email address</p>');return false;">Click here</a></p> </body> </html> When we click on click here then a alert box will appear. I want to have that alert box in javascript ie alert("Same sexy alert box type alert box"); // hwo to do this??

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• Building a subquery with ARel in Rails3

  - by Christopher

  I am trying to build this query in ARel: SELECT FLOOR(AVG(num)) FROM ( SELECT COUNT(attendees.id) AS num, meetings.club_id FROM `meetings` INNER JOIN `attendees` ON `attendees`.`meeting_id` = `meetings`.`id` WHERE (`meetings`.club_id = 1) GROUP BY meetings.id) tmp GROUP BY tmp.club_id It returns the average number of attendees per meeting, per club. (a club has many meetings and a meeting has many attendees) So far I have (declared in class Club < ActiveRecord::Base): num_attendees = meetings.select("COUNT(attendees.id) AS num").joins(:attendees).group('meetings.id') Arel::Table.new('tmp', self.class.arel_engine).from(num_attendees).project('FLOOR(AVG(num))').group('tmp.club_id').to_sql but, I am getting the error: undefined method `visit_ActiveRecord_Relation' for #<Arel::Visitors::MySQL:0x9b42180> The documentation for generating non trivial ARel queries is a bit hard to come by. I have been using http://rdoc.info/github/rails/arel/master/frames Am I approaching this incorrectly? Or am I a few methods away from a solution?

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• Rails flash hash violation of MVC?

  - by user94154

  I know Rails' flash hash is nothing new, but I keep running into the same problem with it. Controllers should be for business logic and db queries, not formatting strings for display to the user. But the flash hash is always set in the controller. This means that I need to hack and work around Rails to use Helpers that I made to format strings for the flash hash. Is this just a pragmatic compromise to MVC or am I missing something here? How do you deal with this problem? Or do you not even see it as one?

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• How to attach multiple files to a Wordpress post?

  - by erik.brannstrom

  I'm currently working on a project where we are using Wordpress 3.0 RC. The idea is to create custom post types with meta boxes to make the system easier to use for the client. Some of these posts need to have multiple files attached to them, and by attached I do not mean inserted to post but rather we'd like to keep them separate from the post body (in fact, a given post type might not even have text, only files). I'm wondering if there is a standard approach for allowing multiple files to be attached to a Wordpress post? I've managed to add a meta box that allows one file from the media library to be selected, but I have no idea how to extend this to allow an arbitrary number of files. Hope someone can help!

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• In-memory Database in Excel

  - by user329174

  Hello, I am looking for a way to import a datatable from Access into an Excel variable and then run queries through this variable to speed up the process. I am trying to migrate from C# .NET where I read a data table from an access database into memory and then used LINQ to query this dataset. It is MUCH faster than how I have it currently coded in VBA where I must make lots of calls to the actual database, which is slow. I have seen the QueryTable mentioned, but it appears that this requires pasting the data into the excel sheet. I would like to keep everything in memory and minimize the interaction between the Excel Sheet and the VBA code as much as possible. I wish we didn't need to use Excel+VBA to do this, but we're kind of stuck with that for now. Thanks for the help!

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• Using amazon s3 with cloudfront as a CDN

  - by weezybizzle

  I would like to serve user uploaded content (pictures, videos, and other files) from a CDN. using Amazon S3 with cloudfront seems like a reasonable way to go. My only question is about the speed of the file system. My plan was to host user media with the following uri. cdn.mycompany.com/u/u/i/d/uuid.jpg. I don't haven any prior experience with S3 or CDN's and I was just wondering if this strategy would scale well to handle a large amount of user uploaded content. And if there might be another conventional way to accomplish this.

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• subscript for a join (\bowtie) operation in LyX/LaTeX

  - by Amir Rachum

  I'm using LyX to write some Relational Algebra queries. I'm using the \bowtie symbol for the join operation but when I try to put a text in subscript directly under the symbol, I get the following error: ...a_{\t{pId}}\t{person}\right)\bowtie\limits {\t{pId}{1}=\t{pId}_{2}... I'm ignoring this misplaced \limits or \nolimits command. Anyone knows how to do what I want? Preferably in LyX, but ERT code snippets will also be appreciated. Thanks! Edit: \t is a macro for \text.

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• Lexing partial SQL in C#

  - by Chris T

  I'd need to parse partial SQL queries (it's for a SQL injection auditing tool). For example '1' AND 1=1-- Should break down into tokens like [0] => [SQL_STRING, '1'] [1] => [SQL_AND] [2] => [SQL_INT, 1] [3] => [SQL_AND] [4] => [SQL_INT, 1] [5] => [SQL_COMMENT] [6] => [SQL_QUERY_END] Are their any at least lexers for SQL that I base mine off of or any good tools like bison for C# (though I'd rather not write my own grammar as I need to support most if not all the grammar of MySQL 5)

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• SQL Table Setup Advice

  - by Ozzy

  Hi all. Basically I have an xml feed from an offsite server. The xml feed has one parameter ?value=n now N can only be between 1 and 30 What ever value i pick, there will always be 4000 rows returned from the XML file. My script will call this xml file 30 times for each value once a day. So thats 120000 rows. I will be doing quite complicated queries on these rows. But the main thing is I will always filter by value first so SELECT * WHERE value = 'N' etc. That will ALWAYS be used. Now is it better to have one table where all 120k rows are stored? or 30 tables were 4k rows are stored? EDIT: the SQL database in question will be MySQL

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• msvsmon is locking up my pdbs

  - by Sam Saffron

  During developement of my media center plugin (which has a few custom build steps to gac stuff and such) msvsmon has a rather annoying behaviour. First compilation usually goes well, but subsequent compilations complain about myplugin.pdb being locked Error 1 Unexpected error creating debug information file 'C:\Users\sam\source\myfile.PDB' -- 'C:\Users\sam\source\obj\Debug\myfile.pdb: The process cannot access the file because it is being used by another process. If I exit VS and nuke the object directory, I am able to compile again. Also, if I kill off msvsmon.exe I am able to compile again (but can not debug) Has anyone seen this error? Are there any workarounds? I already disabled live semantic errors, just in case.

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• Custom Classes Passed from Service to a UI threads via AIDL

  - by Honza Pokorny

  I have a service that regularly queries a web server for new messages. The service stores the new messages in an arrayList. These messages are implemented using a custom class, storing all kinds of metadata (strings and longs). An activity then connects to this service to retrieve those messages and display them to the user. I have an .aidl file that describes the interface that the service exposes. package com.example.package; interface MyInterface { List<Message> getMessages(); } The Message class extends the Parcelable class which should allow for the IPC transfer. The problem is this: Eclipse gives me an error saying that the type of List<Message> is unknown. Any imports are marked as invalid. Ideas? Thanks

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• Looking for an elegant way to store one-to-many relationship in coredata when order is important

  - by Eric Schweichler

  I've been trying to come up with a way to solve my problem, but every solution I can think of is messy and makes me want to retch. I have a one-to-many relationship, consisting of a Team object that can have many Member objects. When I built my data model using Xcode, I was given the default NSSet in which to store the member objects, Unfortunately Sets are not ordered and I need to preserve the order of the Member objects and I need to know if there are empty spaces between Members. I thought of Using an NSArray in place of the NSSet and creating a dummy Member object in my data store that I could use to mark vacant a spot between to Member objects, but that solution really feels like too much of a hack to me. Since I'll always have to filter out this dummy Member from any queries. An NSDictionary would be perfect as I could store the Member object references and their positions as Object-Key pairs, (taking care of both order and vacancies) but apparently CoreData does not support NSDictionary. Has anyone had a similar need, and devised a simple solution?

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• CPU and Data alignment

  - by MS

  Dear All, Pardon me if you feel this has been answered numerous times, but I need answers to the following queries! Why data has to be aligned (on 4 byte/ 8 byte/ 2 byte boundaries)? Here my doubt is when the CPU has address lines Ax Ax-1 Ax-2 ... A2 A1 A0 then it is quite possible to address the memory locations sequentially. So why there is the need to align the data at specific boundaries? How to find the alignment requirements when I am compiling my code and generating the executatble? If for e.g the data alignment is 4 byte boundary, does that mean each consecutive byte is located at modulo 4 offsets? My doubt is if data is 4 byte aligned does that mean that if a byte is at 1004 then the next byte is at 1008 (or at 1005)? Your thoughts are much welcome. Thanks in advance! /MS

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• [PHP] building html tables from query data... faster?

  - by Andrew Heath

  With my limited experience/knowledge I am using the following structure to generate HTML tables on the fly from MySQL queries: $c = 0; $t = count($results); $table = '<table>'; while ($c < $t) { $table .= "<tr><td>$results[0]</td><td>$results[1]</td> (etc etc) </tr>"; ++$c; } $table .= '</table>'; this works, obviously. But for tables with 300+ rows there is a noticeable delay in pageload while the script builds the table. Currently the maximum results list is only about 1,100 rows, and the wait isn't long, but there's clearly a wait. Are there other methods for outputting an HTML table that are faster than my WHILE loop? (PHP only please...)

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