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• Greatest not null column

  - by Álvaro G. Vicario

  I need to update a row with a formula based on the largest value of two DATETIME columns. I would normally do this: GREATEST(date_one, date_two) However, both columns are allowed to be NULL. I need the greatest date even when the other is NULL (of course, I expect NULL when both are NULL) and GREATEST() returns NULL when one of the columns is NULL. This seems to work: GREATEST(COALESCE(date_one, date_two), COALESCE(date_two, date_one)) But I wonder... am I missing a more straightforward method?

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• temp. download links (with codeigniter)

  - by Ayrton

  Hi everyone I was wondering how I could start generating temporarily download links based on files from a protected directory (e.g. /downloads/). These links need to be valid until someone used it 5 times or so or after a week or so, after that the link shouldn't be accessible anymore. Any help would be appreciated.

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• Variable table or column names.

  - by Frank Computer

  INFORMIX-SQL or any other SQL-based DB: Suppose I have an app where depending on the value of some columns, example: company.code char(3) {abc} company.brach char(2) {01} Can I construct table name "abc01" for inclusion in SELECT * FROM abc01; ? In other words, a variable table name.. same question applies for column names.

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• Dynamic Cocoon Block list

  - by Crischan

  Hi, I have a Cocoon 2.2 based application which uses blocks for different tasks and one block for shared pipeline fragments. All blocks are mounted within an Cocoon webapp. Now I would like to have an block which generates an overview of all other mounted blocks. I probably will have to use Java code - which is fine - but I am kinda lost where to start. Can anyone point me the right direction?

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• Does anyone know of a good .Net VoIP library.

  - by Vaelen

  I have been searching for ages now for a good .Net based VoIP library. After having tried conaito and SIP.Net I have still haven't found anything that truly fits my needs. Basically all of these are constructed using ActiveX. Unfortunately ActiveX and WPF don't play well together. And ClickOnce Deployment doesn't register Interop COM components. I need to find a good, pure .Net managed code implementation.

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• Mysql: Order Results by number of matching rows in Second Table.

  - by KyleT

  I'm not sure the best way to word this question so bear with me. Table A has following columns: id name description Table B has the following columns: id a_id(foreign key to Table A) ip_address date Basically Table B contains a row for each time a user views a row from Table A. My question is how do I sort Table A results, based on the number of matching rows in Table B. i.e SELECT * FROM TableA ORDER BY (SELECT COUNT(*) FROM TableB where TableB.a_id = TableA.id) Thank you!

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• mysql query results sorting

  - by user329094

  I am calling the results form a query to a list on my site based on if the item is "downtown_hosted". This works fine but I would now like to sort that list DESC, but can't seem to get the syntax correct. Below is what I have: $result_events = mysql_query("SELECT * FROM events WHERE downtown='downtown_hosted' ORDER BY date DESC LIMIT 5 ");

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• Does anyone know a good iPhone\iPad Application Development Company

  - by dejandark

  We’re a Virginia based company looking for an experienced and affordable iPhone application developer. If anyone has any recommendations, this is much appreciated thanks!

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• how to get around the command line length limit

  - by Crash893

  I've been working on a small and simple program that i drop files onto and based on certian rules they are moved to diffrent places. the program works fine unless i drop more than a few files on the program then it kicks back an error (that appears to be more windows than anything) that the start up command c:\myapp.exe \file \file \file is to long I realize i could set up a background proccess but i really would prefer that this program not run in the backround (where it would be idle 99.999999999% of the time) Can anyone think of any way around this limitation?

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• Prompting for user confirmation before upgrading previous version

  - by bizmark

  Using WiX, we would like to be able to uninstall a previous version if it is already installed. I am able to do this automatically based on the thread here. But how does one go about prompting the user if they actually want to uninstall the old version first, before running the RemoveExistingProducts action? ie. through a custom menu item that only launches if FindRelatedProducts returns 1, for example?

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• strstr and occurrences to match

  - by Mike

  I have several possible occurrences to test with strstr. if ((a = strstr(string, "FOO")) != NULL || (a = strstr(string, "BAR")) != NULL || (a = strstr(string, "FOO2")) != NULL ||(a = strstr(string, "BAR2")) != NULL || (a = strstr(string, "FOO3")) != NULL ||(a = strstr(string, "BAR3")) != NULL) // do something and then based on the occurrence found I need to do var = strlen("THE_ONE_MATCHED_ABOVE"); What would be a good way to do this without using lots of if statements?

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• What steps should I take for describing the architecture before starting Web project ?

  - by simple

  I am working on the project that is based on symfony (doctrine) with use of a facebook api. I really want to get the description of architecture of in terms of some diagrams, so What steps(in terms of types of diagrams) should I take first before coding ?

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• How to set checked property in vba (format or control toolbox)

  - by rach-90

  I'm trying to change the value of my checkbox to true based on a another cell's value if range("A1").value = "green" then Checkbox1.value= true end if How to I change the value property to true for multiple checkbox at the same time For some reason the code that i've tried doesn't do anything at all. P.S. I'm using format checkboxes

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• Operating System Development

  - by j-t-s

  Hi All I'm looking for any website(s) devoted and/or related to Operating System Development, and would love for you to kindly share any links you may have. I have searched myself, but keep winding up at the same old sites, and am wondering if there are others that just don't get noticed by the major search engines or something. I've put this as a community wiki, simply because I don't think it's very fair to judge an answer based on a single link. Thank you.

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• Esyndicat usage

  - by Noam

  Hello group, I am helping out a friend with setting up a web site based on eSyndicat. Is anyone here using this platform, can questions be asked here for it? If not, can you recommend a good place for that.

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• Increment an index that uses numbers and characters

  - by Martin

  I have a string based code that can be either two or three characters in length and I am looking for some help in creating a function that will increment it. Each 'digit' of the code has a value of 0 to 9 and A to Z. some examples: the first code in the sequence is 000 009 - next code is - 00A 00D - next code is - 00E AAZ - next code is - AB0 the last code is ZZZ. Hope this makes some sense.

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• asp.net mvc - Check what controller and method are called?

  - by ile

  How to check what controller and method are called? In html in body tag there is: <body id="somethingThatDependsOnControllerAndMethod">. id value will be assigned based on controller and it's method.

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• Creating a C# DLL and using it from unmanaged C++

  - by John

  I have a native (unmanaged) C++ application (using wxWidgets for what it's worth). I'm considering a separate tool application to be written in C# which would contain winform-based dialogs. putting some of those dialogs in a separate DLL would be useful as I'd hope to be able to use them from my C++ app. But I have no idea how much messing about is needed to accomplish this, is it particularly easy?

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• Randomly selecting a limited number of records with two conditions in MySQL

  - by andyashton

  I have a MySQL table with a column called "priority". The column can have two values: high or low. I want to select 8 records from the table at random, but I want 6 of them to be high priority, and 2 of them to be low priority. If possibly, I would like to do it in one SQL statement. Is there any way to do two LIMITS in one query based on this kind of criteria?

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• passing id to controller

  - by coure06

  I have 4-5 partial view files (.ascx) like abc.ascx, cde.ascx, fgh.ascx. I want to return different partial views based on the name of the view passed to url parameter like this /someservice/abc will go to action someservice and will return abc.ascx partial view. /someservice/cde will go to action someservice and will return cde.ascx partial view. How can achieve this?

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• jQuery filter() - filtering on multiple attributes

  - by Ankur

  I want to filter based on two attributes, the first is id and the second is called level i.e. id="someId" level="someLevel" Shouldn't this code do the trick ... it doesn't seem to work. $(".someClass").filter("#"+id, "[level='"+level+"']").someAction();

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• give preference to print array values in php

  - by Bharanikumar

  Hi , I have country table, i fetch all values and moved into array , these value i like to populate into combo/dropdown list , here i want to do some magic things, that is , for my site most of the users coming from uk,us,Australia,Romain and few, So i like to populate by my preference , is there any array will do this magic work, else is it possible mysql query , So final question is , Populate country name into combo based on my prefernce , Thanks

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• best way of oracle database partitions?

  - by murali

  hi, I have one table of 50k keywords and I am providing the auto-complete feature for these keywords based on count mechanism. But still getting the keywords takes time.. In what way would the database partitions have to be done for fast retrieving.... help me plz.....

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• How to use same view-state with different views in spring web flow

  - by Explorer

  Hey Guys, I am trying to find the way to use same view-state but with different views so that based on where it is being called, I can provide different view to the user. For instance, trying to achieve as follows: Please share your experience so that I can achieve this functionality easily.

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• I'm looking for a introduction to php(5 or 6)/mysql/javascript web development book

  - by prgrmnGuru

  Basically I want the books to be text book based, ie, author discusses the background,philosophy,syntax,semtantix for every language AND after every section there are questions what you learned so far and mini projects. Is there any books like this, I'm absolutely new to php/mysql/javascript and web development in general. Thanks in advance.

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