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• How to find files according RegEx in C#

  - by bao

  I need to get list of files on some drive with paths that matches specific pattern, for example FA\d\d\d\d.xml where \d is digit (0,1,2..9). So files can have names like FA5423.xml. What is the most efficient name to do this?

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• Are there multiline comment delimiters in SQL that are vendor agnostic?

  - by ojblass

  While editing, building up, or cherry picking from SQL statements I can find myself interacting with one of four popular database tools. I have been resorting to single line commenting for DB2 and Informix. I have created macros in vim to make this slightly more efficient but I was wondering if I am working too hard.

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• Cache front end for the JetS3t API

  - by Joshua

  Storage via JetS3t REST API seems to be very slow. Is there a caching front end for the JetS3t API for avoiding a network hit on the fetch calls [link text][1] [1]: http://jets3t.s3.amazonaws.com/api/org/jets3t/service/S3Service.html#getObject(org.jets3t.service.model.S3Bucket, java.lang.String, java.util.Calendar, java.util.Calendar, java.lang.String[], java.lang.String[], java.lang.Long, java.lang.Long)

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• Slurping a file into a string in Perl

  - by dreeves

  Yes, There's More Than One Way To Do It™, but what is the most canonical, most efficient, and most concise methods to read an entire file into a string? (The latter two are perhaps at odds.)

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• Display programming skills on resume in a efficiently and visually appealing way

  - by Soldier.moth

  In looking up how to display these I have seen: Comma Separated Bulleted List just skills skills with description Table It does not seem that these approaches can be space efficient without presenting a wall of text or aesthetically pleasing without taking up too make space. I was wondering if there are any approaches that reach a happy medium.

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• Mysql Replication

  - by ychian

  My current database design uses MyIsam mainly as the storage engine, I wonder if its possible to split some of the tables into MyIsam and some into Innodb in the same database. Reason of switching some of the tables to Innodb is because i need row-based locking which Innodb offers. I am not too sure whether this would have any effect on replication?

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• How can I display a manual efficiently in Sharepoint

  - by Matt Palfreman

  My organisiation uses Sharepoint for its 'intranet'. I have been given the task of creating a site for my department. One of the things I need on there is a procedure guide, which is basically a 150 page document, whereby each page is a separate procedure. Is there an efficient way within sharepoint that these procedures can be stored and searchable somehow, rather than dumping a 150 page document on there?

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• Any ideas on How to search a 2D array quickly?

  - by Tattat

  I jave a 2D array like this, just like a matrix: {{1, 2, 4, 5, 3, 6}, {8, 3, 4, 4, 5, 2}, {8, 3, 4, 2, 6, 2}, //code skips... ... } I want to get all the "4" position, instead of searching the array one by way, and return the position, how can I search it faster / more efficient? thz in advance.

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• Given a user's SID, how do I get their userPrincipalName?

  - by Max Schmeling

  I have a list of user's security identifiers and I need to get a list of userPrincipalName's... is there any way that I can get it without loading up the users DirectoryEntry and pulling in the userPrincipalName property? I need the most efficient method possible because this is done a lot

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• Big O, how do you calculate/approximate it?

  - by Sven

  Most people with a degree in CS will certainly know what Big O stands for. It helps us to measure how (in)efficient an algorithm really is and if you know in what category the problem you are trying to solve lays in you can figure out if it is still possible to squeeze out that little extra performance.* But I'm curious, how do you calculate or approximate the complexity of your algorithms? *: but as they say, don't overdo it, premature optimization is the root of all evil, and optimization without a justified cause should deserve that name as well.

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• Is it possible to use Google Gears inside of another Firefox extension?

  - by Dmitry Nedbaylo

  Basically, i want to implement Offline/Online XUL application with ability to upload data to server. Yes, i know there is Mozilla Storage API, but it looks like it is much more easier with Gears to have local database and to upload local changes to server using WorkerPool. Without Gears, i have no ideas how to upload local changes to remote server. Any thoughts, friends? Thanks in advance for any help.

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• Azure and Microsoft ASP.NET MVC

  - by CVertex

  I just got my azure invitation code...yay! Are there any official samples for windows azure + MS asp.net MVC? I still don't get the storage providers and services that come with Azure, it's a bit confusing. I don't think MS have done a very good of explaining it.

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• Applying different Cascade Style Sheets to the same html page

  - by Noona

  To apply a CSS to an existing html page I need to add a link that links to the css file, I am asked to include a link in the webpage that I am building that would link to the same html page but with a different css file, I am thinking I need to create a different css file, then create another .html page by copy the exact content from the first page and only change the link of the css file, but it doesn't seem so efficient and I am assuming there should be a standard method to do this. thanks

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• Correct way to model recursive relationship in Django

  - by Yuval A

  My application has two node types: a parent node which can hold recursive child nodes. Think of it like the post-comment system in SO, but comments can be recursive: parent_1 child_11 child_12 child_121 child_3 parent_2 child_21 child_211 child_2111 Important to note that the parent nodes have different attributes and behavior than the child nodes. What is the correct (and presumably most efficient) way of modeling this relationship in Django?

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• ClassCastExcpetion Linq to SQL

  - by BitFiddler

  I have a column definition in my generated Dbml file: <Column(Storage:="_Low", DbType:="Decimal(18,2)", UpdateCheck:=UpdateCheck.WhenChanged)> Public Property Low() As System.Nullable(Of Decimal) When I try to assign: With someObject .Low = 21.33D End With I get a ClassCastException when I call db_context.SubmitChanges(). Anyone have an idea why this is? Thanks

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• Finding a string inside an XmlDocument

  - by Gady

  Hi, I need to find an inner text of an element inside an XmlDocument and return it's Xpath. for example, searching for "ThisText" inside : <xml> <xml2>ThisText</xml2> </xml> should return the Xpath of xml2 what's the most efficient way of doing this in c#?

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• Google App Engine Memcache - Sliding expiration

  - by Keyur

  Is there support for sliding expiration in the GAE MemcacheService? I can do a crude implementation where following every get() I do a put(). This will effectively reset the expiration time but this obviously is not an efficient solution. Any pointers on how I can implement this more efficiently? Thanks, Keyur

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• What is the technical limitation for banks that makes them only give you 18 months of history?

  - by bobobobo

  For both my bank accounts I can only access 18 months of history. To access older account history, you have to pay a certain amount of money for each old statement. Why do banks do that? Shouldn't this practice go away as we get bigger hard disks and cheaper storage?

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• Drupal Module Development: How to Communicate between form_submit and page handler functions

  - by Aaron

  I am writing a module and I need to retrieve values set in a form_submit function from a page handler function. The reason is that I am rendering results of a form submit on the same page as the page handler. I have this working, but I am using global variables, which I don't like. I'd like to be able to use the $form_state['storage'] for this, but can't since I don't have access to the $form_state variable from the page handler. Any suggestions?

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• Recommend ASP.NET 3.5 SP1 Hosting Providers

  - by tyndall

  Would like to see a list of affordable ASP.NET 3.5 SP1 Hosting providers build up. Along with your review of the service, lacking features, special features, etc... Discount ASP.NET MochaHost At last update MochaHost does not offer SP1  they now offer SP1 CrystalTech Gearhost HostMySite please add more update: Anybody see a better deal for shared hosting ASP.NET than ASP.NETpro From GearHost? I would like to see more SQL storage, but I need keep the multiple domain capabilities. For about the same price.

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• What are the Ruby equivalent of Python itertools, esp. combinations/permutations/groupby?

  - by Amadeus

  Python's itertools module provides a lots of goodies with respect to processing an iterable/iterator by use of generators. For example, permutations(range(3)) --> 012 021 102 120 201 210 combinations('ABCD', 2) --> AB AC AD BC BD CD [list(g) for k, g in groupby('AAAABBBCCD')] --> AAAA BBB CC D What are the equivalent in Ruby? By equivalent, I mean fast and memory efficient (Python's itertools module is written in C).

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• In terms of loss of volume or corruption, is failure probability of an Amazon EBS volume 'x', indepe

  - by Tony Morgan

  In terms of loss of volume or corruption, is failure probability of an Amazon EBS* volume 'x', independent of the failure of another volume 'y'. Amazon states[1] AFR** of between 0.1%-0.5%, lets say 0.5%, 0.005. To restate the question is the AFR composed of two EBSs mirrored actually 0.005*0.005 = 0.000025? To be clear I'm not interested in high availability here, just very high durability. *EBS = elastic block storage (amazons persistant disks) **AFR = annual failure rate. [1] http://aws.amazon.com/ebs/

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• What's your experience with Flash drives?

  - by Jon Ericson

  EMC is marketing Solid State Flash Drives and my project is thinking about moving that direction in the future. Does anyone have any experience with replacing traditional disk storage with flash drives? Besides price, have you experienced any downsides to the technology?

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• How to properly read 16 byte unsigned integer with BinaryReader

  - by Brent

  I need to parse a binary stream in .NET to convert a 16 byte unsigned integer. I would like to use the BinaryReader.ReadUIntXX() functions but there isn't a BinaryReader.ReadUInt128() function available. I assume I will have to roll my own function using the ReadByte function and build an array but I don't know if this is the most efficient method? Thanks!

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• Simplest way to match array of strings to search in perl?

  - by Ben Dauphinee

  What I want to do is check an array of strings against my search string and get the corresponding key so I can store it. Is there a magical way of doing this with Perl, or am I doomed to using a loop? If so, what is the most efficient way to do this? I'm relatively new to Perl (I've only written 2 other scripts), so I don't know a lot of the magic yet, just that Perl is magic =D Reference Array: (1 = 'Canon', 2 = 'HP', 3 = 'Sony') Search String: Sony's Cyber-shot DSC-S600 End Result: 3

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