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• How to Create Effective Error Reports

  - by John Paul Cook

  This post demonstrates some generic problem reporting steps that I encourage all users, whether developers or nontechnical end users, to follow. SQL Server has a feature that can help. So does Windows in some cases. More on those in Step 3. Step 1: Is the problem caused by a particular action undertaken on a gui? If so, you should get a screen capture. But if it is caused by executing some T-SQL code in a query window, just copy/paste the offending code as text. There are several ways to get a screen...(read more)

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• Checking whether the user input is a str in Python [migrated]

  - by Sahil Babbar

  I checked various questions on Stack Overflow but one thing every logic lacks. Let me demonstrate using Python: while True: user_input = raw_input() if type(user_input) == str: print 'ERROR' else: print 'BINGO' Also, we cannot use input() in place of raw_input() as it gives the error:Traceback (most recent call last): File ".\test.py", line 3, in <module> user_input = int(input()) File "<string>", line 1, in <module> NameError: name 'asdf' is not defined The problem here is that raw_input converts the user input into string so it always prints 'ERROR' and if I change the second line to user_input = int(raw_input) then, it gives an error: Traceback (most recent call last): File ".\test.py", line 3, in <module> user_input = int(raw_input()) ValueError: invalid literal for int() with base 10: 'asdf' I tried this with try and except but it shall work fine to check integer but not a string. I feel that this question may be marked as a duplicate but I think that this query is important, if logically taken.

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• transparent home directory encryption

  - by user86458

  #1 I'm very new to the ubuntu home directory encryption or rather ecryptfs folder encryption. I read about the same within Dustin's blog & tried implementing it. Problem or query is my home directory is encrypted & has a www folder ... now when I reboot the system the decryption doesnt happen at startup/boot & apache is not able to find the files rather the folder www since it is not mounted ... in order to mount it I have to login .... is there a way by which an encrypted home / private folder can be mounted at boot without human intervention ? #2 I have installed ubuntu server 11.10 & had selected "encrypt home directory" when installing the same. With ubuntu things are working transparently even after reboot & without logging in. Kindly can anyone pls explain or guide on the same ?

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• Basic use of Business Rules

  - by shinynewbike

  I have a query on whether the following requirements would need to be designed via Business Rules - this is for a JEE based application where currently this is coded as part of the Business logic. System will create a tax account for every city, county and district combination that imposes tax for only certain cities, counties or districts depending on the taxpayer's business. When the user establishes an account which exists in all subdivisions (i.e. at city or county level), the application must use his tax code and automatically populate all the locations without requiring the user to data enter every location. I assume this would mean a data lookup table from a master table (of tax accounts) and fetch and display all locations. Is there some way in which a Rules Engine can be used to manage these combinations?

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• Store VOD wmi data in a database directly or use CQRS?

  - by JD01

  I need to collect Video on demand bandwidth usage every few minutes (or maybe ever few seconds) and store this in a database so users can produce graphs on bandwidth usage over a period of time (few hours, days, weeks or even possibly months). So the sort of data that will be stored will be the number of users watching videos, current server bandwidth (Mb/s), multicast bit rate etc. I am wondering whether using CQRS would be a good approach with Event sourcing as I can then rebuild my objects to create different projections (I.e. different graphs/reports etc) but then again it seems like I am introducing complexity which might not be needed. Or would it be best to just put the data directly in a database (currently using PostGres) directly and query off that? Having thought about it, my table is a form of audit log anyway, so I don't think I need event sourcing at all. Any thoughts?

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• When to reply 400 Bad Request

  - by KajMagnus

  According to www.w3.org, a Web server should reply with status code 400 Bad Request if: "The request could not be understood by the server due to malformed syntax. The client SHOULD NOT repeat the request without modifications" Does that mean only request that violates some HTTP spec? Or does it include a request that my particular Web app thinks is broken? When would you reply 400? For example, if my Web app expects a query string to always include a "function=..." parameter, would you reply code 400 Bad Request or 403 Forbidden? (403 means that "The server understood the request, but is refusing to fulfill it.")

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• OSB, Service Callouts and OQL - Part 1

  - by Sabha

  Oracle Fusion Middleware customers use Oracle Service Bus (OSB) for virtualizing Service endpoints and implementing stateless service orchestrations. Behind the performance and speed of OSB, there are a couple of key design implementations that can affect application performance and behavior under heavy load. One of the heavily used feature in OSB is the Service Callout pipeline action for message enrichment and invoking multiple services as part of one single orchestration. Overuse of this feature, without understanding its internal implementation, can lead to serious problems. This post will delve into OSB internals, the problem associated with usage of Service Callout under high loads, diagnosing it via thread dump and heap dump analysis using tools like ThreadLogic and OQL (Object Query Language) and resolving it. The first section in the series will mainly cover the threading model used internally by OSB for implementing Route Vs. Service Callouts. Please refer to the blog post for more details. 

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• How to Create Reports in Microsoft Access 2010

  Reports are great ways to present information to parties who want to see relevant data in an organized format that can be easily analyzed. Microsoft Access 2010 allows you to create reports that not only make data more digestible, but also more presentable thanks to their professional look. A report's function comes from its ability to pull in or extract information from single or multiple tables or queries. It could be considered similar to a query in this sense, but what sets it apart is the way in which it presents the information in an easy to use format that you can define to fit your n...

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• Does connection pooling work fine to execute 60 DB queries to load a page?

  - by willem

  We use Linq2Sql in an ASP.NET application. Unfortunately the eager-loading in Linq2Sql isn't as powerful as in Entity Framework, so a lot of the data has to be lazy loaded as needed. Taking connection pooling into account, is it OK for a web page to execute 60 queries to load a page? Executing a single big query probably won't be much better, as those 60 queries will all those connection pooled connections and not open a new connection each time (which I realize is slow). Any thoughts?

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• What does Enable/Disable mean in Bing's URL Normalization feature?

  - by DisgruntledGoat

  I'm in Bing Webmaster Tools, under Index URL Normalization. Many parameters are listed in the table with 3 other columns: Status, Source, Date. The "Source" column says "Webmaster" where I have added parameters, and "Bing" where I assume the parameter has been auto-detected. "Date" is probably the last date it detected the parameter. I've tried searching the help files but I can't find what the Status column means. The top of the page says: This feature allows you to specify query parameters for Bing’s crawler to ignore. But it's not clear whether "Enable" or "Disable" is related to this, and if so what happens in each case. Does anyone know?

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• Recommended 2D Game Engine for prototyping

  - by Thomas Dufour

  What high-level game engine would you recommend to develop a 2D game prototype on windows? (or mac/linux if you wish) The kind of things I mean by "high-level" includes (but is definitely not limited to): not having to manage low-level stuff like screen buffers, graphics contexts having an API to draw geometric shapes well, I was going to omit it but I guess being based on an actual "high-level" language is a plus (automatic resource management and the existence a reasonable set of data structures in the standard library come to mind). It seems to me that Flash is the proverbial elephant in the room for this query but I'd very much like to see different answers based on all kinds of languages or SDKs.

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• Configuring trace file size and number in WebCenter Content 11g

  - by Kyle Hatlestad

  Lately I've been doing a lot of debugging using the System Output tracing in WebCenter Content 11g.  This is built-in tracing in the content server which provides a great level of detail on what's happening under the hood.  You can access the settings as well as a view of the tracing by going to Administration -> System Audit Information.  From here, you can select the tracing sections to include.  Some of my personal favorites are searchquery,  systemdatabase, userstorage, and indexer.  Usually I'm trying to find out some information regarding a search, database query, or user information.  Besides debugging, it's also very helpful for performance tuning. [Read More] 

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• internal error message pops up after each time system is rebooted

  - by Biju

  I had installed ubuntu 12.04 using wubi. But each time i boot the system an internal error message pops up. As show below:- Executable path /usr/share/apport/apport-gpu-error-intel.py Package xserver-xorg-video-intel 2:2.17.0-1ubuntu4 Problem Type crash Apportversion 2.0.1-0ubuntu7 and so on.. I had earlier upgraded to ubuntu 12.04 from ubuntu 11.10. And encountered the same issue. Hence i uninstalled the OS and reinstalled using wubi. I had posted the same query in ubuntu.com/support (Question Number: 195525) But couldnt find a solution. I am using dell inspiron with intel pentium. Need ur help in resolving this issue. thanking u, Biju

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• Laptop in-built Web Cam stopped working HP Probook

  - by Dave A

  My laptop (HP Probook) webcam has always worked. When I upgraded to 13.10 it stopped working. No solution found then so gave up. Recently upgraded to 14.04 still not working so thought I would ask anyone again if a solution had been found. lsusb Bus 001 Device 004: ID 0c45:62c0 Microdia Sonix USB 2.0 Camera dmesg | grep uvcvideo` [ 765.466575] uvcvideo: Found UVC 1.00 device USB 2.0 Camera (0c45:62c0) [ 765.467305] uvcvideo: UVC non compliance - GET_DEF(PROBE) not supported. Enabling workaround. [ 765.467954] uvcvideo: Failed to query (129) UVC probe control : -32 (exp. 26). [ 765.467960] uvcvideo: Failed to initialize the device (-5). [ 765.468022] usbcore: registered new interface driver uvcvideo Tried searching everywhere but there does not appear to be any clear solution to the driver issue - very weird as my camera is listed as supported by uvcvideo and it has always worked.

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• when google search gives incorrect results - how can it be reported?

  - by vgv8

  If google search query results are incorrect: How can it be reported? What is the procedure to correct it? @Lèse majesté: Incorrect results are the results that do not contain any of the searched keywords in them like in this my question @John Conde, yes I believe it is the right defitition. @DisgruntedGoat, even when there are a lot of results by keycaptcha for "Past 24 hours", the Google.com presents results only on reCAPTCHA. Anyway, they are different from those by google if to search by "keycaptcha" (in quotes) and by other search engines. Everybody thinks that searches by one keyword should be sneakily substituted by google's own promoted brand products?

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• Handling array passed to object at creation

  - by cecilli0n

  When creating my object I pass it an array of a row from my database. (everything in the array we will need, disregarding unnecessary elements at sql query level) When I need to access certain array elements from within my class, I do so like $this->row['element'] However, As I continue development, I sometimes forget what exactly is in this passed array.(this itself doesn't seem good) I am wondering if their is a professional approach to dealing with this, Or am I the only one who has these "I wonder whats in the array" thoughts. One approach to tackling this could be that when we originally pass the array, in the constructor, we assign each element of the array to its own variable, but is this considered professional practice? Additionally by doing this, we could make those variables constants, in a attempt at immutability. Overall I am trying to adhere to good software craftsmanship. Regards.

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• How to search drupal site from the new Unity lense?

  - by Ognjen

  I'm creating a simple Unity lense for my college site which is based on Drupal, but I don't know how to adapt this command for Drupal API. Please help, it's python. We now create our query url, using the Wikipedia opensearch API url = ("%s/w/api.php?action=opensearch&limit=25&format=json&search=%s" % (self.wiki, search)) I'm using template to write lense following Wikipedia example http://developer.ubuntu.com/2012/04/how-to-create-a-wikipedia-unity-lens-for-ubuntu/. I don't know python but Im familiar with C. This Drupal API calling is the only problem I have to successfully develop a lense. Please help!

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• Google Keyword Competition rating

  - by Eric

  Google offers a Keyword application that allows me to see the number of time a particular query has been made in Google. There is a column in the results named "Competition" (Actually its Concurrence in French, I'm just translating). Its a rating from 0 to 1, as in percentage. What indicator is that? EDIT * Is this something useful I should rely on? I'm not sure about how to interpret this data. Should I go for less competitive keywords with a lower number of searches or not worry about it and go for the highly searched keywords anyway? Is 50% considered high? what about 75% ? I have a very niche market that sell expensive offline services, so the very long tail is my goal (I assume). If you didn't already figured out, I'm very new to SEO =)

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• Google Maps keeps displaying in Spanish

  - by Ken Hortsch

  Originally posted on: http://geekswithblogs.net/BlueProbe/archive/2013/11/12/154610.aspxIn Chrome I use Google Maps as a search provider.  That way I can just type maps for the URL address, hit a couple of tab keys, and enter the maps address and have the page rendered with my map.  Now periodically maps were displaying in Spanish with a "click here to translate to English” option.  Huh?  My language settings on the browser and within Google settings all were English.  Turns out I had set my Chrome search provider string to include a language query parm=es.  Why would I do that?  Evil twin perhaps.

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• How can I search a Drupal site with the new Unity lens?

  - by Ognjen

  I'm creating a simple Unity lense for my college site which is based on Drupal, but I don't know how to adapt this command for Drupal API. Please help, it's python. We now create our query url, using the Wikipedia opensearch API url = ("%s/w/api.php?action=opensearch&limit=25&format=json&search=%s" % (self.wiki, search)) I'm using template to write lense following Wikipedia example http://developer.ubuntu.com/2012/04/how-to-create-a-wikipedia-unity-lens-for-ubuntu/. I don't know python but Im familiar with C. This Drupal API calling is the only problem I have to successfully develop a lense. Please help!

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• Doubt regarding search engine/plugin(One present on the website itself)

  - by Ravi Gupta

  I am new to web development and trying to study various types of websites as case study. Right now my focus is on how search engines works for an eCommerce website. I know basic functioning for a search engine, i.e. crawl web pages, index them and the display the results using those indexes. But I got little confuse in case of an eCommerce website. Don't you think that it would be better if a search engine instead of crawling the web pages containing products, it should directly crawl the database and index the products stored in the database? And when a user search for any product, it will simply give us the rows of the table which matches the user query? If this is not the case, can someone please explain how the usual method works on eCommerce website?

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• More confusion over SEO Cname and 301 redirect

  - by Alasdair

  Previous answers on this topic don't really help me with my query, so any help appreciated for a bit of a newbie. I have a new domain "domain#1.mobi" Its hosted with godaddy and has a cname and forwarding, pointing it to "domain#1.elsewhere.us" It has no content. The content is all hosted on "domain#1.elsewhere.us" which is what Google is now listing in its results. I want Google to ignore that and only list "domain#1.mobi" in its listings. How do I achieve this?

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• How to fix "error: unknown file system" on all available partitions

  - by Jonathan

  I've had a running problem with removing Linux from my Windows 7 laptop. Initially, it was installed as a dual-boot, and worked well. To remove, I deleted the partitions on my laptop. This removed grub, and I was left with needing to enter: set root=... set prefix=... insmod normal normal each restart. I didn't restore the Windows boot-loader and have since re-partitioned my drive. Now, upon reaching the command prompt screen, an ls query showshd0, with three partitions, but none of them have a recognizable boot-loader as each returns with error: unknown file system. Booting from a Windows 7 rescue disk doesn't seem to work, as it sends me to the same command prompt terminal. All I'm looking to do is restore the boot-loader, either grub or Windows 7. Any help would be appreciated. Thanks in advance.

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• Did You Know: I'm going back to Boston!

  - by Kalen Delaney

  After spending 5 months in Boston last summer and fall, I'm going back again, to teach my 5-day SQL Server Internals and Query Tuning class for Boston SQL Training. Last time I taught my course there, we had a completely full class with a waiting list. So I'm going to offer the course again! The class will be delivered April 11- 15 but early bird registration ends next Tuesday, February 1st. I'm very excited to go back, and thankful to Adam Machanic of Boston SQL Training for this opportunity. You...(read more)

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• Speaking at PASS 2012 Summit in Seattle #sqlpass

  - by Marco Russo (SQLBI)

  I will deliver two sessions at the next PASS Summit 2012: one is title Inside DAX Query Plans and the other is Near Real-Time Analytics with xVelocity (without DirectQuery).These will be two sessions that require a lot of preparation and even if I have already much to say, I still have a long work to do this summer in order to go deeper in several details that I want to investigate for completing these sessions.I already look forward to come back in Seattle!In the meantime, you have to study SSAS Tabular and if you want to get a real jumpstart why not attending one of the next SSAS Tabular Workshop Online? We are working on more dates for this fall, but there are a few dates already scheduled.And, last but not least, the early Rough Cuts edition of our upcoming SSAS Tabular book is finally available here (really near to the final print)!

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