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• Change Tracking

  - by Ricardo Peres

  You may recall my last post on Change Data Control. This time I am going to talk about other option for tracking changes to tables on SQL Server: Change Tracking. The main differences between the two are: Change Tracking works with SQL Server 2008 Express Change Tracking does not require SQL Server Agent to be running Change Tracking does…

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• SQL SERVER – DMV – sys.dm_os_waiting_tasks and sys.dm_exec_requests – Wait Type – Day 4 of 28

  - by pinaldave

  Previously, we covered the DMV sys.dm_os_wait_stats, and also saw how it can be useful to identify the major resource bottleneck. However, at the same time, we discussed that this is only useful when we are looking at an instance-level picture. Quite often we want to know about the processes going in our server at the given instant. Here is…

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• SQL SERVER – A Puzzle – Fun with NULL – Fix Error 8117

  - by pinaldave

  During my 8 years of career, I have been involved in many interviews. Quite often, I act as the  interview. If I am the interviewer, I ask many questions – from easy questions to difficult ones. When I am the interviewee, I frequently get an opportunity to ask the interviewer some questions back. Regardless of the my capacity in…

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• Working with Joins in LINQ

  - by vik20000in

  While working with data most of the time we have to work with relation between different lists of data. Many a times we want to fetch data from both the list at once. This requires us to make different kind of joins between the lists of data. LINQ support different kinds of join Inner Join     List<Customer> customers =…

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• Live Debugging

  - by Daniel Moth

  Based on my classification of diagnostics, you should know what live debugging is NOT about - at least according to me :-) and in this post I'll share how I think of live debugging. These are the (outer) steps to live debugging Get the debugger in the picture. Control program execution. Inspect state. Iterate between 2 and 3…

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• Strange rendering in XNA/Monogame

  - by Gerhman

  I am trying to render G-Code generated for a 3d-printer as the printed product by reading the file as line segments and the drawing cylinders with the diameter of the filament around the segment. I think I have managed to do this part right because the vertex I am sending to the graphics device appear to have been processed correctly. My…

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• Why does my code dividing a 2D array into chunks fail?

  - by Borog

  I have a 2D-Array representing my world. I want to divide this huge thing into smaller chunks to make collision detection easier. I have a Chunk class that consists only of another 2D Array with a specific width and height and I want to iterate through the world, create new Chunks and add them to a list (or maybe a Map with Coordinates…

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• SharePoint 2010 HierarchicalConfig Caching Problem

  - by Damon

  We've started using the Application Foundations for SharePoint 2010 in some of our projects at work, and I came across a nasty issue with the hierarchical configuration settings.  I have some settings that I am storing at the Farm level, and as I was testing my code it seemed like the settings were not being saved - at least that…

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• SCCM Report to identify machines with 64-bit capable hardware

  - by GAThrawn

  Currently looking at deployment options for Windows 7. One of the questions we're looking into is 32 bit vs 63 bit. I'm trying to run a SCCM report against our estate to identify which machines are 64-bit capable (whether or not they're currently running a 64-bit OS). There seem to be a few resources out on the net for this (here,…

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• JPA : optimize EJB-QL query involving large many-to-many join table

  - by Fabien

  Hi all. I'm using Hibernate Entity Manager 3.4.0.GA with Spring 2.5.6 and MySql 5.1. I have a use case where an entity called Artifact has a reflexive many-to-many relation with itself, and the join table is quite large (1 million lines). As a result, the HQL query performed by one of the methods in my DAO takes a long time. Any…

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• Variable size encrypted container

  - by Cray

  Is there an application similar to TrueCrypt, but the one that can make variable size containers opposed to fixed-size or only-growing-to-certain-amount containers which can be made by TrueCrypt? I want this container to be able to be mounted to a drive/folder, and the size of the outer container not be much different from the…

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• IPTables: NAT multiple IPs to one public IP

  - by Kaemmelot

  I'm looking for a way how to nat 2 or more inner IPs (in my case xen doms) to one outer IP. I tried to use iptables -t nat -A PREROUTING -d 123.123.123.123 -j DNAT --to 1.2.3.4 --to 1.2.3.7 iptables -t nat -A POSTROUTING -s 1.2.3.4 -j SNAT --to 123.123.123.123 iptables -t nat -A POSTROUTING -s 1.2.3.7 -j SNAT --to…

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• CSS layout problem on Firefox with filling space between end of left column and footer

  - by Jean

  Basically, the left column is supposed to extend to the footer with the continuous red color. However, in Firefox on pages with lots of text, the column does not extend to the footer and leaves a large white gap--see site: http://library.luhs.org/JHSII/about.html I've tried readjusting the heights, creating the sticky…

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• eXist-db: can't start webstart client on a closed port, reverse proxied via apache

  - by rvdb

  I am configuring an Apache HTTP server so it reverse proxies requests starting with /app/ to an eXist-db instance running in a Tomcat server, on port 8082. This port has been closed in the firewall and is inaccessible to the outer world. Following the eXist documentation, I have following rules in place in my httpd.conf…

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• Exclude list of specific files in wget

  - by nanker

  I am trying to download a lot of pages from a website on dial-up and it can be brutally slow. I have almost got the perfect wget command, but because I'm downloading pages from the same site wget wastes times downloading the same standard images for each page. If I know the name of the default page images, is there any…

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• Tools for displaying a multidimensional data table?

  - by ShreevatsaR

  [Apologies if this sort of question is off-topic for SuperUser. Please redirect to the right place if so.] There is a 3-dimensional array of values. (That is, instead of a table/2-dimensional array with values in a grid, the values can be thought of in a cube instead.) Is there a way to display this "cube"…

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• Multidimensional data table?

  - by ShreevatsaR

  [Apologies if this sort of question is off-topic for SuperUser. Please redirect to the right place if so.] There is a 3-dimensional array of values. (That is, instead of a table/2-dimensional array with values in a grid, the values can be thought of in a cube instead.) Is there a way to display this "cube"…

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• Erratic WiFi 2.4 GHz channel spikes, what gives?

  - by Francis W. Usher

  Sorry guys, first a gripe about my neighbor's WiFi access point (it is related): they totally hog the center nine 2.4 GHz channels (3-11), centered right at 7! I know the outer regions of the signal don't make as much of a difference, and technically they're running channels 5 & 9. Anyway, their signal…

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• XenServer VMs can't reach network

  - by toto

  I'm currently trying to setup a small cloud architecture , I'm using in the installation CloudStack 2.2.14 which need two node : a management server (as node1) to provision the cloud and a hyperviser XenServer 5.6 SP2 to host the VMs (as node2). I succeded to create both node1 and node2 into an ESXi 5…

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• LXC, Port forwarding and iptables

  - by Roberto Aloi

  I have a LXC container (10.0.3.2) running on a host. A service is running inside the container on port 7000. From the host (10.0.3.1, lxcbr0), I can reach the service: $ telnet 10.0.3.2 7000 Trying 10.0.3.2... Connected to 10.0.3.2. Escape character is '^]'. I'd love to make the service running…

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• Determining physical location of data on a disc

  - by Synetech

  Does anybody know of a way to find out where, physically on a CD or DVD a given piece of data would be located? I am trying to watch a DVD at the moment, and am about half-way through, but it keeps dying at a specific spot in the film, presumably because of a scratch. I have a repair kit, but I…

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• What's New in ASP.NET 4

  - by Navaneeth

  The .NET Framework version 4 includes enhancements for ASP.NET 4 in targeted areas. Visual Studio 2010 and Microsoft Visual Web Developer Express also include enhancements and new features for improved Web development. This document provides an overview of many of the new features that are…

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• Inspire Geek Love with These Hilarious Geek Valentines

  - by Eric Z Goodnight

  Want to send some Geek Love to that special someone? Why not do it with these elementary school throwback valentines, and win their heart this upcoming Valentine’s day—the geek way! Read on to see the simple method to make your own custom Valentines, as well as download a set of eleven…

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• Master Note for Generic Data Warehousing

  - by lajos.varady(at)oracle.com

  ++++++++++++++++++++++++++++++++++++++++++++++++++++ The complete and the most recent version of this article can be viewed from My Oracle Support Knowledge Section. Master Note for Generic Data Warehousing [ID 1269175.1] ++++++++++++++++++++++++++++++++++++++++++++++++++++In this…

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• Improvements to Joshua Bloch's Builder Design Pattern?

  - by Jason Fotinatos

  Back in 2007, I read an article about Joshua Blochs take on the "builder pattern" and how it could be modified to improve the overuse of constructors and setters, especially when an object has a large number of properties, most of which are optional. A brief summary of this design…

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