Daily Archives

Articles indexed Wednesday April 14 2010

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

Page 8/122 | < Previous Page | 4 5 6 7 8 9 10 11 12 13 14 15  | Next Page >

  • SQL SERVER – What is Spatial Database? – Developing with SQL Server Spatial and Deep Dive into Spati

    - by pinaldave
    What is Spatial Database? A spatial database is a database that is optimized to store and query data related to objects in space, including points, lines and polygons. While typical databases can understand various numeric and character types of data, additional functionality needs to be added for databases to process spatial data types. (Source: Wikipedia) Today I will be talking about the same subject at Microsoft TechEd India. If you want to learn about how to spatial aspect of data and how to integrate them with SQL Server this is the perfect session for you. Spatial is very special concept of SQL Server and I really like how it is implemented in SQL Server. In general Performance Tuning and Query Optimization is something I always have enjoyed in my professional life. Index are my best friends and many time, by implementing and many time by removing I have improved the performance of the system. In this session, I will be talking about Index along with Spatial Data. As Spatial Database is very interesting concept, I will cover super short but very interesting 10 quick slides about this subject. I will make sure in very first 20 mins, you will understand following topics Introduction to Spatial Database One line definition Understanding Spatial Indexing Index Internals Query/Performance Tuning Query Hinting/Cost Analysis Spatial Index Catalog Views Performance Troubleshooting Finding Optimal Index using Spatial Index SP Common Errors Index Maintenance This slides decks will be followed by around 30 mins demo which will have story of geometry, geography, index internals and performance tuning. If you are interested in learning how GIS works and how SQL Server out of the box supports this wonderful tools, you will really like how the story is told. I am sure all people who attend the event will know how the Bangalore is positioned on the map of India. I will take example of Bangalore and Hyderabad and demonstrate how index can improve the performance. Well there are lots of story to tell in the session, and I will be opening this session with the beautiful script of Botticelli’s Birth of Venus created by Michael J. Swart. I will also demonstrate few real life scenario where I will be talking about Spatial Database and its usage. Do not miss this session. At the end of session there will be book awarded to best participant. My session details: Session 3: Developing with SQL Server Spatial and Deep Dive into Spatial Indexing Date: April 14, 2010 Time: 5:00pm-6:00pm Microsoft SQL Server 2008 delivers new spatial data types that enable you to consume, use, and extend location-based data through spatial-enabled applications. Attend this session to learn how to use spatial functionality in next version of SQL Server to build and optimize spatial queries. This session outlines the new geography data type to store geodetic spatial data and perform operations on it, use the new geometry data type to store planar spatial data and perform operations on it, take advantage of new spatial indexes for high performance queries, use the new spatial results tab to quickly and easily view spatial query results directly from within Management Studio, extend spatial data capabilities by building or integrating location-enabled applications through support for spatial standards and specifications and much more. Reference: Pinal Dave (http://blog.SQLAuthority.com) Filed under: Pinal Dave, SQL, SQL Authority, SQL Index, SQL Optimization, SQL Performance, SQL Query, SQL Server, SQL Tips and Tricks, SQLAuthority Author Visit, T SQL, Technology Tagged: Spatial Database

    Read the article

  • Check if a php script is running

    - by Nirmal
    I have a script that listens to a jabber server and responds accordingly. Though it's not supposed to stop, last night it did. Now I want to run a cron job every minute to check if the script is running, and start it if not. The question is, how do I check if a particular script is still running? Some solutions have been posted here, but those are all for Linux, while I am looking for a Windows solution. Any ideas please? Thanks.

    Read the article

  • Using Simple_Html_Dom Find Function PHP

    - by Belgin Fish
    Hi, for a while I've been using the simple_html_dom include, but I have a question. with the find function, i've been using $something-find('table[class="class_name"]', 0); and things like that, but I don't know how to specify two things, like $something-find('table[class="class_name"][bgcolor="#ffffff"]', 0); How would that work? (that example doesn't work)

    Read the article

  • Modeling a cellphone bill: should I use single-table inheritance or polymorphic associations?

    - by Horace Loeb
    In my domain: Users have many Bills Bills have many BillItems (and therefore Users have many BillItems through Bills) Every BillItem is one of: Call SMS (text message) MMS (multimedia message) Data Here are the properties of each individual BillItem (some are common): My question is whether I should model this arrangement with single-table inheritance (i.e., one "bill_items" table with a "type" column) or polymorphism (separate tables for each BillItem type), and why.

    Read the article

  • dial windows serial modem from php

    - by bumperbox
    I am trying to dial a phone number from php (i have a client list in a database, and thought i could use it to ring them when i click on their name here is my code, it doesn't seem to work. I can hear the phone line click, but it doesn't seem to dial. maybe i am missing some command that needs to be sent prior to atdt? $device = "COM4"; exec("mode $device BAUD=9600 PARITY=n DATA=8 STOP=1 xon=off octs=off rts=on"); $comport = fopen($device, "r+b"); if ($comport === false) { die ("Failed opening com port"); } else { echo "Com Port Open"; } stream_set_blocking($comport, 0); $atcmd = "ATDT222222222222\r"; // dial fake number if (fwrite($comport, $atcmd ) === false) { die ("Failed writing to com port"); } else { echo "Wrote $atcmd to com port"; } fclose($comport);

    Read the article

  • The .NET ActiveX component with WPF content can't be loaded by non MFC app

    - by lonelyflyer
    I have a legacy delphi program and want to add some content implemented with WPF. So I encapsulate the WPF control with a .NET/ActiveX interop technology. That means something like: [ComRegisterFunction()] public static void RegisterClass(string key); [ComUnregisterFunction()] public static void UnregisterClass(string key); The activeX component is a WinForms User Control and the WPF materials are attached to an ElemenHost in this User Control. It works fine if the host app of this ActiveX is a MFC program even without /clr switch. But my legacy app is a delphi program, and it always throw a stackoverflow exception within the constructor of my WPF user control as the program be started. I have no clue, Google is no help. and it has puzzled me for days.

    Read the article

  • Multimedia files written over WAN are getting truncated

    - by Dean
    I use the windows Multimedia API to create .wav files. 1. Open file with mmsioOpen 2. Creates WAVE,frm and data chunks using mmioCreateChunk 3. Write audio data using mmioWrite 4. Ascend out of the chunks using mmioAscend 5. Close file using mmioClose The file is being written into a temporary location, so after it has been closed it gets copied to another location using the CopyFile. This program is written in C++ and works great until the file it is writing resides over a WAN in a different city or country. The end result is a wav file that should be 20-30 seconds long ends up being 4 secodns long. It is always the last bit that is missing, so when you play it back it just stops before then of the recording. I initially thought that maybe I was copying the file too soon so as a test I put in a pause of 30 seconds after closing the file using Sleep(30000), but this made no difference to either it being truncated or by how much. I have modified the program to write to a file in parrallel using CreateFile and WriteFile, and the result is the same, so it is not an issue specifically with the mmio API's. Does anyone have any ideas why this is happening and if there is a work-around to it? I suspect that I may end up having the temporary location on the local drive, but this is quite a big change to the application as well as existing deployments. thanks for everyones time Dean

    Read the article

  • Splitting/Merging 3gp files using a java library

    - by user141146
    Hi, I'm wondering if there's a java library out there that can manipulate 3gp files. Mostly I'm interested in splitting or merging existing video files. I've looked at JMF (java media framework), but it doesn't support 3gp…and FFmpeg looks promising, but it's not clear that the library allows splitting/merging of existing files. Does such a library exist?

    Read the article

  • Excel VBA: importing CSV with dates as dd/mm/yyyy

    - by Michael Smith
    ello I understand this is a fairly common problem, but I'm yet to find a reliable solution. I have data in a csv file with the first column formatted dd/mm/yyyy. When I open it with Workbooks.OpenText it defaults to mm/dd/yyyy until it figures out that what it thinks is the month exceeds 12, then reverts to dd/mm/yyyy. This is my test code, which tries to force it as xlDMYFormat, and I've also tried the text format. I understand this problem only applies to *.csv files, not *.txt, but that isn't an acceptable solution. Option Base 1 Sub TestImport() Filename = "test.csv" Dim ColumnArray(1 To 1, 1 To 2) ColumnsDesired = Array(1) DataTypeArray = Array(xlDMYFormat) ' populate the array for fieldinfo For x = LBound(ColumnsDesired) To UBound(ColumnsDesired) ColumnArray(x, 1) = ColumnsDesired(x) ColumnArray(x, 2) = DataTypeArray(x) Next x Workbooks.OpenText Filename:=Filename, DataType:=xlDelimited, Comma:=True, FieldInfo:=ColumnArray End Sub test.csv contains: Date 11/03/2010 12/03/2010 13/03/2010 14/03/2010 15/03/2010 16/03/2010 17/03/2010 Thanks Michael

    Read the article

  • Multiple classes in a Python module

    - by ralphL
    I'm very new to Python (I'm coming from a JAVA background) and I'm wondering if anyone could help me with some of the Python standards. Is it a normal or "proper" practice to put multiple class in a module? I have been working with Django and started with the tutorials and they place their database model classes in the same module. Is this something that is normally done or should I stick with 1 class per module? Is their a reason I would do one over the other? Hope I'm being clear and not to generic. Thanks to everyone in advance!

    Read the article

  • Javascript Square bracket notation for global variables

    - by Yousuf Haider
    I ran into an interesting issue the other day and was wondering if someone could shed light on why this is happening. Here is what I am doing (for the purposes of this example I have dumbed down the example somewhat): I am creating a globally scoped variable using the square bracket notation and assigning it a value. Later I declare a var with the same name as the one I just created above. Note I am not assigning a value. Since this is a redeclaration of the same variable the old value should not be overriden as described here: http://www.w3schools.com/js/js_variables.asp //create global variable with square bracket notation window['y'] = 'old'; //redeclaration of the same variable var y; if (!y) y = 'new'; alert(y); //shows New instead of Old The problem is that the old value actually does get overriden and in the above eg. the alert shows 'new' instead of 'old'. Why ? I guess another way to state my question is how is the above code different in terms of semantics from the code below: //create global variable var y = 'old'; //redeclaration of the same variable var y; if (!y) y = 'new'; alert(y); //shows New instead of Old

    Read the article

  • What's the big difference between those two binary files?

    - by Lela Dax
    These are two files (contained in the tar.bz2) that were generated using a just-in-time compiler for a game engine. The generated code from ui-linux.bin is from a x86_64 gcc compiler and the ui-windows.bin from the same brand of compiler but targetting win x86_64 (mingw-w64). I've attempted to debug a problem that occurs only on the windows version and i stumbled upon what it seems to be different end-binary code. However, the input assembly code was virtually identical (only difference being pointer representations as int). (there's theoretically no winabi/unixabi conflict since that's taken care of by an attribute flag on certain declarations involved). Any idea what it might be that makes these two binary codes different? The C for the mini-compiler and base assembly producing it appears compatible at first glance. http://www0.org/vm/bins.tar.bz2

    Read the article

  • I am trying to use user-defined functions to print out an T out of stars, but i need help shifting t

    - by lm
    I know main() and other parts of the prog are missing, but please help def horizLine(col): for cols in range(col): print("*", end='') print() def line(col): #C,E,F,G,I,L,P,T for col in range(col//2): print("*", end='') print() def functionT(width): horizLine(width) line(width) enter width for the box width = int(input("Enter a width between 5 and 20: ")) letter=input("Enter one of the capital letters: T ") if ((width >= 5 and width <=20)): if letter=="T": functionT(width) else: print() print("Invalid letter!") else: print("You have entered a wrong range for the width!") main()

    Read the article

  • NSFetchedResultsControllerDelegate in a second view controller (not firing?)

    - by MTBPatriot
    I am running into an issue similar to the one described here: http://stackoverflow.com/questions/1319940/nsfetchedresultscontrollerdelegate-not-firing (the delegate for my NSFetchedResultsControllerDelegate are not being called on my second view controller) I can't seem to get the proposed solutions to work. I have a main view that loads information from Core Data just fine, but when it pushes a separate controller (and passes the managed object to it), the delegate methods won't fire. I've read about 'mergeChangesFromContextDidSaveNotification' but I don't understand how to synchronize the two manage objects and/or get the delegate methods to be called. Any help would be greatly appreciated. Thank you, Mike

    Read the article

  • Check if a php script is still running

    - by Nirmal
    I have a script that listens to a jabber server and responds accordingly. Though it's not supposed to stop, last night it did. Now I want to run a cron job every minute to check if the script is running, and start it if not. The question is, how do I check if a particular script is still running? Some solutions have been posted here, but those are all for Linux, while I am looking for a Windows solution. Any ideas please? Thanks.

    Read the article

  • VS 2008 hangs(slow) when I select "File > Open > Web Site..."

    - by Sam
    When I try to select the following "File Open Web Site" or use the shortcut key "Shift + Alt + O" (which does the same), Visual Studio 2008 hangs with the loading mouse icon for about 8-10 seconds then the file. But if I do "File Open Project/Solution.." or "File Open File..." the explorer window comes up in under a second, instantly most times. Computer Specs: Windows 7 x64 Visual Studio 2008 Pro Edition with Service Pack 1 Intel Core2 Due e6420 @ 3.2GHz 4GB DDR2

    Read the article

  • how to disable window close button in OSX using wxpython?

    - by nur
    i am working on an application for osx using wxpython. I want to minimize window to dockbar when user clicks on the window close button so that it can be restored from the dockbar. How can i do that? Currently i am having problem restoring window because it gets destroyed when user clicks on the close button. how can i prevent that? Thanks in advance

    Read the article

  • Help with route rewrite in asp.net mvc

    - by NachoF
    Im having a really hard time understanding routing. Please help me with this problem. Each of my controllers have these three actions right now Users have Index, Create and Edit Locations have Index, Create and Edit Companies have Index, Create and Edit The thing is, it all gets done through ajax. I have jquery ui tabs with two tabs for each, Create and Edit So the Index method is always the one that gets called for action links. and inside this main view is that you can call(by clicking on the tab icon) the other methods that return an ajax view that gets output into the jqeury tab (I hope thats clear) I have a sidebar with links to the controllers. and to specific methods of these controllers. The wanted behavior is that it should actually go into the Index Method and then with some logic autoload the wanted tab. It all works just fine right now. But my urls are horrible. To get to the create method for Users I have to go this url http://localhost/Users/Index/1 http://localhost/Users/Index/2 I want the behavior of these links to be remapped to these links http://localhost/Users/Create http://localhost/Users/Edit So even though it seems as if you are calling the Create method of the controller you are actualling always calling the Index Method.... (I know how to transform Create into "1" and Edit into two, so dont worry about that part Hope thats clear. Thanks in advance Edit: Just realized that this might not be possible cause then when I actually need to call the methods (with ajax) it wont know what to do.... am I correct?

    Read the article

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

< Previous Page | 4 5 6 7 8 9 10 11 12 13 14 15  | Next Page >