Search Results

Search found 90197 results on 3608 pages for 'data type conversion'.

Page 246/3608 | < Previous Page | 242 243 244 245 246 247 248 249 250 251 252 253  | Next Page >

  • Is it Considered Good SQL practice to use GUID to link multiple tables to same Id field?

    - by Mallow
    I want to link several tables to a many-to-many(m2m) table. One table would be called location and this table would always be on one side of the m2m table. But I will have a list of several tables for example: Cards Photographs Illustrations Vectors Would using GUID's between these tables to link it to a single column in another table be considered 'Good Practice'? Will Mysql let me to have it automatically cascade updates and delete? If so, would multiple cascades lead to an issues? UPDATE I've read that GUID (a hex number) Generally takes up more space in a database and slows queries down. However I could still generate 'unique' ids by just having the table initial's as part of the id so that the table card's id would be c0001, and then Illustrations be I001. Regardless of this change, the questions still stands.

    Read the article

  • Sync Banshee library data.

    - by Dom
    I use Banshee to organise my music, I particularly like its scoring system and I have smart playlists based on it. However, I have two versions of my music library, one on each of my computers. As one of the computers is small I only have a favourite set of songs on that computer rather than my whole collection. The computers are not on a local network, but I do use Ubuntu One for file sharing between them. Is there any way I can synchronise song data (play count, score, skip count ...) and playlist data (including smart playlists that include songs based on this data) between the two computers? This would only be relevant of course for the songs that exist on both computers, the songs that exist on only one would need to be ignored. I did consider putting the library data file (I think it is .xml but I'm not sure) into the shared file and creating a symbolic link to it, but then I wouldn't be able to have a different set of songs on each computer. Thank you.

    Read the article

  • Deleting a game object causing an access violation

    - by Balls
    I tried doing this but it cause an access violation. void GameObjectFactory::Update() { for( std::list<GameObject*>::iterator it=gameObjectList.begin() ..... (*it)->Update(); } void Bomb::Update() { if( time == 2.0f ) { gameObjectFactory->Remove( this ); } } void GameObjectFactory::Remove( ... ) { gameObjectList.remove( ... ); } My thoughts would be to mark the object to be dead then let the factory handle it the on next frame for deletion. Is it the best and fastest way? What do you think?

    Read the article

  • Places to store basic data

    - by Ella
    I am using PHP. I'm building a fully modular CMS, which is destined for the public. Some people might view this as a framework, but I intend to write a set of extensions for it, extensions that will make it a CMS :P Because it's completely modular I have a problem figuring out how to load extensions. Practically I need to get the list of active extensions, so I can load them inside my base class. I load them by reading some file headers, which contain a "dependency" field. That field decides the order in which I have to instantiate the objects. The problem is that when the CMS starts I have no database interface, because that's an extension too, so I can't store the active extensions list in the database :) You might ask how are extensions activated in the first place. Well - in the administration interface, which is an extension as well (obviously on first install of the CMS there will be some extensions active by default). Could writing that list inside a text file be a solution? The problem is that a lot of hosts are not very nice with scripts when they write files. And since this CMS is public I might have a problem here?

    Read the article

  • Q: MySQL Cluster - Data insertion in NDBCLUSTER table - error out after 5 million rows

    - by Mata
    MysqlCluster version: mysql-5.6.11 ndb-7.3.2 Insertload = 50 M dataset Datanodes = 3 LOAD DATA INFILE '/input_50m/Table_1_sorted.csv' IGNORE INTO TABLE nw_ndb FIELDS TERMINATED BY ',' LINES TERMINATED BY '\n' We recently setup a new mySQL cluster and trying to load data from a flat file. But getting error “Got temporary error 4010 'Node failure caused abort of transaction' from NDBCLUSTER" when inserting 5 million rows in a single table in MySQL Cluster. We are using "LOAD DATA INFILE" command to load the data in the table from csv file. Server (musqld, ndb nodes) has good hardware: 126 GB RAM, 32 Gb allocated to mysqld tried below settings with no effect: SET autocommit=0; SET FOREIGN_KEY_CHECKS=0; SET unique_checks=0; SET GLOBAL ndb_batch_size=8*1024*1024; SET GLOBAL ndb_cache_check_time = 1000; SET GLOBAL ndb_index_stat_cache_entries = 10000000; SET SESSION BULK_INSERT_BUFFER_SIZE=256217728; SET GLOBAL KEY_BUFFER_SIZE=256217728; Any clues?

    Read the article

  • Best way to update UI when dealing with data synchronization

    - by developerdoug
    I'm working on a bug at work. The app is written in Objective-C for iOS based device, for the iPad. I'm the new guy there and I've been given a hard task. Sometimes, the UIButton text property does not show the correct state when syncing. Basically, when the app is syncing, my UI control would say "Syncing" and when its not syncing it'll display "Updated @ [specific date]". Right now there is a property on the app delegate called "SyncInProgress". When querying / syncing, occurring on background thread, it updates a counter. The property will return a bool checking expression 'counter 0'. There are three states I need to deal with. Sync has started. Sync is updating tables. Sync finished. These items need to occur in order. My coworker suggested to take a state based approach instead of just responding to events. I'm not sure about how to go about that. Would it be best to have the UI receive a notification to determine what state its in or to pull every so often if state changed? Here are two posts that I put on stackoverflow, in the last few days, that relate to this. http://stackoverflow.com/questions/11025469/ios-syncing-using-a-state-approach-instead-of-just-reacting-to-events http://stackoverflow.com/questions/11037930/viewcontroller-when-viewwillappear-called-does-not-always-correctly-reflect-stat Any ideas that anyone might have to very much appreciated. Thanks, developerDoug

    Read the article

  • Content, MetaData and Taxonomy 2 Overview of the Data Layer

    This article is cross-posted from my personal blog. In DotNetNuke version 5.3, we introduced the concept of a centralized Content store, together with the ability to apply Taxonomies (categories) to the content. We have extended this in DNN 5.4 by completing the MetaData API as well as adding Folksonomy (user tags). In this series of blogs I will explain how developers can take advantage of these new features in their own extensions. In the first blog in this series I covered the Taxonomy Manager...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

    Read the article

  • PhoneGap Build 1.0 : Adobe relance son outil de conversion d'applications mobiles multiplateforme et enrichit son offre Cloud

    PhoneGap Build 1.0 : Adobe relance l'outil de conversion d'applications mobiles multiplateforme Et enrichit son offre Cloud avec 5 autres services Dans le cadre de sa conférence Create theWeb, Adobe a dévoilé hier une palette d'outils et de services pour les designers et les développeurs. Des outils très orientés HTML5, CSS3 et JavaScript. Leur but : « créer plus facilement des sites web, des contenus numériques et des applications mobiles ». La liste est assez longue. On y trouve PhoneGap Build 1.0 et une gamme Edge qui se compose à présent de Edge Animate 1.0, EdgeInspect 1.0 (ex-Shadow), Edge Web Fonts, Edge Code et en avant-première Edge Reflow.

    Read the article

  • Recovery from hell - undeleting partition overwritten by Xubuntu 12.10 installer?

    - by DaimyoKirby
    This is turning into a nightmare - following my initial recovery of my two partitions, I went to install Xubuntu 12.10 (again). At this time I had two partitions - one of ~39 GB had Zorin OS 6 installed on it, and another of ~33 GB had nothing installed, just a few files in it that I had manually backed up (moved) there. When I got to the partitioning step, I chose "Replace Zorin OS 6 with Xubuntu 12.10", along with LVM, naturally thinking that the installer wouldn't touch the second partition, since Zorin wasn't installed on it. I was dead wrong. Upon booting my newly installed Xubuntu 12.10, I found in gparted that there were only two partitions - ~255MB, which appears to have the boot stuff in it (it's flagged boot in gparted), and another of ~74 GB. Question: Is there any way to salvage my old files on the non-Zorin ext3 partition? I'm really upset I made such a dumb move (again...), and any and all help is appreciated very, very much!

    Read the article

  • Saving mobile application data when no service?

    - by Abe Miessler
    Say I have a mobile application that allows users to enter information which is then uploaded to a central location. I had planned on building this using only HTML5 and javascript (non-native app), but I'm assuming if someone is in an area where there is no service they simply will not be able to use the app. As a work around would it be possible to write a native app that saves the information on the device and then uploads it whenever service returns? If so, is it possible to write a native app entirely in HTML5 and Javascript that does this?

    Read the article

  • Data Mining Email with Thunderbird

    - by user554629
    Oracle has many formal, searchable locations:  Service Requests, BugIDs, Technical Documents. These contain the results of an investigation for a customer crash situation;  they're created after the intense work of resolution is over, and typically contain the "root cause" of the failure ... but not the methods for identifying that cause. Email is still the standby for interacting with quickly formed groups of specialists, focusing on a particular incident.Customer BI, Network and System specialists;  Oracle Tech Support, Development, Consultants; OEM Database, OS technical support.   It is a chaotic, time-oriented set of configuration, call stacks, changes, techniques to discover and repair the failure. I needed to organize that information into something cohesive to prepare the blog entry on Teradata.  My corporate email client of choice is Thunderbird.   My original (flawed) search technique: R-Click on Inbox in Thunderbird left pane, and choose Search Messages Subject:  [ teradata ] Results: A new window titled "Search Messages"Single pane of selected messagesColumn headings:  Subject  From  Date  LocationNo preview window for messages There are 673 email entries in the result ( too many )  R-click icon just above the vertical scroll bar on the rightCheck [x] Tags Click on the Tags header to sort by "Important" View contents of message by double-clickingOpens in the Thunderbird Main Window in a new Tab Not what I was looking for, close the tab and try again. There has to be a better way.  ( and there is ) I need to be more productive, eliminating duplicate-chained messages, for example.   Even the Tag "Important" that was added during the investigation phase, is "not so much" for my current task. In the "Search Messages" window, click [ Save as Search Folder ] [ teradata ]  Appears as a new folder in my Inbox. Focus on that folder and the results appear with a list of messages like every other folder in the Inbox.Only the results of the search are shown A preview window is now available for each message Sort, Select message, Cursor Down ... navigates quickly through the messages. But wait, there's more ... Click Find ( Ctrl-F) Enter a search term for the message body, like.[ LIBPATH ] The search is "sticky" ... each message you cycle through wil focus ( and highlight) the LIBPATH search term. And still more .... Reset the Tag"Important" message.   Press "1" and the tag is removed Press "4" and a new Tag "ToDo" is applied After applying all of the tags, sort by Tag for a new message order Adjust the search criteria ... R-click on the [ teradata ] search folder, and choose Properties Add additional criteria to narrow the search Some of the information I'm looking for did not contain "teradata" in the subject line. + Body  [ contains ] [ Best Practices ] That's it.  Much more efficient search.   Thank you Thunderbird.

    Read the article

  • Data base preference for network based C# windows application [on hold]

    - by Sinoop Joy
    I'm planning to develop a C# widows based application for an academy. The academy will have different instances of application running in different machines. The database should have shared access. All the application instances can do update, delete or insert. I've not done any network based application. Anybody can give any useful link to where to start with ? Which database would give max performance with all required features i said for this scenario ?

    Read the article

  • Unit testing a text index

    - by jplot
    Consider a text index such as a suffix tree or a suffix array supporting Count queries (number of occurrences of a pattern) and Locate queries (the positions of all the occurrences of a pattern) over a given text. How would you go about unit testing such a class ? What I have in mind is to generate a big random string then extract a random substring from this big string and compare the results of both queries with naive implementations (such as string::find). Another idea I have is to find the most frequent substring of length l appearing in the original string (using perhaps a naive method) and use these substrings for testing the index. This isn't the best way, so what would be a good design of the unit tests for a text index ? In case it matters, this is in C++ using google test.

    Read the article

  • Greatly Enhanced LINQ Capabilities in Devart ADO.NET Data Providers

    Devart has recently announced the release of dotConnect products for Oracle, MySQL, PostgreSQL, and SQLite - ADO.NET providers that offer Entity Framework support, LINQ to SQL support, and contain an ORM model designer for developing LINQ to SQL and EF models based on different database engines. New dotConnect ADO.NET Providers offer advanced LinqConnect ORM solution (formerly known as Devart LINQ support) closely compatible with Microsoft LINQ to SQL and having its own advanced features. Devart...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

    Read the article

  • Simple step by step process to import MS Access data into SQL Server using SSIS

    Sometimes we need to import information from MS Access. We could use the Microsoft SQL Server Migration Assistant, but sometimes we need to add custom transformations and it is necessary to use more sophisticated tools. In this tip, we are going to walk through step by step how to migrate a MS Access table to SQL Server using SQL Server Integration Services (SSIS). What are your servers really trying to tell you? Find out with new SQL Monitor 3.0, an easy-to-use tool built for no-nonsense database professionals.For effortless insights into SQL Server, download a free trial today.

    Read the article

  • Ubuntu 12.04 partioning an external drive without lossing data

    - by Menelaos Perdikeas
    I have an Ubuntu 12.04 with an external 1.5T disk (just for data). It is /dev/sdc1 seen below: $ df -T Filesystem Type 1K-blocks Used Available Use% Mounted on /dev/sda1 ext4 1451144932 27722584 1350794536 3% / udev devtmpfs 6199460 4 6199456 1% /dev tmpfs tmpfs 2482692 988 2481704 1% /run none tmpfs 5120 0 5120 0% /run/lock none tmpfs 6206724 284 6206440 1% /run/shm /dev/sdc1 fuseblk 1465135100 172507664 1292627436 12% /media/Elements The thing is I would like to implement this rsync-based backup strategy and I want to use my /dev/sdc1 external drive for that. Since the guide mentioned above recommends placing the backup directory in a separate partition I want to repartition the /dev/sdc1 external hard disk but retain existing data in a separate partition. E.g. split /dev/sdc1 into two partitions: (i) one to be used exclusively for the rsync-based backup and (ii) the other for the existing miscellaneous data. How should I go about partitioning with minimal risk to my existing data and what kind of filesystem do you recommend? I would prefer a console-based guide but unfortunately all the material I found on the web is oriented towards partitioning the main (bootable) disk and not an external fuseblk filesystem used only for passive data.

    Read the article

  • Using Shell32 to extract Mimes on Windows Server 2008

    - by Léon Pelletier
    In a desktop app, I'm using Shell32 to extract Mime infos and ID3 tags. I want to do the same in ASP.Net on server side with http posted files, plus fetch some other infos, but as a Windows Server 2008, there are not several media applications installed, so I wonder if it will still retrieve a lot of informations from the files. Will it be possible to do it from server side? If yes, will it fetch several Mimes without media app installed. If not, is there some Mime pack to get some file informations without the app being installed. [EDIT] I installed VLC player and Windows Media Player on the server, which provide all MP3s / movies infos (Duration, Artist, Album, Width, Height, etc.), but I don't know if this is a good practice.

    Read the article

  • Is there a way to recover a file that I have deleted but is still open somewhere?

    - by George Edison
    This question is related to How to recover deleted files? but it is slightly different in nature. Suppose I have a file named ~/something open in a text editor. Further suppose that I open a terminal and run the following command while the file is still open in the text editor: rm ~/something This will delete the file. Now suppose that I changed my mind and wanted to get the file back. The file is still open in the text editor, so it hasn't been removed from the disk or filesystem yet. Is there any way to recover it?

    Read the article

  • Requirement, architecture data capture tool

    - by Deno
    Are there any tools available for the following use case: I am planning to write a complex application and now I just know about the basic functional requirments. I am refining the functionality with more and more details. I am also writing down how to implement this in software architecture perspective. I am in a situation where there are multiple ways implement a certain functionality and based on the selected approach, other parts of the program will also change. At this moment, I don't want to decide on the approach to use, I just want to list down all the options, present to a wider audience and get it finalized. Are there any standard software tools to do this? I know I can use MS excel or some mind mapper tools, but just thinking of some standard tools (not just for programmers, but for managers and other) availability Thanks, Den

    Read the article

  • audio and video data in RTP

    - by Banana
    Suppose a user wants to transmit both audio and video to another user, whose formats are AMR for audio and H.264 for video. Does the user have to transmit audio and video packets always separately? Meaning that it is not possible to mix audio and video within the same RTP packed, is that correct? If this is true I guess the RTP protocol will need to know the SSRC of both audio and video to be able to check the sync of the two streams.

    Read the article

< Previous Page | 242 243 244 245 246 247 248 249 250 251 252 253  | Next Page >