Search Results

Search found 58440 results on 2338 pages for 'data cleansing'.

Page 124/2338 | < Previous Page | 120 121 122 123 124 125 126 127 128 129 130 131  | Next Page >

  • EAV - is it really bad in all scenarios?

    - by Giedrius
    I'm thinking to use EAV for some of the stuff in one of the projects, but all questions about it in stackoverflow end up to answers calling EAV an anti pattern. But I'm wondering, if is it that wrong in all cases? Let's say shop product entity, it has common features, like name, description, image, price, etc., that take part in logic many places and has (semi)unique features, like watch and beach ball would be described by completely different aspects. So I think EAV would fit for storing those (semi)unique features? All this is assuming, that for showing product list, it is enough info in product table (that means no EAV is involved) and just when showing one product/comparing up to 5 products/etc. data saved using EAV is used. I've seen such approach in Magento commerce and it is quite popular, so may be there are cases, when EAV is reasonable?

    Read the article

  • The Emergence of a New Architecture for Long-term Data Retention

    - by Claudia Caramelli-Oracle
    Dear Partner, A new research report from Wikibon explains how the combination of flash and tape makes for a superior solution for long-term data archives versus using dedupe appliances. The combination of these two technologies, that have been in the market, one for a few years and the other for decades, introduces a new concept. The concept is “Flape”, a concept first coined by Wikibon in October of 2012. Flape is a combination of Flash (SSD) technology and tape…this combination of technologies when used for long-term archiving can save IT departments as much as 300% of their overall IT budget over the course of 10 years. Do you want to know more? You can review the whole report here.

    Read the article

  • Retrieve data from an ASP.Net application using Ado.Net 2.0 disconnected model

    - by nikolaosk
    This is the second post in a series of posts regarding to ADO.Net 2.0. Have a look at the first post if you like. In this post I am going to investigate the "Disconnected" model. When I say "Disconnected" I mean Datasets . Datasets are in memory representations of tables in a particular database. A Dataset contains a Table collection and each Table collection contains a Row collection and each Row collection contains a Columns collection. So initially you connect to the database, get the data to...(read more)

    Read the article

  • Construct sentences from tabular data

    - by Sumeet
    I have a huge set of html files an have to retrieve the meaningful information from them. Most of the task is accomplished, now the problem is with HTML tables. I have some literature on how to extract meaningful tables from html, but my problem is with creating meaningful sentences from tabular data (or attribute value pairs extracted from a table). Are there any NLP/Machine learning techniques to do this? Here is what I expect. Suppose below is a sample table: col_Name: Sumeet col_year: 2011 col_winner: quiz Can this be made to something meaningful like "Sumeet won quiz in 2011"?

    Read the article

  • Countour Mapping API

    - by Crash
    I have done some searching on Google, but haven't come up with much as of yet. I am wanting to take a set of point data, which I had previously been using to create weighted points for a heat map through the Google API, and turn them into a contour map to overlay on the Google Maps API. I haven't seen anything in Google's code that would let me do this. Does anyone know of a good API to create such an overlay? Or is there possibly something I have overlooked that Google offers?

    Read the article

  • Retrieve data from an ASP.Net application using ADO.Net 2.0 connected model

    - by nikolaosk
    I have been teaching Entity Framework,LINQ to SQL,LINQ to objects,LINQ to XML for some time now. I am huge fan of LINQ to Entities and I am using Entity Framework as my main data access technology. Entity framework is in the second version right now and I can accomplish most of the things I need. I am sure the guys in the ADO.Net team will implement many more features in the future. I am a strong believer that you cannot really understand the benefits of LINQ to SQL or LINQ to Entities unless you...(read more)

    Read the article

  • Several classes need to access the same data, where should the data be declared?

    - by Juicy
    I have a basic 2D tower defense game in C++. Each map is a separate class which inherits from GameState. The map delegates the logic and drawing code to each object in the game and sets data such as the map path. In pseudo-code the logic section might look something like this: update(): for each creep in creeps: creep.update() for each tower in towers: tower.update() for each missile in missiles: missile.update() The objects (creeps, towers and missiles) are stored in vector-of-pointers. The towers must have access to the vector-of-creeps and the vector-of-missiles to create new missiles and identify targets. The question is: where do I declare the vectors? Should they be members of the Map class, and passed as arguments to the tower.update() function? Or declared globally? Or are there other solutions I'm missing entirely?

    Read the article

  • Oracle Master Data Management at OOW 2012: A Look Back

    - by Mala Narasimharajan
    Oracle Master Data Management had a great showing at OOW 2012 ! Special thanks to our customers and partners for presenting with us, sharing their use cases and successes as well as co-sponsoring events.  Almost every session at the show featured a customer and the tremendous success or transformation Oracle MDM resulted in at their organization.  At the DemoGrounds, Oracle MDM saw tremendous interest with many individuals enquiring to see demos, and have their technical questions answered.  The demos provided a perfect opportunity to showcase technical enhancements as well as what features are on the horizon.The MDM customer appreciation dinner event was a smashing success as cusotmers and partners enjoyed a spectacular water view, fine dining and cocktails and one of San Francisco's finest restaurants - The Water Bar.  In a short while the planning for next year's OpenWorld will be under full swing and we can't wait to get started.  See you at OOW 2013!!    

    Read the article

  • Getting data from csv file and returning objects in collections

    - by Jacob
    I have very simple class of person as below: public class Person { int ID; Gender gender; Date dateOfBirth; public Person(final int iD, final Gender gender,final Date dateOfBirth) { ID = iD; this.gender = gender; this.dateOfBirth = dateOfBirth; } } Gender is enum : public enum Gender { Male, Female } In CSV file i will have data, for example: 1;Male;23-02-2001 2;Female;11-06-1989 3;Male;02-12-1999 Is in java any simple way to get all persons from csv file and return it as ArrayList<Person> persons ?

    Read the article

  • Personalized URL with pre-populated data

    - by AttackingHobo
    I think I am going to use Google spreadsheets and an embedded form. I see that it is possible to pre-populate the fields with URL parameters. So I think I just need a way to redirect with the correct data from a database when a user goes to their Personalized URL. I have no idea how to do the second part. Or if it is even the best way to do it. How do I set up Personalized URLS? How do I redirect from those URLS to the spreadsheets? Is this even the best method for pre-filled forms?

    Read the article

  • Interviews that include Algorithms and Data Structures

    - by EricFromSouthPark
    I want to start looking for jobs in great companies and I have four years of enterprise corporations development, three years with C#.NET and alomst one year with Ruby On Rails, JS, etc... But when I look up interview questions from Google, Amazon, Fog Creek, DropBox, etc... they are really targeted at students that are coming fresh out of college and still remember what was Dynamic Programming and Dijkstra algorithms ... but I don't! :( It has been a while for me ... If a I need a sort algorithm I would either Google it or there already is a library and method that does it for me. So what should I do? Do they realize that this guy is not coming from college and will ask more general questions about software architecture or nop! I should go back find my old Data structures book from the storage and read them? In that case wht books and language do you recommend to hone my skills?

    Read the article

  • SQL to XML open data and NIEM training video posted

    - by drrwebber
    Learn how to build a working XML query/response system with SQL database accessing and XML components from example NIEM schema and dictionary. Software development practitioners, business analysts and managers will find the materials accessible and valuable in showing the decision making processes that go into constructing a working XML exchange. The 22 minute video available online shows how to build a fully working ULEXS-SR exchange using a Vehicle license search example.  Also included are aspects of NIEM training for assembling an IEPD schema with data models. Materials are focused on practical implementers, after viewing the instruction material you can use the open source tools and apply to your own SQL to XML use cases and information exchange projects. All the SQL and XML code, editor tools, dictionary and instructions that accompany the tutorial video are also available for download so you can try everything yourself.  See http://www.youtube.com/user/TheCameditor to run the video. And the open source project web site (sponsored by Oracle) contains all the resources, downloads and supplemental materials. Enjoy.

    Read the article

  • C# and SQL data layer code generator

    I've created a simple yet efficient tool to help generate stored procedures and a C# data access layer from a table.  Instead of using an ORM, this uses standard ADO .NET (SqlConnection, SqlDataReader, etc).  Check it out at www.asteio.com.  It's saved me a ton of time and I'm hoping it does the same for you....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

  • Hitachi Data Systems definition of cloud

    - by llaszews
    1. Ability to rapidly provision and de-provision a service. (aka: provisioning) 2. A consumption model where users pay for what they use. (aka: chargeback and showback) 3. The agility to flexibly scale - 'flex up' or 'flex down' - the services without extensive pre-planning. (aka: elasticity) 4. Secure, direct connection to the cloud without having to recode applications (aka: internet-based) 5. Multi-tenancy capabilitites that segregate and protect the data. (as it says multi-tenancy) Happen to be I have been talking about 4 of the 5. Did not mention connection to internet as assumed this.

    Read the article

  • Design Pattern for Data Validation

    - by melodui
    What would be the best design pattern for this problem: I have an Object A. Object A can either be registered or deleted from the database depending on the user request. Data validation is performed before registration or deletion of the object. There are a set of rules to be checked before the object can be registered and another set of rules for deletion. Some of these rules are common for both operations. So far, I think the Chain of Responsibility design pattern fits the most but I'm having trouble implementing it.

    Read the article

  • How does Google store search trends in backend?

    - by Achshar
    Google trends shows what query has been searched how many times and some other properties of the said query. But how is this data stored in a database? Storing a new row for every search does not seem right. They also tell the query on a time graph, so they must have some way to look for individual searches made by users, but the number of queries they get every day, it does not feel right that they would store every search in a database row along with a time-stamp. This does not apply to just Google trends or Google in general but any other big site that gets awful number of queries and then has tools to see them in depth. I am not an expert on this but I am interested to know some high level structure of how things work behind the scenes.

    Read the article

  • SSRS Reports as a Data Source in Excel 2013

    DBAs are expected to know how to administer the technologies that are available with and peripheral to SQL Server. To properly administer them, it certainly helps to understand the technology from the point of view of the user. By using an existing SSRS report as a data feed for Excel, Rodney Landrum explains how these users can now take advantage of development efforts in new ways. The seven tools in the SQL DBA Bundle support your core SQL Server database administration tasks.Make backups a breeze! Enjoy trouble-free troubleshooting! Make the most of monitoring! Download a free trial now.

    Read the article

  • Using "MTNL 3G Jadoo" data card on Ubuntu

    - by amolbk
    I am trying to use "MTNL 3G Jadoo" data card (Teracom LW272) with Ubuntu 12.04. On connecting, it gets mounted as a drive containing the client installation .deb file. I opened the .deb file in Ubuntu Software Center and installed it. I searched for "MTNL" in Ubuntu search and found "MTNL 3G Modem" application. But it won't run. I found it is installed in /opt/MTNL-3GModem. I tried running it from the terminal as: sudo /opt/MTNL-3GModem/ModemClient, but no luck. Any idea how to get it working?

    Read the article

  • Will there be data loss for upgrade?

    - by Tim
    I am planning to upgrade from 8.10 to 10.04. But I am wondering if there will be data loss during the upgrade? For example: Will the application that I have installed on 8.10 still be there after upgrade? Will the settings of the applications such as the bookmarks for Firefox and for Google Chrome be preserved? Will all the personal files under my home directory be preserved? Any other things I need to know for the upgrade? Thanks and regards!

    Read the article

  • Settlers-like terrain representation

    - by Olle
    Remember this beauty? I'm playing it now on my old Amiga 1200. My question is: How do you think they represented the terrain, data structure wise? Obviously it's some kind of points, with a height. Or hexagons. And how did they decide which dots were buildable? EDIT: I could rephrase the question to say "how do I achieve this kind of terrain", but I would still only be interested in how to do it on a machine with 1 MB of RAM and a 7 Mhz processor, because this is the machine i currently developing games for. If that seems like a vague or meaningless question to you, that's alright, but I'm still curious if someone has any knowledge about this.

    Read the article

  • Transparent Data Encryption (TDE) in SQL Server

    There are several ways to implement encryption in SQL Server; Arshad Ali focuses on Transparent Data Encryption (TDE), which was introduced in SQL Server 2008 and is available in later releases. 24% of devs don’t use database source control – make sure you aren’t one of themVersion control is standard for application code, but databases haven’t caught up. So what steps can you take to put your SQL databases under version control? Why should you start doing it? Read more to find out…

    Read the article

  • Tuning Distributed Applications to Access Big Data

    Distributed applications are just that: distributed across one or more hardware platforms across the enterprise. The database administrator (DBA) has the unenviable task of monitoring these environments and configuring and tuning the database server to meet multiple needs. As multiple distributed applications now require access to a very large data store, what tuning options are available to help? Get your SQL Server database under version control now!Version control is standard for applications, but databases haven’t caught up. So how can you bring database development up to speed? Why should you start? Find out…

    Read the article

  • Lost my data after installing Ubuntu 12.10

    - by Robin92
    I've wanted to switch from Ubuntu 12.04 to 12.10 and downloaded proper ISO. During install I was asked if I wanted to reinstall Ubuntu. I used this option thinking that it will only delete all system files and install new ones. It turned out to be a mistake - it wipe my HDD from all partitions and created new one. I've lost all my data including personal and important photos from over 6 years. Is there a way I can recover entire partition (NTFS)? Moreover, I'm really angry with you Canonical that you could allowed that misleading desctiption to be included in a full release!

    Read the article

  • Week in Geek: US Govt E-card Scam Siphons Confidential Data Edition

    - by Asian Angel
    This week we learned how to “back up photos to Flickr, automate repetitive tasks, & normalize MP3 volume”, enable “stereo mix” in Windows 7 to record audio, create custom papercraft toys, read up on three alternatives to Apple’s flaky iOS alarm clock, decorated our desktops & app docks with Google icon packs, and more. Photo by alexschlegel. Random Geek Links It has been a busy week on the security & malware fronts and we have a roundup of the latest news to help keep you updated. Photo by TopTechWriter.US. US govt e-card scam hits confidential data A fake U.S. government Christmas e-card has managed to siphon off gigabytes of sensitive data from a number of law enforcement and military staff who work on cybersecurity matters, many of whom are involved in computer crime investigations. Security tool uncovers multiple bugs in every browser Michal Zalewski reports that he discovered the vulnerability in Internet Explorer a while ago using his cross_fuzz fuzzing tool and reported it to Microsoft in July 2010. Zalewski also used cross_fuzz to discover bugs in other browsers, which he also reported to the relevant organisations. Microsoft to fix Windows holes, but not ones in IE Microsoft said that it will release two security bulletins next week fixing three holes in Windows, but it is still investigating or working on fixing holes in Internet Explorer that have been reportedly exploited in attacks. Microsoft warns of Windows flaw affecting image rendering Microsoft has warned of a Windows vulnerability that could allow an attacker to take control of a computer if the user is logged on with administrative rights. Windows 7 Not Affected by Critical 0-Day in the Windows Graphics Rendering Engine While confirming that details on a Critical zero-day vulnerability have made their way into the wild, Microsoft noted that customers running the latest iteration of Windows client and server platforms are not exposed to any risks. Microsoft warns of Office-related malware Microsoft’s Malware Protection Center issued a warning this week that it has spotted malicious code on the Internet that can take advantage of a flaw in Word and infect computers after a user does nothing more than read an e-mail. *Refers to a flaw that was addressed in the November security patch releases. Make sure you have all of the latest security updates installed. Unpatched hole in ImgBurn disk burning application According to security specialist Secunia, a highly critical vulnerability in ImgBurn, a lightweight disk burning application, can be used to remotely compromise a user’s system. Hole in VLC Media Player Virtual Security Research (VSR) has identified a vulnerability in VLC Media Player. In versions up to and including 1.1.5 of the VLC Media Player. Flash Player sandbox can be bypassed Flash applications run locally can read local files and send them to an online server – something which the sandbox is supposed to prevent. Chinese auction site touts hacked iTunes accounts Tens of thousands of reportedly hacked iTunes accounts have been found on Chinese auction site Taobao, but the company claims it is unable to take action unless there are direct complaints. What happened in the recent Hotmail outage Mike Schackwitz explains the cause of the recent Hotmail outage. DOJ sends order to Twitter for Wikileaks-related account info The U.S. Justice Department has obtained a court order directing Twitter to turn over information about the accounts of activists with ties to Wikileaks, including an Icelandic politician, a legendary Dutch hacker, and a U.S. computer programmer. Google gets court to block Microsoft Interior Department e-mail win The U.S. Federal Claims Court has temporarily blocked Microsoft from proceeding with the $49.3 million, five-year DOI contract that it won this past November. Google Apps customers get email lockdown Companies and organisations using Google Apps are now able to restrict the email access of selected users. LibreOffice Is the Default Office Suite for Ubuntu 11.04 Matthias Klose has announced some details regarding the replacement of the old OpenOffice.org 3.2.1 packages with the new LibreOffice 3.3 ones, starting with the upcoming Ubuntu 11.04 (Natty Narwhal) Alpha 2 release. Sysadmin Geek Tips Photo by Filomena Scalise. How to Setup Software RAID for a Simple File Server on Ubuntu Do you need a file server that is cheap and easy to setup, “rock solid” reliable, and has Email Alerting? This tutorial shows you how to use Ubuntu, software RAID, and SaMBa to accomplish just that. How to Control the Order of Startup Programs in Windows While you can specify the applications you want to launch when Windows starts, the ability to control the order in which they start is not available. However, there are a couple of ways you can easily overcome this limitation and control the startup order of applications. Random TinyHacker Links Using Opera Unite to Send Large Files A tutorial on using Opera Unite to easily send huge files from your computer. WorkFlowy is a Useful To-do List Tool A cool to-do list tool that lets you integrate multiple tasks in one single list easily. Playing Flash Videos on iOS Devices Yes, you can play flash videos on jailbroken iPhones. Here’s a tutorial. Clear Safari History and Cookies On iPhone A tutorial on clearing your browser history on iPhone and other iOS devices. Monitor Your Internet Usage Here’s a cool, cross-platform tool to monitor your internet bandwidth. Super User Questions See what the community had to say on these popular questions from Super User this week. Why is my upload speed much less than my download speed? Where should I find drivers for my laptop if it didn’t come with a driver disk? OEM Office 2010 without media – how to reinstall? Is there a point to using theft tracking software like Prey on my laptop, if you have login security? Moving an “all-in-one” PC when turned on/off How-To Geek Weekly Article Recap Get caught up on your HTG reading with our hottest articles from this past week. How to Combine Rescue Disks to Create the Ultimate Windows Repair Disk How To Boot 10 Different Live CDs From 1 USB Flash Drive What is Camera Raw, and Why Would a Professional Prefer it to JPG? Did You Know Facebook Has Built-In Shortcut Keys? The How-To Geek Guide to Audio Editing: The Basics One Year Ago on How-To Geek Enjoy looking through our latest gathering of retro article goodness. Learning Windows 7: Create a Homegroup & Join a New Computer To It How To Disconnect a Machine from a Homegroup Use Remote Desktop To Access Other Computers On a Small Office or Home Network How To Share Files and Printers Between Windows 7 and Vista Allow Users To Run Only Specified Programs in Windows 7 The Geek Note That is all we have for you this week and we hope your first week back at work or school has gone very well now that the holidays are over. Know a great tip? Send it in to us at [email protected]. Photo by Pamela Machado. Latest Features How-To Geek ETC HTG Projects: How to Create Your Own Custom Papercraft Toy How to Combine Rescue Disks to Create the Ultimate Windows Repair Disk What is Camera Raw, and Why Would a Professional Prefer it to JPG? The How-To Geek Guide to Audio Editing: The Basics How To Boot 10 Different Live CDs From 1 USB Flash Drive The 20 Best How-To Geek Linux Articles of 2010 Arctic Theme for Windows 7 Gives Your Desktop an Icy Touch Install LibreOffice via PPA and Receive Auto-Updates in Ubuntu Creative Portraits Peek Inside the Guts of Modern Electronics Scenic Winter Lane Wallpaper to Create a Relaxing Mood Access Your Web Apps Directly Using the Context Menu in Chrome The Deep – Awesome Use of Metal Objects as Deep Sea Creatures [Video]

    Read the article

  • Data Guard - Snapshot Standby Database??

    - by Jian Zhang-Oracle
    ?? -------- ?????,??standby?????mount??????????REDO??,??standby????????????????????,???????read-only???open????,????ACTIVE DATA GUARD,????standby?????????(read-only)??(????????),????standby???????????(read-write)? ?????,?????????????Real Application Testing(RAT)??????????,?????????standby??????snapshot standby?????????,??snapshot standby??????????,???????????(read-write)??????snapshot standby??????????????,?????????,??????????,????????,?????????snapshot standby?????standby???,????????? ?? ---------  1.??standby?????? SQL> Alter system set db_recovery_file_dest_size=500M; System altered. SQL> Alter system set db_recovery_file_dest='/u01/app/oracle/snapshot_standby'; System altered. 2.??standby?????? SQL> alter database recover managed standby database cancel; Database altered. 3.??standby???snapshot standby,??open snapshot standby SQL> alter database convert to snapshot standby; Database altered. SQL> alter database open;    Database altered. ??snapshot standby??????SNAPSHOT STANDBY,open???READ WRITE: SQL> select DATABASE_ROLE,name,OPEN_MODE from v$database; DATABASE_ROLE    NAME      OPEN_MODE ---------------- --------- -------------------- SNAPSHOT STANDBY FSDB      READ WRITE 4.?snapshot standby???????????Real Application Testing(RAT)????????? 5.?????,??snapshot standby???physical standby,?????????? SQL> shutdown immediate; Database closed. Database dismounted. ORACLE instance shut down. SQL> startup mount; ORACLE instance started. Database mounted. SQL> ALTER DATABASE CONVERT TO PHYSICAL STANDBY; Database altered. SQL> shutdown immediate; ORA-01507: database not mounted ORACLE instance shut down. SQL> startup mount; ORACLE instance started. Database mounted. SQL>ALTER DATABASE RECOVER MANAGED STANDBY DATABASE DISCONNECT FROM SESSION; Database altered. 5.?????standby?,???????PHYSICAL STANDBY,open???MOUNTED SQL> select DATABASE_ROLE,name,OPEN_MODE from v$database; DATABASE_ROLE    NAME      OPEN_MODE ---------------- --------- -------------------- PHYSICAL STANDBY FSDB      MOUNTED 6.??????????????? ????: SQL> select ads.dest_id,max(sequence#) "Current Sequence",            max(log_sequence) "Last Archived"        from v$archived_log al, v$archive_dest ad, v$archive_dest_status ads        where ad.dest_id=al.dest_id        and al.dest_id=ads.dest_id        and al.resetlogs_change#=(select max(resetlogs_change#) from v$archived_log )        group by ads.dest_id;    DEST_ID Current Sequence Last Archived ---------- ---------------- -------------      1              361           361      2              361           362 --???? SQL>    select al.thrd "Thread", almax "Last Seq Received", lhmax "Last Seq Applied"       from (select thread# thrd, max(sequence#) almax           from v$archived_log           where resetlogs_change#=(select resetlogs_change# from v$database)           group by thread#) al,          (select thread# thrd, max(sequence#) lhmax           from v$log_history           where resetlogs_change#=(select resetlogs_change# from v$database)           group by thread#) lh      where al.thrd = lh.thrd;     Thread Last Seq Received Last Seq Applied ---------- ----------------- ----------------          1               361              361 ??????????,???blog,???????????,??"??:Data Guard - Snapshot Standby Database??" 

    Read the article

< Previous Page | 120 121 122 123 124 125 126 127 128 129 130 131  | Next Page >