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  • Recommended book for Sql Server query optimisation

    - by Patrick Honorez
    Even if I have made a certification exam on Sql Server Design and implementation , I have no clue about how to trace/debug/optimise performance in Sql Sever. Now the database I built is really business critical, and getting big, so it is time for me to dig into optimisation, specially regarding when/where to add indexes. Can you recommend a good book on this subject ? (smaller is better :) Just in case: I am using Sql Server 2008. Thanks

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  • What's wrong with foreign keys?

    - by kronoz
    I remember hearing Joel mention in the podcast that he'd barely ever used a foreign key (if I remember correctly). However, to me they seem pretty vital to avoid duplication and subsequent data integrity problems throughout your database. Do people have some solid reasons as to why (to avoid a discussion in lines with SO principals)? Edit: "I've yet to have a reason to create a foreign key, so this might be my first reason to actually set up one."

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  • Object Oriented vs Relational Databases

    - by Dan
    Objects oriented databases seem like a really cool idea to me, no need to worry about mapping your domain model to your database model, no messing around with sql or ORM tools. The way I understand it, relational DBs offer some advantages when there is massive amounts of data, and searching an indexing need to be done. To my mind 99% of websites are not massive, and enterprise issues never need to be thought about, so why arn't OO DBs more widely used?

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  • How do I update the members of a MySQL SET Type?

    - by MachinationX
    I have a table of values, with one of the columns being of type SET. If it currently has the members ('a', 'b', 'c', 'd'), how do I add 'e' to the possible values? I realize that using a SET type is a little strange, and I'm unclear why one would use it instead of a foreign key to another table with the values of the set, but I didn't design the database in question, and can't change it that much. Thanks for your help!

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  • methods of joining 2 tables without using JOIN or SELECT more than one distinct table in the query

    - by GB_J
    Is there a way of joining results from 2 tables without using JOIN or SELECT from more than one table? The reason being the database im working with requires queries that only contain SELECT, FROM, and WHERE clauses containing only one distinct table. I do, however, need information from other tables for the project i'm working on. More info: the querier returns the query results in a .csv format, is there something we can manipulate there?

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  • Oracle/SQL table attribute question

    - by UnceRawr
    I have been given a context schema for a database i need to make for my coursework but some of the attributes (column names) contain letters in brackets at the end of them such as: *x_Number (Adm) *x_Number (A) *x_Number (P) The problem is i have no idea what these letters mean! Can anyone help?

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  • Q&A: Oracle's Paul Needham on How to Defend Against Insider Attacks

    - by Troy Kitch
    Source: Database Insider Newsletter: The threat from insider attacks continues to grow. In fact, just since January 1, 2014, insider breaches have been reported by a major consumer bank, a major healthcare organization, and a range of state and local agencies, according to the Privacy Rights Clearinghouse.  We asked Paul Needham, Oracle senior director, product management, to shed light on the nature of these pernicious risks—and how organizations can best defend themselves against the threat from insider risks. Q. First, can you please define the term "insider" in this context? A. According to the CERT Insider Threat Center, a malicious insider is a current or former employee, contractor, or business partner who "has or had authorized access to an organization's network, system, or data and intentionally exceeded or misused that access in a manner that negatively affected the confidentiality, integrity, or availability of the organization's information or information systems."  Q. What has changed with regard to insider risks? A. We are actually seeing the risk of privileged insiders growing. In the latest Independent Oracle Users Group Data Security Survey, the number of organizations that had not taken steps to prevent privileged user access to sensitive information had grown from 37 percent to 42 percent. Additionally, 63 percent of respondents say that insider attacks represent a medium-to-high risk—higher than any other category except human error (by an insider, I might add). Q. What are the dangers of this type of risk? A. Insiders tend to have special insight and access into the kinds of data that are especially sensitive. Breaches can result in long-term legal issues and financial penalties. They can also damage an organization's brand in a way that directly impacts its bottom line. Finally, there is the potential loss of intellectual property, which can have serious long-term consequences because of the loss of market advantage.  Q. How can organizations protect themselves against abuse of privileged access? A. Every organization has privileged users and that will always be the case. The questions are how much access should those users have to application data stored in the database, and how can that default access be controlled? Oracle Database Vault (See image) was designed specifically for this purpose and helps protect application data against unauthorized access.  Oracle Database Vault can be used to block default privileged user access from inside the database, as well as increase security controls on the application itself. Attacks can and do come from inside the organization, and they are just as likely to come from outside as attempts to exploit a privileged account.  Using Oracle Database Vault protection, boundaries can be placed around database schemas, objects, and roles, preventing privileged account access from being exploited by hackers and insiders.  A new Oracle Database Vault capability called privilege analysis identifies privileges and roles used at runtime, which can then be audited or revoked by the security administrators to reduce the attack surface and increase the security of applications overall.  For a more comprehensive look at controlling data access and restricting privileged data in Oracle Database, download Needham's new e-book, Securing Oracle Database 12c: A Technical Primer. 

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  • Is it a good idea to cache data from web services into a database?

    - by Thierry Lam
    Let's assume that Stackoverflow offers web services where you can retrieve all the questions asked by a specific user. A request to get all question from user A can result in the following json output: { { "question": "What is rest?", "date_created": "20/02/2010", "votes": 1, }, { "question": "Which database to use for ...", "date_created": "20/07/2009", "votes": 5, }, } If I want to manipulate and present the data in any ways that I want, will it be wise to dump it in a local database? At some point, I will also want to retrieve all answers for each question and store them in a local database. The workflow that I'm thinking is: User logs in. Web services retrieve all questions asked by the logged in user, dump them in a local database. User wants all answers for a specific question, another web service does the retrieval and dump them in a local database. After user logs out, delete from the local database all questions and answers from that user.

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  • "[INS-30131] Initial setup required for the execution of installer validations failed." Encountering this error while installing Oracle database 12c. [on hold]

    - by user132992
    I am trying to install Oracle 12c database on my machine running Fedora 20. And I am encountering this problem: "[INS-30131] Initial setup required for the execution of installer validations failed." And when we see the details then it is like this: Cause - Failed to access the temporary location. Action - Ensure that the current user has required permissions to access the temporary location. Additional Information: - Framework setup check failed on all the nodes - Cause: Cause Of Problem Not Available   - Action: User Action Not Available Summary of the failed nodes fedora - Version of exectask could not be retrieved from node "fedora"   - Cause: Cause Of Problem Not Available   - Action: User Action Not Available To eliminate this error I have tried various measures including the change of permission of the tmp folder and restarting the computer but none is working. Plz someone help me out of this. Any kind of help will be appreciated...

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  • How do you find local fellow programmers?

    - by Pepijn
    I'm a self-tought programmer living in a small town. Except for the occasional meetups at the other end of the country, I rarely talk face-to-face with other programmers. I'm well aware of the merits of pair programming, feedback, discussion with other programmers and all... What do you do to get in contact with other local programmers? p.s. If you live near Loenen (gld), Netherlands, I'd like to have contact ;)

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  • Listen to Local FM Radio in Windows 7 Media Center

    - by DigitalGeekery
    If you have a supported tuner card and connected FM antenna, you can listen to your favorite local over-the-air FM stations in Windows 7 Media Center. Before the FM radio option will be available in Windows Media Center, you’ll need to have a TV or Radio tuner card installed and configured. If you have a TV tuner card installed, you may already have a Radio tuner as well. Many TV tuner cards also have built in FM tuners. Open Windows Media Center, scroll the “Music” and over to “Radio.” Click on “FM Radio.”   The radio will turn on and you’ll see the current station number listed in the white box. Just below are standard “Seek” and “Tune” buttons, as well as “Preset” options. Tuning works just like a typical FM radio. Click on the (-) or (+) buttons to “Tune” or “Seek” up and down the dial. If you already know the frequency of the station, enter the numbers using the numeric keypad on the remote control or keyboard. To save the current station you’re listening to as a preset, click on the “Save as Preset” button. Type in a custom name for your preset station and click “Save.”   Once you set your presets, they will also be available on the main FM Radio screen. The transport controls at the bottom of the screen also allow you to control Volume, Pause, Play, Skip back, and Skip forward. Fast Forward and Rewind, however, are not supported.   This is a nice option if you’d like to listen to your local FM favorites on your computer, especially if those stations aren’t available online. If you don’t have an FM tuner and want to listen to thousands of online radio streams, check out our article on RadioTime in WMC. Similar Articles Productive Geek Tips Listen to Over 100,000 Radio Stations in Windows Media CenterListen To XM Radio with Windows Media Center in Windows 7Using Netflix Watchnow in Windows Vista Media Center (Gmedia)Schedule Updates for Windows Media CenterIntegrate Hulu Desktop and Windows Media Center in Windows 7 TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips Revo Uninstaller Pro Registry Mechanic 9 for Windows PC Tools Internet Security Suite 2010 PCmover Professional The Growth of Citibank Quickly Switch between Tabs in IE Windows Media Player 12: Tweak Video & Sound with Playback Enhancements Own a cell phone, or does a cell phone own you? Make your Joomla & Drupal Sites Mobile with OSMOBI Integrate Twitter and Delicious and Make Life Easier

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  • Rotate/Translate object in local space

    - by Mathias Hölzl
    I am just trying to create a movementcontroller class for game entities. These class should transform the entity affected by the mouse and keyboard input. I am able to calculate the changed rotation and the new globalPosition. Then I multiply: newGlobalMatrix = changedRotationMatrix * oldGlobalMatrix; newGlobalMatrix = MatrixSetPosition(newPosition); The problem is that the object rotates around the global axis and not around the local axis. I use XNAMath for the matrix calculation.

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  • Small Business SEO - Reach Out to the Local Communities

    Smaller businesses require an entirely different approach to flourish than bigger enterprises. Small business Search engine optimization is the most affordable means to reach the targeted community and potential customers. It is managed in such a way that the business reaches out to local communities where it is expected to get the most number of potential clients.

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  • Mapping local folder with an Ubuntu One folder

    - by Titus
    TrendMicro's Safesync has a nice feature, you can map your local folder to a folder in the cloud with a different name, e.g: PC1: C:\my_documents\pictures ===> office_pictures c:\my_documents\docs ===> office_docs PC2: C:\my_documents\pictures ===> private_pictures c:\my_documents\docs ===> private_docs Would this be possible with UbuntuOne? The reason is that I have multiple computers, and I don't want all my "my_documents" folders to sync across work and personal life...

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  • How to exclude copy local referenced assemblies from a VSIX

    - by Daniel Cazzulino
    When you add library references to project that are not reference assemblies or installed in the GAC, Visual Studio defaults to setting Copy Local to True: If, however, those dependencies are distributed by some other means (i.e. another extension, or are part of VS private assemblies, or whatever) and you want to avoid including them in your VSIX, you can add the following property to the project file: &lt;PropertyGroup&gt; ... &lt;IncludeCopyLocalReferencesInVSIXContainer&gt;false&lt;/IncludeCopyLocalReferencesInVSIXContainer&gt;Read full article

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  • Storing deb packages on local media

    - by Saeid87
    Is there a way to store deb packages (all or a specific version of package) on a local media (dvd, usb etc...) so later I would be able to install those packages on a PC which does not have Internet connection? For example, these are the packages that I want to install on a PC which doesn't have Internet connection: # TinyOS MSP430 GCC Compiler Repository # Version 4.6.3 deb http://tinyprod.net/repos/debian squeeze main deb http://tinyprod.net/repos/debian msp430-46 main # TinyOS version 2.1.2 deb http://tinyos.stanford.edu/tinyos/dists/ubuntu lucid main

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  • Reach Local Proxy Page - Duplicate content?

    - by Simon Bennett
    We have a client who has instructed Reach Local to manage their paid SEO work etc. RL have created a proxy version of the page at http://example-px.rtrk.co.uk which mirrors the existing site completely. Would I be correct in assuming that this would count as duplicate content and one or both of the sites would be penalized because of this? And would the addition of a rel="canonical" meta-tag on the proxy site assist with this? Many thanks in advance.

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  • Mapping local folder with an UbuntuOne folder

    - by Titus
    TrendMicro's Safesync has a nice feature, you can map your local folder to a folder in the cloud with a different name, e.g: PC1: C:\my_documents\pictures === office_pictures c:\my_documents\docs === office_docs PC2: C:\my_documents\pictures === private_pictures c:\my_documents\docs === private_docs Would this be possible with UbuntuOne? The reason is that I have multiple computers, and I don't want all my "my_documents" folders to sync across work and personal life... Thanks for a reply or ideas for workarounds! ;-) Titus

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  • Find a Local SEO Expert

    There are so many Local SEO companies who are willing to help you on your website problems such as Google rankings and gaining more clicks and visitors for your website. A lot of search engine optimization companies do offer their services to small business companies in order to lend them a helping hand in increasing their rankings in Google and other search engine websites.

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  • Where to buy a domain for my local server [closed]

    - by Pradyut Bhattacharya
    I have made a website and hosted in my local computer using a static ip Where can i buy a domain name such as www.something.com such that it can redirect to my static IP. So that if i m using a page like a http://localhost/index.jsp it can be accessed by http://www.something.com/index.jsp Does it matter if i run the server locally or should I buy a managed web hosting server from a big company if the traffic is low on my site?

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