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  • Oracle????????????????????????~????????????????????

    - by Yusuke.Yamamoto
    RDBMS ???????·????????????????????????????????????????????????????????????????????????? ????????Oracle ?????????????????????????????????? Oracle Database ???????????????????????????????? ????????????????????? ????Oracle???????????????????????????????????????????????????????????????????????????? ?????????????? Oracle Database ???????????????????????? ??????????????????????????????????2????????????? 1. ??????(Query Transformation) Query Transformation ???????SQL??????????????????SQL????????????????????? Query Transformation ???Predicate Transformation ? Common Sub-expression Elimination (CSE), Order-BY Elimination (OBYE), Outer Join Elimination (OJE), Simple View Meging (SVM), Predicate Move around (PM), Complex View Merging (CVM), Sub-query Unnesting (SU), Join Predicate Push Down (JPPD) ???? OR Expansion, Star Transformation (ST) ????????????? ···???????????????????????????????????????????????????? Predicate Transformation ?????? Transitive Predicate Generation ????????????? ?????????????SQL???deptno ? 10 ????????????????????????????? select e.ename, d.loc from emp e, dept d where e.deptno=d.deptno and e.deptno=10; ???????????????emp ??? deptno=10 ??????????????dept ??? d.deptno=10 ??????????????????? emp ?? deptno=10 ????????????????????emp ?? deptno=10 ??????10???????10? dept ????????????dept ??20???????????????????????10?*20?=200?????(??????????·?????????)? ??SQL?? Transitive Predicate Generation ??????SQL????????????????? select e.ename, d.location from emp e, dept d where e.deptno=d.deptno and e.deptno=10 and d.deptno=10; ^^^^^^^^^^^ ??????dept ?????? deptno=10 ??????????????????????????10?*1?=10(dept.deptno ?unique????)?1/20????????????????1/20????????????????10??????????30???????????????Query Transformation ???????????????????????????? ?:??????????? dept ?? 1-row table ??????dept ?? driving ???(Outer Table)??? emp ?? probe ???(Inner Table)????????????1?*10?=10 ????????????????????????????????????????????????????????1/20????????????? ?????? Query Transformation ??????SQL????????????????????????????????? Transformation ??????????????????????????????????? 2. ????·????(Access Path Analysis) Access Path Analysis ??Query Transformation ??SQL????????????(Access Path)?????????(Join Method)?????(Join Order)?????????? ??????????????????(FTS)?ROWID?????????????????????????????·?????(Nested Loop Join)???????(Hash Join)????/?????(Sort Merge Join)????????????????????????????????????????????????????????????????????????? Oracle Database ????????? Query Transformation ???? Logical Optimizer?Access Path Analysis ???? Physical Optimizer ????????? ??????????????????????????????????????????????????????????????????????????????????????????????????? ????????????????????????????????????????????????????? Oracle Database ????????????????????? "Oracle ????????" ?????????? Sustaining Engineering?? ?(??? ???) ???????????????? Sustaining Engineering ????????????????????????Oracle Database ???????????????????????? ?????????????????????Ruby????????????????????????? Oracle????????????????????????! Oracle????????????? Oracle????????????????????????

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  • Requirements Analysis in Game Development?

    - by Joey Green
    I'm a software engineering student with a focus on game development and am wondering how big of a part does requirement analysis play a part in game development? I'm asking because there is a class being offered and I could take it. It is all about requirements analysis. Here is a description: An in-depth study of current research and practice in requirements elicitation, requirements, analysis, requirements specification,requirements verification and validation, and requirements management. Would this type of knowledge be useful for an independent game developer?

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  • AdventureWorks 2014 Sample Databases Are Now Available

    - by aspiringgeek
      Where in the World is AdventureWorks? Recently, SQL Community feedback from twitter prompted me to look in vain for SQL Server 2014 versions of the AdventureWorks sample databases we’ve all grown to know & love. I searched Codeplex, then used the bing & even the google in an effort to locate them, yet all I could find were samples on different sites highlighting specific technologies, an incomplete collection inconsistent with the experience we users had learned to expect.  I began pinging internally & learned that an update to AdventureWorks wasn’t even on the road map.  Fortunately, SQL Marketing manager Luis Daniel Soto Maldonado (t) lent a sympathetic ear & got the update ball rolling; his direct report Darmodi Komo recently announced the release of the shiny new sample databases for OLTP, DW, Tabular, and Multidimensional models to supplement the extant In-Memory OLTP sample DB.  What Success Looks Like In my correspondence with the team, here’s how I defined success: 1. Sample AdventureWorks DBs hosted on Codeplex showcasing SQL Server 2014’s latest-&-greatest features, including:  In-Memory OLTP (aka Hekaton) Clustered Columnstore Online Operations Resource Governor IO 2. Where it makes sense to do so, consolidate the DBs (e.g., showcasing Columnstore likely involves a separate DW DB) 3. Documentation to support experimenting with these features As Microsoft Senior SDE Bonnie Feinberg (b) stated, “I think it would be great to see an AdventureWorks for SQL 2014.  It would be super helpful for third-party book authors and trainers.  It also provides a common way to share examples in blog posts and forum discussions, for example.”  Exactly.  We’ve established a rich & robust tradition of sample databases on Codeplex.  This is what our community & our customers expect.  The prompt response achieves what we all aim to do, i.e., manifests the Service Design Engineering mantra of “delighting the customer”.  Kudos to Luis’s team in SQL Server Marketing & Kevin Liu’s team in SQL Server Engineering for doing so. Download AdventureWorks 2014 Download your copies of SQL Server 2014 AdventureWorks sample databases here.

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  • Oracle Customer Experience Summit @ OpenWorld

    - by Christie Flanagan
    This first-ever Oracle Customer Experience Summit @ OpenWorld kicked off yesterday, bringing together established thought leaders and practitioners in customer experience. The first day saw noted marketing and customer experience thought leader, Seth Godin, take the stage to discuss how rapidly accelerating change and adoption are driving new behaviors and higher expectations in a massively disruptive transformation in which the customer now holds the power. His presentation gave us in-depth insight into this always-connected, always-sharing experience revolution we are witnessing.If you haven’t yet made it over to the Oracle Customer Experience Summit at The Westin St. Francis and the recently made over Oracle Square (aka Union Square), there’s still time today and tomorrow to network with industry peers and hear best practices from those who have steered their ventures through the disruptive trends of customer experience and have proven, successful strategies to share for driving strategic customer-centric initiatives. If you’re interested in learning how Oracle WebCenter helps businesses meet the demands of the customer experience revolution, be sure to check out these sessions at the Oracle Customer Experience Summit later today:Using the Online Customer Experience to Drive Engagement and Marketing Success Thursday, Oct 4, 4:15 PM - 5:15 PM - St. Francis - GeorgianMariam Tariq - Senior Director Product Management, Oracle Stephen Schleifer - Senior Principal Product Manager, Oracle Richard Backx - Business IT Architect/Consultant, KPN NL Netco CE Channels Online The online channel is a critical means of reaching and engaging customers. Online marketing efforts today must be targeted, interactive, and consistent to provide customers with a seamless experience. These efforts must include integrated management of Web, mobile, and social channels—supported by cross-channel customer data and campaigns—and integration with commerce to drive an engaging and differentiated online customer experience. Attend this session to learn how you can use the online channel to increase customer loyalty and drive the success of your marketing initiatives.Empowering Your Frontline Employees: Sales and Service Enterprise Collaboration Thursday, Oct 4, 5:30 PM - 6:30 PM - St. Francis - Elizabethan ABStephen Fioretti - VP, Product Management, Oracle Peter Doolan - Group Vice President, Sales Engineering, Oracle Andrew Kershaw - Sr Director Business Development, Oracle Marty Marcinczyk - VP Customer Experience Engineering, Comcast A focus on the employee experience is critical, because it can make or break your customers’ experiences, directly or indirectly. Engaged and empowered frontline employees become your best advocates and inspire your brand champions. This session explores proven approaches and tools, including social collaboration tools, that can help you empower and enable your frontline teams to improve customer and employee experiences.And before you go, you'll also want to explore the Innovation Tents in Oracle Square which feature leading-edge customer experience demonstrations; attend our customer journey mapping workshop; and learn at sessions focused on innovating differentiated experiences that drive cross-functional alignment.

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  • White Paper: Internet Explorer 8 and the Security Development Lifecycle

    Creating a functional and more secure Web browser is a tremendous challenge that all browser vendors face. Learn how Microsoft has confronted this challenge by proactively embedding security into every stage of the Windows Internet Explorer 8 software engineering process with the Security Development Lifecycle (SDL)....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.

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  • Importance of a 1st Class Degree

    - by Nipuna Silva
    I'm currently at the 3rd year following a degree in Software Engineering. I'm thinking of moving into a research field in the future (programming language design, AI etc.) My problems are, What is the advantage/importance of carrying a 1st Class Degree (Honors for Americans) in to the industry rather than with just simple pass. Is it really important to have a 1st Class? Is it the practical knowledge i have to give priority or the theoretical knowledge, or both?

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  • How does someone with a business degree become a software consultant?

    - by gambit14
    I'm a 4th year computer engineering student from a reputable university in Toronto and i'm curious as to how some of these software consulting positions with the large firms (Accenture, Deloitte, IBM, etc.) accept business grads as well as comp-sci and computer engineers? How does a business grad consult on software without having a background in software? Besides communication skills and other soft skills, what separates me from a business grad for these positions? Thanks.

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  • Harris Corporation Streamlines Manufacturing Assembly Operations with AutoVue

    - by Pam Petropoulos
    "AutoVue is a critical component to our business process; we can’t live without it.” – Charlie Davies, Principal ECAE Applications Engineer, Harris Corporation. Read how Harris Corporation, an international communications and information technology company in the high tech space, is using AutoVue to streamline their manufacturing assembly operations, enhance design reviews and improve communication of engineering changes. Click here to read the complete story.

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  • Title of person reporting to CEO responsible for strategy and projects [closed]

    - by user64134
    Case in point: What is the title of the person reporting directly to the CEO and/or CTO, responsible for the overall technical strategy and the overall responsibility for all projects and programs among multiple teams (being led by team leads) in a tech company I'm thinking that it is a mix of a staff and line position - making chief architect being too advisory and not matching the project/program part and VP of engineering a bit too high level?

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  • You're invited : Oracle Solaris Forum, June 19th, Petah Tikva

    - by Frederic Pariente
    The local ISV Engineering will be attending and speaking at the Oracle and ilOUG Solaris Forum next week in Israel. Come meet us there! This free event requires registration, thanks. YOU'RE INVITED Oracle Solaris Forum Date : Tuesday, June 19th, 2012 Time : 14:00 Location :  Dan Academic CenterPetach TikvaIsrael Agenda : Enterprise Manager OPS Center and Oracle Exalogic Elastic CloudSolaris 11NetworkingCustomer Case Study : BMCOpen Systems Curriculum See you there!

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  • How can a solo programmer become a good team player?

    - by Nick
    I've been programming (obsessively) since I was 12. I am fairly knowledgeable across the spectrum of languages out there, from assembly, to C++, to Javascript, to Haskell, Lisp, and Qi. But all of my projects have been by myself. I got my degree in chemical engineering, not CS or computer engineering, but for the first time this fall I'll be working on a large programming project with other people, and I have no clue how to prepare. I've been using Windows all of my life, but this project is going to be very unix-y, so I purchased a Mac recently in the hopes of familiarizing myself with the environment. I was fortunate to participate in a hackathon with some friends this past year -- both CS majors -- and excitingly enough, we won. But I realized as I worked with them that their workflow was very different from mine. They used Git for version control. I had never used it at the time, but I've since learned all that I can about it. They also used a lot of frameworks and libraries. I had to learn what Rails was pretty much overnight for the hackathon (on the other hand, they didn't know what lexical scoping or closures were). All of our code worked well, but they didn't understand mine, and I didn't understand theirs. I hear references to things that real programmers do on a daily basis -- unit testing, code reviews, but I only have the vaguest sense of what these are. I normally don't have many bugs in my little projects, so I have never needed a bug tracking system or tests for them. And the last thing is that it takes me a long time to understand other people's code. Variable naming conventions (that vary with each new language) are difficult (__mzkwpSomRidicAbbrev), and I find the loose coupling difficult. That's not to say I don't loosely couple things -- I think I'm quite good at it for my own work, but when I download something like the Linux kernel or the Chromium source code to look at it, I spend hours trying to figure out how all of these oddly named directories and files connect. It's a programming sin to reinvent the wheel, but I often find it's just quicker to write up the functionality myself than to spend hours dissecting some library. Obviously, people who do this for a living don't have these problems, and I'll need to get to that point myself. Question: What are some steps that I can take to begin "integrating" with everyone else? Thanks!

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  • Lenovo ThinkPad T400s Notebook Review

    Every so often, Lenovo leaves us reaching for superlatives. This time it's a 14.1-inch notebook that weighs less than four pounds, is under an inch thin, bristles with ingenious engineering and makes a $1,599 price seem downright reasonable.

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  • You're invited : Oracle Solaris Forum, Dec 18th, Petah Tikva

    - by Frederic Pariente
    The local ISV Engineering will be attending and speaking at the Oracle and ilOUG Solaris Forum next week in Israel. Come meet us there! This free event requires registration, thanks. YOU'RE INVITED Oracle Solaris Forum Date : Tuesday, December 18th, 2012 Time : 14:00 Location :  Dan Academic CenterPetach TikvaIsrael Agenda : New Features in Solaris 11.1SPARC T4 & T5Solaris 11 Serviceability See you there!

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  • How to become a good team player?

    - by Nick
    I've been programming (obsessively) since I was 12. I am fairly knowledgeable across the spectrum of languages out there, from assembly, to C++, to Javascript, to Haskell, Lisp, and Qi. But all of my projects have been by myself. I got my degree in chemical engineering, not CS or computer engineering, but for the first time this fall I'll be working on a large programming project with other people, and I have no clue how to prepare. I've been using Windows all of my life, but this project is going to be very unix-y, so I purchased a Mac recently in the hopes of familiarizing myself with the environment. I was fortunate to participate in a hackathon with some friends this past year -- both CS majors -- and excitingly enough, we won. But I realized as I worked with them that their workflow was very different from mine. They used Git for version control. I had never used it at the time, but I've since learned all that I can about it. They also used a lot of frameworks and libraries. I had to learn what Rails was pretty much overnight for the hackathon (on the other hand, they didn't know what lexical scoping or closures were). All of our code worked well, but they didn't understand mine, and I didn't understand theirs. I hear references to things that real programmers do on a daily basis -- unit testing, code reviews, but I only have the vaguest sense of what these are. I normally don't have many bugs in my little projects, so I have never needed a bug tracking system or tests for them. And the last thing is that it takes me a long time to understand other people's code. Variable naming conventions (that vary with each new language) are difficult (__mzkwpSomRidicAbbrev), and I find the loose coupling difficult. That's not to say I don't loosely couple things -- I think I'm quite good at it for my own work, but when I download something like the Linux kernel or the Chromium source code to look at it, I spend hours trying to figure out how all of these oddly named directories and files connect. It's a programming sin to reinvent the wheel, but I often find it's just quicker to write up the functionality myself than to spend hours dissecting some library. Obviously, people who do this for a living don't have these problems, and I'll need to get to that point myself. Question: What are some steps that I can take to begin "integrating" with everyone else? Thanks!

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  • links for 2011-03-11

    - by Bob Rhubart
    The Arup Nanda Blog: Good Engineering (tags: ping.fm) Spend Analytics on a Grand Scale (BI & Analytics Pulse) (tags: ping.fm) OSB and Coherence Integration (Mark Smith) (tags: ping.fm) Oracle Technology Network Architect Day: Denver (tags: ping.fm)

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  • Lifecycle Technology Delivers AutoVue Visualization Integration for SAP

    Lifecycle Technology is an Oracle development partner and has built a Connector for Oracle's AutoVue visualization solution and SAP. Their area of expertise lies in integrating AutoVue visualization and printing solutions with SAP business processes within Asset Lifecycle Management,Product Lifecycle Management,and Document Management Systems. Lifecycle visually enables a variety of SAP workflows and processes in manufacturing,plant maintenance,and production. Their solutions allow SAP enterprise customers to view technical or engineering documents in the appropriate business context and/or print them as required in their workflows, improving productivity and decision making.

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  • How employable am I as a programmer?

    - by dsimcha
    I'm currently a Ph.D. student in Biomedical Engineering with a concentration in computational biology and am starting to think about what I want to do after graduate school. I feel like I've accumulated a lot of programming skills while in grad school, but taken a very non-traditional path to learning all this stuff. I'm wondering whether I would have an easy time getting hired as a programmer and could fall back on that if I can't find a good job directly in my field, and if so whether I would qualify for a more prestigious position than "code monkey". Things I Have Going For Me Approximately 4 years of experience programming as part of my research. I believe I have a solid enough grasp of the fundamentals that I could pick up new languages and technologies pretty fast, and could demonstrate this in an interview. Good math and statistics skills. An extensive portfolio of open source work (and the knowledge that working on these projects implies): I wrote a statistics library in D, mostly from scratch. I wrote a parallelism library (parallel map, reduce, foreach, task parallelism, pipelining, etc.) that is currently in review for adoption by the D standard library. I wrote a 2D plotting library for D against the GTK Cairo backend. I currently use it for most of the figures I make for my research. I've contributed several major performance optimizations to the D garbage collector. (Most of these were low-hanging fruit, but it still shows my knowledge of low-level issues like memory management, pointers and bit twiddling.) I've contributed lots of miscellaneous bug fixes to the D standard library and could show the change logs to prove it. (This demonstrates my ability read other people's code.) Things I Have Going Against Me Most of my programming experience is in D and Python. I have very little to virtually no experience in the more established, "enterprise-y" languages like Java, C# and C++, though I have learned a decent amount about these languages from small, one-off projects and discussions about language design in the D community. In general I have absolutely no knowledge of "enterprise-y" technlogies. I've never used a framework before, possibly because most reusable code for scientific work and for D tends to call itself a "library" instead. I have virtually no formal computer science/software engineering training. Almost all of my knowledge comes from talking to programming geek friends, reading blogs, forums, StackOverflow, etc. I have zero professional experience with the official title of "developer", "software engineer", or something similar.

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  • i'm confused what skill shall i learn at my internship

    - by iyad al aqel
    i'm a software Engineering student having my internship this summer. the company asked me to choose one or two skills that i want to master and they will coordinate me and give me small tasks to medium projects to master it . Now , i'm confused shall i continue with web development and learn .NET given that i've been working with PHP for 2 years OR entering the mobile development world and learn Android. any advice guys ?

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  • A Great Idea I Never Had. Better Elevator Automation, no Buttons in Elevator.

    After my second year at engineering school (Cornell University), I spent the summer working in a dream job as an intern at the world famous Ford Design Center in Dearborn Michigan.  The group I worked in was an elite group of engineers whose responsibilities were to figure out better ways to build the cars that [...]...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.

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  • YouTube API Office Hours June 6, 2012

    YouTube API Office Hours June 6, 2012 This is a recording of the YouTube API Hangout on Air from Wednesday 6/6 at 10am PDT (UTC-7). JJ Behrens interviewed Neal Norwitz, a senior engineer at YouTube and well-known Python developer, about Google's engineering culture. We also had a surprise guest, Adrian Holovaty, co-benevolent dictator for life of the open-source Django web framework, who asked several questions about fine-grained timing control in the player APIs. From: GoogleDevelopers Views: 650 14 ratings Time: 39:07 More in Science & Technology

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  • Oracle OpenWorld - Events of Interest

    - by Larry Wake
    I mentioned the "Focus On Oracle Solaris" document the other day, which lists many of the Solaris-related events at Oracle OpenWorld this year; today I thought I'd highlight a few sessions you might find interesting. Monday, October 1st: 4:45 PM - Get Proactive: Best Practices for Maintaining and Upgrading Oracle Solaris (Moscone South 252) This session covers best practices for upgrading and patching and how to take advantage of unique technologies in Oracle Solaris 10 and 11. Learn how to get maximum value from My Oracle Support for both reactive and proactive requirements. Understand the benefits of secure remote access and how Oracle Support experts use collaborative shared sessions combined with Oracle Solaris technologies such as DTrace. Tuesday, October 2nd: 10:15 AM -  How to Increase Performance and Agility with an Open Data Center Fabric (Moscone South 200) If you haven't had a chance to hear about Xsigo Systems, this is a golden opportunity while you're at OpenWorld. Now part of Oracle, Xsigo's network virtualization technology is designed to increase both application performance and management efficiency, through a combination of software-defined network technology and the industry’s fastest fabric, allowing data center to converge Ethernet and Fibre Channel connectivity to a single fabric, to reduce complexity by 70 percent and CapEx by 50 percent while providing more I/O bandwidth to your applications. Wednesday, October 3rd: 10:15 AM - General Session: Oracle Solaris 11 Strategy, Engineering Insights, and Roadmap (Moscone South 103) Markus Flierl, head of Oracle Solaris Core Engineering, will outline the strategy and roadmap for Oracle Solaris,  how Oracle Solaris 11 is being deployed in cloud computing and the unique optimizations in Oracle Solaris 11 for the Oracle stack. The session also offers a sneak peek at the latest technology under development in Oracle Solaris, and what customers can expect to see in the coming updates. Plus, there are several Hands-On Labs: Monday, October 1st: 10:45 AM - 11:45 AM - Reduce Risk with Oracle Solaris Access Control to Restrain Users and Isolate Applications (Marriott Marquis - Salon 14/15) 4:45 PM - 5:45 PM - Managing Your Data with Built-In Oracle Solaris ZFS Data Services in Release 11  (Marriott Marquis - Salon 14/15) Tuesday, October 2nd: 1:15 PM - 2:15 PM - Virtualizing Your Oracle Solaris 11 Environment  (Marriott Marquis - Salon 10/11) Wednesday, October 3rd: 3:30 PM - 4:30 PM - Large-Scale Installation and Deployment of Oracle Solaris 11 (Marriott Marquis - Salon 14/15) There's plenty more--see the "Focus On Oracle Solaris" guide. See you next week in San Francisco!

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