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Articles indexed in February 2011

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• Mview??????????????~BI/DWH????????(3)

  - by Yusuke.Yamamoto

  Oracle Database ???BI???????????????????????????????????????????????????????????????????????????????????? ?????????????·???(Mview)???????????!????????????? ??????????(08:12)????????????? BI???????????? Enterprise Manager ??SQL??????????????????????? Enterprise Manager ??SQL????·??????????? ????????????????????·???????????? ?????·??????????? BI????????????(Oracle Database ??????·?????????????Mview???) Enterprise Manager ?????????????????? ??????????????Oracle GRID Center ??????????????? ????????????????????????? ????????DWH????????????????·???????? ???? ????????·???(Mview/????????)|??????????? Oracle Enterprise Manager|??????????? DWH(?????????)??·??

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• Dynamically changing DVT Graph at Runtime

  - by mona.rakibe(at)oracle.com

  I recently came across this requirement where the customer wanted to change the graph type at run-time based on some selection. After some internal discussions we realized this can be best achieved by using af:switcher to toggle between multiple graphs. In this blog I will be sharing the sample that I build to demonstrate this.[Note] : In the below sample, every-time user changes graph type there is a server trip, so please use this approach with performance implications in mind.This sample can be downloaded  from DynamicGraph.zipSet-up: Create a BAM data control using employees DO (sample)(Refer this entry)Steps:Create the View Create a new JSF page .From component palette drag and drop "Select One Radio" into this page Enter some Label and click "Finish"In Property Editor set the "AutoSubmit" property to trueNow drag and drop "Switcher" from components into this page.In the Structure pane select the af:switcher right click and surround with "PanelGroupLayout"In Property Editor set the "PartialTriggers"  property of PanelGroupLayout to the id of af:selectOneRadioAgain in the Structure pane select the af:switcher right click and select "Insert inside af:switcher->facet"Enter Facet name (ex: pie)Again in the Structure pane select the af:switcher right click and select "Insert inside af:switcher->facet" Enter  another Facet name (ex: bar)From "Data Controls" drag and drop "Employees->Query"  into the pie facet as "Graph->Pie" (Pie: Sales_Number and Slices: Salesperson)From "Data Controls" drag and drop "Employees->Query"  into the bar facet as "Graph->Bar" (Bars :Sales_Number and X-axis : Salesperson).Now wire the switcher to the af:selectOneRadio using their "facetName" and "value" property respectively.Now run the page, notice that graph renders as per the selection by user.

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• Passing Date Parameter to BAM

  - by mona.rakibe(at)oracle.com

  In the past I wrote a blog on passing ADF parameter to a BAM page. This sample can be further extended for parameter of any data type. Here is the  similar sample for Date type, the steps  to create application remain same.Sample : PassDate.zipSteps to RunCreate this Data Object on BAM server    ID(integer)    Date(datetime)     1             01/12/2010 4:22:34 AM     2             10/12/2009 5:22:20 PM     3             10/10/1999 5:22:10 PM     4             11/11/1980 4:23:10 PM Open adfc-config.xml and run InputValueProvide some date value and click on "Filter Records"Verify that the data is filtered in next page.   

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• HIMSS 2011 and New Press Release

  - by chris.kawalek(at)oracle.com

  We're here at HIMSS 2011 in booth 1651. If you're at the show, tomorrow (Wednesday) is the final day for the exhibits, so come over and see all of the Oracle demos displayed on Sun Ray Clients. It's extremely cool! Also, we did a press release here at the show about caregiver mobility with Wolf Medical Software. Have a read here. Wolf Medical Software did a press release themselves, too. You can read their press release here.

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• Oracle CRM For Public Sector, Commercial Business, Education

  - by michael.seback

  Chongqing Transport Commission Improves Management of Transport Projects The Chongqing Transport Commission is responsible for public passenger, road, and waterway transport in urban and rural areas of Chongqing. The commission administers the region's road and water industry; oversees the construction of transport infrastructure; and manages civil aviation, railroads, roads, waterways, ports, and wharves. "After studying the IT initiatives of other provincial transport commissions, we decided to use Siebel Public Sector to build our integrated transport service system. The Siebel software offers powerful functions that allow us to integrate information and improve the management of our road, rail, and waterway infrastructure projects." - Chen Xiaoming, Vice Director, Information Center, Chongqing Transport Commission. Read more here. Siemens Information Services Increases Productivity by 20% Siemens Information Services Pvt, Ltd. provides back-office account processing services to Siemens' vendors. The company works with Siemens' healthcare, energy, and industry divisions in Europe, the United States, and parts of the Asia-Pacific region. It approves financial services such as processing payroll, accounts data, purchase orders, invoices, and payments, and also creates service catalogs for customers and internal teams. "Oracle CRM ON Demand provides us with a complete view of each customer's data from the moment they log a request to the time we close it. This has eliminated manual requests, and improved the service we offer to our clients across the Asia-Pacific region." -Sunil Zutshi, General Manager, IT, Siemens Information Services Pvt, Ltd. Read more here. China Distance Education Holdings Improves Call Center Productivity by 24% China Distance Education Holdings Limited is a leading provider of online education. The organization offers 174 courses through 16 Web sites, including accounting, healthcare, law, and engineering. In 2010, 215,000 students were enrolled. "Online education is a fast growing sector in China. To maintain our competitiveness, we implemented Oracle Contact Center Anywhere to make it easier and faster for our call center staff to respond to student enquiries. As a result, their productivity increased by 24%." - Qin Songjiang, Chief Technology Officer, China Distance Education Holdings Limited. Read more here.

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• Retrieving SQL Server Fixed Database Roles for Disaster Recovery

  We ran into a case recently where we had the logins and users scripted out on my SQL Server instances, but we didn't have the fixed database roles for a critical database. As a result, our recovery efforts were only partially successful. We ended up trying to figure out what the database role memberships were for that database we recovered but we'd like not to be in that situation again. Is there an easy way to do this?

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• Data Everywhere - Step 3 in the Stairway to Reporting Services

  In this article, MVP Jessica Moss talks about data sources and how to connect them to your report. Learn how to add the reusable data sets and data sources for your reporting projects. Join SQL Backup’s 35,000+ customers to compress and strengthen your backups "SQL Backup will be a REAL boost to any DBA lucky enough to use it." Jonathan Allen. Download a free trial now.

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• Chapters Two, Three, and Four

  - by drsql

  I am trying to blog all of the chapters of the book, but due to deadlines and a lot of shuffling about, I never got around it for these three chapters, two of which I have added since I wrote the original table of contents. All of these contain mostly material from previous editions of the book, updated a good amount, but nothing tremendously different if you had memorized the material from the previous edition. As such, the pre-writing blog ritual wasn’t as necessary (for me at least) as it is going...(read more)

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• How can I most efficiently communicate my personal code of ethics, and its implications?

  - by blueberryfields

  There is a lot to the definition of a professional. There are many questions here asking how to identify components of what is essentially a professional programmer - how do you identify or communicate expertise, specialization, high quality work, excellent skills in relation to the profession. I am specifically looking for methods to communicate a specific component, and I quote from wikipedia: A high standard of professional ethics, behavior and work activities while carrying out one's profession (as an employee, self-employed person, career, enterprise, business, company, or partnership/associate/colleague, etc.). The professional owes a higher duty to a client, often a privilege of confidentiality, as well as a duty not to abandon the client just because he or she may not be able to pay or remunerate the professional. Often the professional is required to put the interest of the client ahead of his own interests. How can I most efficiently communicate my professionalism, in the spirit of the quote above, to current and potential clients and employers?

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• Should I keep investing into data structures and algorithms?

  - by 4bu3li

  These days, I'm investing heavily in data structures and algorithms and trying to solve some programming puzzles. I'm trying to code and solve with Java and Clojure. Am I wasting my time? should I invest more in technologies and frameworks that I already know in order to gain deeper knowledge (the ins and the outs) and be able to code with them more quickly? By studying data structures and algorithms, am I going to become a better programmer or those subjects are only important during college years?

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• How do I convince my boss to come here and see how "good" companies are doing?

  - by Vimvq1987

  My company is bad, I admit it. Inefficient project management, very low quality code, ... I won't get into it. It's partly based on our country's culture, but mostly because our boss is not looking at how good companies are actually going about producing good software/service. I want to bring my boss here, so he can see these things, to convince him to create a better development place for us. How can I do that? Thank you so much. Ps: If I fail to do this, you know, I'm thinking seriously of leaving

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• Is there a measure of code rot?

  - by DarenW

  I'm dealing, again, with a messy C++ application, tons of classes with confusing names, objects have pointers into each other and all over, longwinded Boost and STL data types, etc. (Pause and consider your favorite terror of messy legacy code. We probably have it.) The phrase "code rot" oft comes to mind when I work on this project. Is there a quantitative way to measure code rot? I wouldn't expect anything highly meaningful or scientific, since no other measure of code productivity or quality is so fine. I'm not looking for a mere opposite of measures of code quality, but specifically a measure of how many bad things happened after a series of maintenance software "engineers" have had turns hacking at the code. A general measure applying to any language, or many languages, would be great. If there's no such thing, at least for C++, which is a better than average language for creating messes. Maybe something involving a measure of topology of how objects connect during runtime, a count of chunks of commented out code, how mane files a typical variable's usage is scattered over, I don't know... but surely now, a decade into the 21st Century, someone has attempted to define some sort of rot measure. It would be especially interesting to automate a series of svn checkouts, measure the "rottenosity" of each, and plot the decay over time.

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• Do professional software developers still dream of creating industry/world-changing apps?

  - by Andrew Heath

  I'm a hobby programmer. The absence of real world deadlines, customer feedback, or performance reviews leaves me free to daydream about having and implementing The Next Great Idea That Changes the World. Of course I'm aware I probably have a better chance of winning the lottery, but it's fun to imagine knocking out some fully-homebrewed app that destroys the status quo. I know many professional programmers have side projects, some for profit others not. I was wondering on the way to work this morning (non-IT boring work) if having to code for your food tended to dampen the dreaming? Does greater experience leave you jaded and more focused on the projects at hand? Not trying to be a downer, just interested in the mindset of the real software professional :-)

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• 25 years old and considering a career change...possible? practical?

  - by mq330

  Hi all, I'm new to this site and new to programming as well. I've spent some time going through an intro cs book that uses python as the language of choice. I find the exercises interesting and engaging and I generally have had a favorable experience programming so far. I've gone through some of the basics with python like writing simple programs, basics of GUIs, manipulating strings, lists, defining functions, etc. And I've always loved technology. Although I've never done any real hardcore programming yet, I was inclined to building websites from a very young age but I never really developed my skills. Now, the thing is I'm 25, I have my bacholors in environmental studies and two masters degrees in urban planning and landscape architecture respectively. I know, it would be quite a departure to pursue a career in programming at this point. Currently, I'm working as a geographic information systems intern. I've taken some GIS classes and have a lot of experience with making maps, doing spatial analysis etc. So what I'm thinking is maybe I can learn some solid programming skills and apply these skills in the field of GIS. From what I've seen, .net languages are the norm in this arena. Could you perhaps provide some guidance to me in terms of what languages I should focus on or courses I should take at this point? What about for building web mapping applications? Also, I was thinking about getting a certificate in programming from a university extension program. Do you think it would be worth it? And furthermore, do you think potential employers would be interested in hiring someone like me (once I get a couple of languages down pretty well) as an intern or in an entry level position? I'll be living in the bay area so I feel that there should be decent opportunities even though I don't have a b.s. in cs.

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• How to bill a client for frequently-interrupted time

  - by Greg

  I find that when I'm working on hourly-billable projects (in particular, those that are research/design/architecture-oriented as opposed to straight coding) that I'm easily distracted by any number of things (email, grab a drink (loss of focus, but nature happens), link off the webpage I was reading, wandering mind (easy when the job calls for a lot of thinking), etc.) This results in very fragmented time, far too incremental IMO to accurately track with a timeclock, and some time very gray. I frequently end up billing for only some fraction of the elapsed time I spent in order to feel fair, but sometimes it takes a really long time to put in an 8-hour day. By contrast, when I've worked for salary I've not worried about whether I'm actively working at any given minute, I just get the job done, and I've never had anything but stellar reviews/feedback from past salaried employers, so I think I get the job done well. I personally believe in an 80/20 cycle: I get 80% of my work done during an inspired 20% of my time. But I have to screw around the other 80% of the time in order to get that first 20%. So the question: what billing/time-tracking policy can I adopt in order to be fair to my hourly customers without having to write off my own less-productive 80% that a salaried employer is willing to overlook in light of the complete package? Note: This question is not about how to be more productive or focused. It's about how to work around whatever salient limitations that I have in a way that's both fair to me and to my customers. Update: A little clarification (to pre-emptively stop some righteous indignation): I currently have a half dozen different project/client groups. It's not a great situation and I'm working at reducing it down to two, but that's my current reality. It's very easy to get off on a thread related to a different project than the one I'm clocking, and I'm not always conscious of it at the time. [I did not intend the question to mean that I was off playing games or making personal calls, etc., and have adjusted wording above to be clearer. Most of the time. I am only human, and sometimes the mind does force you to take a break! :-)]

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• anyone familiar with these analytic questions?

  - by Moon

  So...my recruiter just called me to confirm my interview on Thurs. He also mentioned that I am going to be asked to answer for two analytic questions. He gave me a little bit about those questions. There are eight balls. One of them is defective. There are three incandescent light bulbs inside a room, but switches are placed outside. These are all he said. I think that these are not completed question. Anyone knows what questions these are?? Does my question belong to programmer.stackexchange.com? I thought it would because it is related to interview questions.

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• What languages do you support when localizing?

  - by Javoid

  I recently converted an iphone app to support different languages, and was wondering which ones I should include, and which ones aren't worth the trouble. What I mean by that is best illustrated by an example. In Ireland, the Irish language is spoken by very few of the people there. It could be considered a dying language. Almost everybody speaks English (if not everybody). So in this example, I don't think it's worth the trouble to support. In addition, the number of people using modern technology may be limited as well. For example, most people in Cambodia would not be likely to purchase software, and therefore the benefits of localization are reduced. What languages do you support when localizing?

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• Legitimate use of the Windows "Documents" folder in programs.

  - by romkyns

  Anyone who likes their Documents folder to contain only things they place there knows that the standard Documents folder is completely unsuitable for this task. Every program seems to want to put its settings, data, or something equally irrelevant into the Documents folder, despite the fact that there are folders specifically for this job1. So that this doesn't sound empty, take my personal "Documents" folder as an example. I don't ever use it, in that I never, under any circumstances, save anything into this folder myself. And yet, it contains 46 folders and 3 files at the top level, for a total of 800 files in 500 folders. That's 190 MB of "documents" I didn't create. Obviously any actual documents would immediately get lost in this mess. My question is: can anything be done to improve the situation sufficiently to make "Documents" useful again, say over the next 5 years? Can programmers be somehow educated en-masse not to use it as a dumping ground? Could the OS start reporting some "fake" location hidden under AppData through the existing APIs, while only allowing Explorer and the various Open/Save dialogs to know where the "real" Documents folder resides? Or are any attempts completely futile or even unnecessary? 1For the record, here's a quick summary of the various standard directories that should be used instead of "Documents": RoamingAppData for user-specific data and settings. This is the directory to use for user-specific non-temporary data. Anything placed here will be available on any machine that a given user logs on to in networks where this is configured. Do not place large files here though, because they slow down login/logout in such environments. LocalAppData for user-and-machine-specific data and settings. This data differs for every user and every machine. This is also where very large user-specific data should be placed. ProgramData for machine-specific data and settings. These are the same regardless of which user is logged on, and will not roam to other machines in a network. GetTempPath for all files that may be wiped without loss of data when not in use. This is also the place for things like caches, because like temporary data, a cache does not need to be backed up. Place your huge cache here and you'll save your user some backup trouble. "Documents" itself should only ever be used if the user specified it manually by entering a path or selecting it in a Save dialog. That is the only time it is ever appropriate to save stuff in "Documents".

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• Quit my job (for a new job). Old job wants me to be available for contracting. Steps to take?

  - by Zak

  The company I am leaving has asked that I make myself available to answer questions and/or debug programs occasionally should the need arise. I'm not opposed to this. After searching google for some king of standard contract for this sort of thing, I didn't see any. Is there a standard contract for this sort of thing that you use? Are there any other steps I should take to ensure this kind of arrangement works smoothly?

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• How do you stay productive when dealing with extremely badly written code?

  - by gaearon

  I don't have much experience in working in software industry, being self-taught and having participated in open source before deciding to take a job. Now that I work for money, I also have to deal with some unpleasant stuff, which is normal of course. Recently I was assigned to add logging to a large SharePoint project which is written by some programmer who obviously was learning to code on the job. After 2 years of collaboration, the client switched to our company, but the damage was done, and now somehow I need to maintain this code. Not that the code was too hard to read. Despite problems - each project has one class with several copy-pasted methods, enormous if nestings, Systems Hungarian, undisposed connections — it's still readable. However, I found myself absolutely unproductive despite working on something as simple as adding logging. Basically, I just need to go through the code step by step and add some trace calls. However, the idiocy of the code is so annoying that I get tired within 10 minutes of starting. In the beginning, I used to add using constructs, reduce nesting by reversing if's, rename the variables to readable names—but the project is large, and eventually I gave up. I know this is not the task I should be doing, but at least reducing the mess gave me some kind of psychological reward so I could keep going. Now the trick stopped working, and I still have 60% of my work to do. I started having headaches after work, and I no longer get the feeling of satisfaction I used to get - which would usually allow me to code for 10 hours straight and still feel fresh. This is not just one big rant, for I really do have an actual question: Is there a way to stay productive and not to fight the windmills? Is there some kind of psychological trick to stay focused on the task, instead of thinking “How stupid is that?” each time I see another clever trick by the previous programmer? The problem with adding logging is that I actually have to understand what the code does, and doing so hurts my brain in an unpleasant fashion.

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• Help me choose an Open-Source license

  - by Spartan-117A

  So I've done lots of open-source work. I have released many projects, most of which have fallen under GPL, LGPL, or BSD licensing. Now I have a new project (an implementation library), and I can't find a license that meets my needs (although I believe one may exist, hence this question). This is the list of things I'm looking for in the license. Appropriate credit given for ALL usage or derivative works. No warranty expressed or implied. The library may be freely used in ANY other open-source/free-software product (regardless of license, GPL, BSD, EPL, etc). The library may be used in closed-source/commercial products ONLY WITH WRITTEN PERMISSION. GPL - Useless to me, obviously, as it completely precludes any and all closed-source use, violating requirement (4). BSD/LGPL/MIT - Won't work, because they wouldn't require closed-source developers to get my permission, violating requirement (4). If it wasn't for that, BSD (FreeBSD in particular) would look like a good choice here. EPL/MPL - Won't work either, as the code couldn't be combined with GPL-code, therefore violating requirement (3). Also I'm pretty sure they allow commercial works without asking permission, so they don't meet (4) either. Dual-licensing is an option, but in that case, what combination would hold to all four requirements? Basically, I want BSD minus the commercial use, plus an option to use in commercial/closed-source as long as the developer has my written permission. EDIT: At the moment, thinking something like multiple-licensing under GPL/LGPL plus something else for commercial?

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• Video crashes with 10.10

  - by John Mahon

  I have installed both the 64bit and 32 bit versions of 10.10 on my Compaq Presario PC. I first installed the 64 bit version of the OS.The video often crashed when switching user. It also went haywire occasionally when I visited some web-sites. I read that there may be some problems with the 64 bit OS. So I installed the 32 bit version on another disk. This version seemed even less well behaved. HP's model number for the computer is SR1838NX. The hardware is listed at http://bizsupport1.austin.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c00628274&lang=en&cc=us&contentType=SupportFAQ&prodSeriesId=1841793&prodTypeId=12454&printver=true#A0 I think the important info is that the chip set is "ATI Radeon Xpress 200" and the processor is "Athlon 64 (S) 3700+ 2.2 GHz" Has anyone else had video problems with similar machines? Is there a work around or an update? I have had previous versions of Ubuntu working on this machine and other flavors of Linux as well. Thanks in advance. John

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• Cannot find install-sh, install.sh, or shtool in ac-aux

  - by Micah

  This is my first time trying to compile and install anything on a linux machine. I got the latest version of https://github.com/processone/exmpp via git and read the instructions which state: 2. Build and install Exmpp uses the Autotools. Therefore the process is quite common: $ ./configure $ make $ sudo make install after type ./configure I get the error Cannot find install-sh, install.sh, or shtool in ac-aux Google was of little to no help. Not sure at all what I'm supposed to do. Any help would be much appreciated

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• How to apply disk quota in ubuntu server on a VPS?

  - by Pedram

  I have a VPS with ubuntu server 10.04 installed on it.Now I want to have some shell users with limited home folder size. It seems quota is the best way to do this, but all tutorials require editing /etc/fstab and add usrquota or grpquota to /home partition options. As my /etc/fstab looks like this: proc /proc proc defaults 0 0 none /dev/pts devpts rw 0 0 how can I apply quota?

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• How can you print a text file via gedit from the command line?

  - by dan

  I'd like to use gedit or some similar program just as a page formatter and pipe some text through it and onto the printer. | lpr just doesn't cut it in the presentation department. The printed output is subpar, even if I try to tinker with the margin and font size options. But I like the way text looks like when printed from gedit. Is there a way to have the best of both worlds and use a command line pipeline to print a text file with gedit-quality formatting?

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