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• ArchBeat Link-o-Rama for 10-17-2012

  - by Bob Rhubart

  This is your brain on IT architecture. Oracle Technology Network Architect Day in Los Angeles, Oct 2 Stuff your cranium with architecture by attending Oracle Technology Network Architect Day in Los Angeles, October 25, 2012, at the Sofitel Los Angeles, 8555 Beverly Boulevard, Los Angeles, CA 90048. Technical sessions, panel Q&A, and peer roundtables—plus a free lunch. Register now. Panel: On the Impact of Software | InfoQ Les Hatton (Oakwood Computing Associates), Clive King (Oracle), Paul Good (Shell), Mike Andrews (Microsoft) and Michiel van Genuchten (moderator) discuss the impact of software engineering on our lives in this panel discussion recorded at the Computer Society Software Experts Summit 2012. OTN APAC Tour 2012: Bangkok, Thailand - Oct 22, 2012 Mike Dietrich shares information on the upcoming OTN APAC Tour stop in Bangkok. Registration is open. Consolidating Oracle E-Business Suite R12 on Oracle's SPARC SuperCluster | Giri Mandalika Giri Mandalika shares an overview of a new Optimized Solution for Oracle E-Business Suite (EBS) R12 12.1.3.. As Giri explains, "This solution was centered around the engineered system, SPARC SuperCluster T4-4." The Oldest Big Data Problem: Parsing Human Language | The Data Warehouse Insider Dan McClary offers up a new whitepaper "which details the use of Digital Reasoning Systems' Synthesys software on Oracle Big Data Appliance." Mobile Apps for EBS | Capgemini Oracle Blog Capgemini solution architect Satish Iyer breifly describes how Oracle ADF and Oracle SOA Suite can be used to fill the gap in mobile applications for Oracle EBS. Ease the Chaos with Automated Patching: Enterprise Manager Cloud Control 12c | Porus Homi Havewala This new OTN article is excerpted from Porus Homi Havewala's latest book, Oracle Enteprise Manager Cloud Control 12c: Managing Data Center Chaos (2012, Packt Publishing). Thought for the Day "Never make a technical decision based upon the politics of the situation, and never make a political decision based upon technical issues." — Geoffrey James Source: softwarequotes.com

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• Oracle Solaris Remote Lab (OSRL) Fact Sheet

  - by user13333379

  The Oracle Solaris Remote Lab allows independent software vendors (ISVs) to test and qualify their applications in a self service Solaris cloud. ISVs who are Oracle Partner Network Gold members with a specialization in the Solaris knowledge zone can apply for free access in OPN. The lab offers the following features to it's users: Lifetime of project: 45 days (extensions granted on demand)  Up to 5 virtual machines in a private network  Virtual Machine technology: Solaris zones  Resources per VM processor support: SPARC or x86  OS version: OracleSolaris 11.0 4GB physical memory  4GB swap space  10GB local filesystem storage  10GB network filesystem (NFS) mounted on all virtual machines Networking configuration The only external network routes are to Partner's other Virtual Machines  No network routing to the Internet  The SMB (CIFS) sharing protocol is not available between Virtual Machines  Device Access  Applications that assume the existence of /devices will not run in a Virtual Machine  Applications that use eeprom to modify SPARC eeprom setting will not run in a Virtual Machine The following utilities do not work properly in Virtual Machines:  add_drv, disks, prtconf, prtdiag, rem_dev Access technology: Secure Global Desktop, file up and download root access within VM Available VM templates (both processor architectures) Oracle Database 11g Release 2 (11.2.0.3) for Solaris with Oracle Enterprise Manager 11g Weblogic 12c  SAMP: Apache http server, PHP, MySQL, phpadmin on all templates and images: Oracle Solaris Studio 12.3 for application development  More resources: Online application for Oracle Solaris remote Lab Developer Webinar about the Oracle Solaris Remote Lab Everything an Oracle Solaris Developer needs...

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• Oracle Solaris Remote Lab (OSRL) Fact Sheet

  - by user13333379

  The Oracle Solaris Remote Lab allows independent software vendors (ISVs) to test and qualify their applications in a self service Solaris cloud. ISVs who are Oracle Partner Network Gold members with a specialization in the Solaris knowledge zone can apply for free access in OPN. The lab offers the following features to it's users: Lifetime of project: 45 days (extensions granted on demand)  Up to 5 virtual machines in a private network  Virtual Machine technology: Solaris zones  Resources per VM processor support: SPARC or x86  OS version: OracleSolaris 11.0 4GB physical memory  4GB swap space  10GB local filesystem storage  10GB network filesystem (NFS) mounted on all virtual machines Networking configuration The only external network routes are to Partner's other Virtual Machines  No network routing to the Internet  The SMB (CIFS) sharing protocol is not available between Virtual Machines  Device Access  Applications that assume the existence of /devices will not run in a Virtual Machine  Applications that use eeprom to modify SPARC eeprom setting will not run in a Virtual Machine The following utilities do not work properly in Virtual Machines:  add_drv, disks, prtconf, prtdiag, rem_dev Access technology: Secure Global Desktop, file up and download root access within VM Available VM templates (both processor architectures) Oracle Database 11g Release 2 (11.2.0.3) for Solaris with Oracle Enterprise Manager 11g Weblogic 12c  SAMP: Apache http server, PHP, MySQL, phpadmin on all templates and images: Oracle Solaris Studio 12.3 for application development  More resources: Online application for Oracle Solaris remote Lab Developer Webinar about the Oracle Solaris Remote Lab Everything an Oracle Solaris Developer needs...

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• Does CPIO produce platform dependant archives?

  - by TiCL

  I made a CPIO archive with following command on Solaris 11 (SPARC): find . | cpio -ov >/tmp/myarchive.cpio I copied it to Intel based Solaris 11 machine and tried to extract using the following command cpio -icvdu < myarchive.cpio It gives me following error: cpio: Not a cpio file, bad header. 1 errors The MD5SUM hash matches and I can extract it on another SPARC machine. My question, does CPIO produce platform dependant output? Is there any way to convert it? I cannot use TAR at this moment, because the directory I am archiving has long symbolic links that are skipped by TAR command

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• How the OS Makes the Database Scream

  - by rickramsey

  source Few things are as satisfying as a screaming burnout. When Oracle Database engineers team up with Solaris engineers, they do a lot of them. Here are a few of the reasons why. Article: How the OS Makes the Database Fast - Oracle Solaris For applications that rely on Oracle Database, a high-performance operating system translates into faster transactions, better scalability to support more users, and the ability to support larger capacity databases. When deployed in virtualized environments, multiple Oracle Database servers can be consolidated on the same physical server. Ginny Henningsen describes what Oracle Solaris does to make the Oracle database run faster. Interview: Why Is The OS Still Relevant? In a world of increasing virtualization and growing interest in cloud services, why is the OS still relevant? Michael Palmeter, senior director of Oracle Solaris, explains why it's not only relevant, but essential for data centers that care about performance. Interview: An Engineer's Perspective: Why the OS Is Still Relevant Sysadmins are handling hundreds or perhaps thousands of VM's. What is it about Solaris that makes it such a good platform for managing those VM's? Liane Praza, senior engineer in the Solaris core engineering group provides an engineer's perspective. Interview in the Lab: How to Get the Performance Promised by Oracle's T5 SPARC Chips If you want your applications to run on the new SPARC T5/M5 chips, how do you make sure they use all that new performance? Don Kretsch, Senior Director of Engineering, explains. Interview: Why Oracle Database Engineering Uses Oracle Solaris Studio The design priorities for Oracle Solaris Studio are performance, observability, and productivity. Why this is good for ISV's and developers, and why it's so important to the Oracle database engineering team. Taped in Oct 2012. - Rick Follow me on: Blog | Facebook | Twitter | YouTube | The Great Peruvian Novel

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• IDC Recommends Oracle Solaris 11

  - by user12611852

  IDC published a research report this week on Oracle Solaris 11 and described it as "Delivering unique value."  The report emphasizes the ability of Oracle Solaris to scale up and provide a mission critical platform for a wide variety of computing. Solaris built-in server and network virtualization helps to lower costs and enable consolidation while reducing administration costs and risks. Learn more about Oracle Solaris and the recently announced 11.1 update. In their conclusion, IDC reports: Today, Oracle is a multi-OS vendor that is adjusting to the opportunities presented by a significantly expanded product portfolio. The company has a long history of supporting Unix operating systems with its broad product portfolio, but the main difference is that now Oracle has direct control over the destiny of the Solaris operating system. The company has made a strong commitment to Solaris on both SPARC and x86 systems, as well as to Linux on x86 systems, and expects to continue to enhance Oracle Solaris 11 with update releases once a year as well as Solaris 12, which is already on the road map. Oracle is working to help its customers understand its strong commitment to Oracle Solaris and the product's role as a single operating system that runs on both SPARC and x86 processors. While Oracle Solaris and Oracle Linux are critical assets, the company's crown jewel is the deep collection of software that runs on top of both Oracle Solaris and Oracle Linux, software that creates a robust application environment. The continuing integration and optimization of the software and hardware stack is a differentiator for Oracle and for customers that run an Oracle Solaris stack.

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• Multiple vulnerabilities in Firefox

  - by Ritwik Ghoshal

  CVE DescriptionCVSSv2 Base ScoreComponentProduct and Resolution CVE-2012-3982 Denial of service (DoS) vulnerability 10.0 Firefox Solaris 10 SPARC: 145080-13 X86: 145081-12 CVE-2012-3983 Denial of service (DoS) vulnerability 10.0 CVE-2012-3986 Permissions, Privileges, and Access Controls vulnerability 6.4 CVE-2012-3988 Resource Management Errors vulnerability 9.3 CVE-2012-3990 Resource Management Errors vulnerability 10.0 CVE-2012-3991 Permissions, Privileges, and Access Controls vulnerability 9.3 CVE-2012-3992 Permissions, Privileges, and Access Controls vulnerability 5.8 CVE-2012-3993 Design Error vulnerability 9.3 CVE-2012-3994 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability 4.3 CVE-2012-3995 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability 10.0 CVE-2012-4179 Resource Management Errors vulnerability 10.0 CVE-2012-4180 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability 10.0 CVE-2012-4181 Resource Management Errors vulnerability 10.0 CVE-2012-4182 Resource Management Errors vulnerability 10.0 CVE-2012-4183 Resource Management Errors vulnerability 10.0 CVE-2012-4184 Permissions, Privileges, and Access Controls vulnerability 9.3 CVE-2012-4185 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability 10.0 CVE-2012-4186 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability 10.0 CVE-2012-4187 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability 10.0 CVE-2012-4188 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability 10.0 CVE-2012-4192 Permissions, Privileges, and Access Controls vulnerability 4.3 CVE-2012-4193 Design Error vulnerability 9.3 CVE-2012-4194 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability 4.3 CVE-2012-4195 Permissions, Privileges, and Access Controls vulnerability 5.1 CVE-2012-4196 Permissions, Privileges, and Access Controls vulnerability 5.0 This notification describes vulnerabilities fixed in third-party components that are included in Oracle's product distributions.Information about vulnerabilities affecting Oracle products can be found on Oracle Critical Patch Updates and Security Alerts page. Note: Solaris 10 patches SPARC: 145080-13 X86: 145081-12 contain the fix for all CVEs between Firefox version 10.0.7 and 10.0.12.

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• Fusion Middleware 11gR1 : 6??????

  - by Hiroyuki Yoshino

  2010?6??Fusion Middleware 11gR1 ?????????????? ?????????????3??????? 1. Oracle Enterprise Single Sign-On ?????Microsoft Windows (32-bit), Microsoft Windows x64 ???????????????? 10g?????????????????????????????????????Logon Manager?64-bit???????????? ????·????????????????????????·????????Non Oracle LDAP Certification?????????????? 2. Oracle Tuxedo Oracle Tuxedo 11g???????????? 10g???Oracle Tuxedo System and Application Monitor (TSAM), Oracle Service Architecture Leveraging Tuxedo (SALT)??????????? ??????AIX on Power Systems, HP-UX Itanium, Linux x86, Linux x86-64, Microsoft Windows (32-bit), Microsoft Windows x64, Solaris SPARC (64-bit), Other Platforms ?????????????????????????????????? ????·?????????????????Oracle Tuxedo ? Platform Data Sheets, TSAM ? Supported Platforms, SALT ? Supported Platforms ?????????? 3. Application Adapters ???Mainframe Adapters, CDC Adapters????Application Adapters?11g????????????? JD Edwards, PeopleSoft, SAP, Siebel ??????????????????? ??????AIX on Power Systems, HP-UX Itanium, HP-UX PA-RISC, Linux x86, Linux x86-64, Microsoft Windows (32-bit), Microsoft Windows x64, Solaris SPARC (64-bit) ??????????????? ??????(??????????????????)????????·????????Adapter Certification?????????????? ????? ????????(Media Pack)??????????????(Media Pack)????????????????? (2010?6??????????????????????)

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• Solaris 11 ???! Oracle Solaris Cluster 4.0

  - by user12798668

  2011 ? 11 ? 9 ??????? Oracle Solaris 11 ????2011 ? 12 ? 6 ??Oracle Solaris 11 ????? Oracle Solaris Cluster 4.0 ??????????? Oracle Solaris Cluster ? Solaris ?????????????????????Sun ??? Sun Cluster ???????????? ????????Oracle Solaris Cluster ????????????????????? Oracle ?????????????????????????Oracle Solaris Cluster ?????????????????????????????????????????Oracle Solaris Cluster ???????????????????????????·??????? Geographic Edition ??????????????????? Solaris 10 ???????? Oracle Solaris Cluster ? 3.3 5/11 (Update 1) ????Solaris 11 ??????????? 4.0 ???????????Oracle Solaris Cluster 4.0 ??????????????? Solaris 11 IPS / AI ????? Solaris ????? (Solaris Zones, Oracle VM Server for SPARC) ????? Oracle Solaris Cluster Geographic Edition ????????·??????????? Oracle Solaris Cluster ??????????????????????????????Oracle Solaris Cluster ???????? Solaris ??????????????????Solaris ???????? Solaris Cluster ????????????????????????? Solaris 11 ???Solaris ???????? IPS ? ????????????? Solaris 11 ?????Oracle OpenWorld Tokyo 2012 ?????? 4/6(?) ????????????49 ????? Oracle Develop ?????????????? 4/6(?) D3-03 ?Oracle Solaris 11??????????????????(13:00 - 13:45) 4/6(?) D3-13 ??????????????????? Oracle Database?SPARC/Solaris???????????????????????? (14:00 - 14:45) 4/6(?) S2-53 ?Oracle Solaris 11 ??????????????-IPS ????????(16:00 - 17:30) ???????????!! (Oracle Develop ? Solaris ??????????????????????????????????) Oracle OpenWorld Tokyo 2012 ???? URL http://www.oracle.com/openworld/jp-ja/index.html ?????? 7264 ???????????????

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• Oracle regains the #1 UNIX Shipments Marketshare

  - by EricReid-Oracle

  Oracle has regained the #1 UNIX Server Shipments spot! According to IDC, Oracle’s share was 33.6%, up from 32.7% in the year ago period, and 32.2% in C4Q13:  IDC: WW Unix Unit Shipments, Share, Growth 2013Q1 Share 2013Q4 Share 2014Q1 Share Sequential Growth Y/Y Growth Oracle 10,141 32.7% 10,294 32.2% 8,355 33.6% -18.8% -17.6% IBM 10,203 32.9% 11,533 36.0% 6,919 27.8% -40.0% -32.2% HP 7,046 22.7% 6,786 21.2% 6,549 26.4% -3.5% -7.1% Fujitsu 1,174 3.8% 1,141 3.6% 1,069 4.3% -6.3% -8.9% Dell 565 1.8% 499 1.6% 519 2.1% 4.0% -8.2% NEC 69 0.2% 81 0.3% 63 0.3% -22.5% -9.4% Others 1,804 5.8% 1,684 5.3% 1,380 5.6% -18.1% -23.5% Total Market 31,002 100.0% 32,018 100.0% 24,854 100.0% -22.4% -19.8% While the UNIX server space is currently undergoing some contraction (on a pure numbers basis), this can be traced in part to an overall consolidation trend, due to the greatly-increased price-performance of our systems. Consider this: one SPARC T5-4 system has 1/16th the number of sockets and 1/192nd the number of cores of the previous high-end M9000-64 system -- all at 5X the price-performance. SPARC. Solaris. Nuff' said.

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• Solaris OS?????????? (??????·SIer????!??????)

  - by OTN-J Master

  Solaris11???????????????2011?11??????OS????????11.1??????????2012?11???????????????OTN?Solaris11?????????????????????????????????????OTN?????????????????????????????????????????????????????????????????????IT?????????Solaris??????????????????????????????????????????Solaris???????Solaris 11?????????5???????????Solaris 11??????????????????????????????????????????????????????????????????????????????????????????????????????????????????OS????????????????????????????????????????????????OS???????????????Sun???????Solaris???????????????????????Solaris????????????????SPARC?????????????????????????????????????????????Solaris??????????????????????????????????????????Solaris???????????????????????????Oracle Database?????????????Oracle Database??????????????????????????????????????????????????????????????DB???????????Solaris??????????????????????????????????????(Solaris11.1??????????????????)???????????????????????????????????????????? ??????????????OS???????????????????? Solaris ?????????????????????????????? ?????????????????????????????????????????? Solaris????????????????????????? ???Solaris????????????Solaris???????????????????? ???????OS??????????????Solaris???????????????????1???????????????????10??????????????????????????????????????????????(??????????????????????????????????)Oracle Solaris 11: ????????·????????????????????????????·???????Oracle Solaris 11?????·?????????????????????????????????????Oracle Solaris 11????????????IT??????????????????????????????????????????????????????????????????????????????Solaris??????????????Solaris 11????????????????????????????????????Solaris 11????????????Oracle Solaris 11 ??????·????????10???????????????????????????????????????????????OTN???????????????Solaris 11?????????????????????????????????????????????????????(??????"????”??!)IBM AIX?Oracle Solaris???????·?????·???HP-UX/Oracle Solaris???????????HP-UX?Oracle Solaris 11????HP-UX ?? Oracle Solaris ???????Red Hat Enterprise Linux?Oracle Solaris 11???Red Hat Enterprise Linux??Oracle Solaris??????? ??????????????????????Oracle Solaris????????????????Solaris????????????????????????????????????????????????????????????????????”?????????????????”?????????????????????????????????????????????????????????????Solaris 11.1??? ???????????????????????????????????Solaris 11???????????????????????????????????????Solaris 11.1?????????????????????????????????????????????????·?????????x86??SPARC?????????????????x86?????????????????????????Solaris 11??????????????????????????????????????OTN?????????????????????????????????????????????????????????????????????DVD??????????????????????????????????????????????????????????(??????????????) ?????????11?14?(?)?????????????????????Oracle DBA & Developer Day??????????????Oracle Solaris?Oracle Hardware???????????????????Oracle Solaris 11????????????????Solaris 11???????????????????????????11?14?(?)?? 15:50-16:50 ?? 17:00-18:00??????????: ?????Oracle Solaris 11!Solaris???????????????????????100?????????????????????Solaris Zones?DTrace?ZFS????????????Solaris 11?100?????????????????>> ????????????

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• What is purpuse of T4 Generator in T4toolbox

  - by Fred Yang

  I am using T4toolbox, I am confused what the generator is for. I can run the following public class Generator1 : Generator { protected override void RunCore() { Template1 t = new Template1(); t.Output.File = "t3.txt"; t.Render(); } } or I can run t4 script directly like the following. Template1 t = new Template1(); t.Output.File = "t3.txt"; t.Render(); But I can do the same using t4 script without generator as well. So I mean can do the same thing with two approach "script -- generator -- template" and "script -- template", am I missing something? Thanks

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• Getting error while invoking java weblogic.WLST from C drive

  - by user3718817

  I am getting an error message when I try to invoke java weblogic.WLST monitor.py weblogic weblogic1 t3://localhost:7001 from below mentioned path. C:\Users\satish>java weblogic.WLST monitor.py weblogic weblogic1 t3://127.0.0.1:7001 error Error: Could not find or load main class weblogic.WLST But when I invoke the same command from weblogic home I am not getting any issues. Requesting you to help regarding this. Please find the below class path: C:\Oracle\Middleware\wlserver_10.3\server\bin>setWLSEnv.cmd Error: Could not find or load main class weblogic.WLST Note: I already set class path. Kindly advise where I am getting wrong. Or is there any way that I can invoke my Python script from anywhere?

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• PHP: How to use mysql fulltext search and handle fulltext search result

  - by garcon1986

  Hello, I have tried to use mysql fulltext search in my intranet. I wanted to use it to search in multiple tables, and get the independant results depending on tables in the result page. This is what i did for searching. $query = " SELECT * FROM testtable t1, testtable2 t2, testtable3 t3 WHERE match(t1.firstName, t1.lastName, t1.details) against(' ".$value."') or match(t2.others, t2.information, t2.details) against(' ".$value."') or match(t3.other, t2.info, t2.details) against(' ".$value."') "; $result = mysql_query($query)or die('query error'.mysql_error()); while($row = mysql_fetch_assoc($result)){ echo $row['firstName']; echo $row['lastName']; echo $row['details'].'<br />'; } Do you have any ideas about optimizing the query and format the output of search results?

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• MySQL Need help constructing query: join multiple tables into single row

  - by Jed Daniels

  Hello stackoverflowers, Forgive me if this question has been asked and answered, I've searched and found a few that look similar but I'm too much of a novice with SQL to adapt them to my needs. Also forgive me if I don't use the correct terminology, I know it can be annoying when someone asks a question and they don't even know enough to be able to ask for what they need. I'm helping a friend gather some data, and need to perform a query that results in a single row per record, but instead I get multiple rows. Here is an example of what I'm querying right now (simplified, hopefully not too much): SELECT * FROM `table_one` AS t1 INNER JOIN `table_two` AS t2 ON t1.id = t2.id INNER JOIN `table_three` AS t3 ON t1.id = t3.id WHERE 1 The result is: id text number 5 Subtotal 17 5 Tax 3 5 Total 20 What I need is to create a query that results in something more like this: id text number text number text number 5 subtotal 17 Tax 3 Total 20 Any assistance/guidance would be much appreciated. Thanks! --jed

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• How can I call a module in a Perl one-liner?

  - by Zaid

  Say I have a data file that I want to process; I want to take the maximum value of each of the column and append it to the end of each line. INPUT: T1 T2 T3 35.82 34.67 31.68 32.20 34.52 33.59 37.41 38.64 37.56 OUTPUT: T1 T2 T3 35.82 34.67 31.68 35.82 32.20 34.52 33.59 34.52 37.41 38.64 37.56 38.64 I'm trying to implement this as a one-liner. So far, this is what I've come up with, although it complains that &main::max is undefined: perl -MList::Util -ani.bak -e "print qq(@F).q( ).max(@F).qq(\n)" file1.txt It seems that I haven't loaded the List::Util module. What's wrong? And is the header column an issue? perlrun doesn't have a decent example on how to do this (actually it does now, my documentation was a little out-of-date).

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• Using SetThreadAffinityMask function imported from kernel32.dll in C # code.

  - by DotNetBeginner

  I am trying to set Thread Affinity using SetThreadAffinityMask function imported from kernel32.dll in C # code of mine. This is how I import SetThreadAffinityMask function from "kernel32.dll" in my C# .net code [DllImport("kernel32.dll")] static extern IntPtr SetThreadAffinityMask(IntPtr hThread, IntPtr dwThreadAffinityMask); I am creating 3 threads Thread t1=new Thread(some delegate); Thread t2=new Thread(some delegate); Thread t3=new Thread(some delegate); I wish to set Thread affinity for t1,t2 & t3 for which I am using SetThreadAffinityMask function. But I am not getting how to pass parameters to this function. SetThreadAffinityMask takes two parameters 1. HANDLE hThread 2. DWORD_PTR dwThreadAffinityMask Please help me in using SetThreadAffinityMask function in C# Thanks in advance !

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• whats wrong in this LINQ synatx?

  - by Saurabh Kumar

  Hi, I am trying to convert a SQL query to LINQ. Somehow my count(distinct(x)) logic does not seem to be working correctly. The original SQL is quite efficient(or so i think), but the generated SQL is not even returning the correct result. I am trying to fix this LINQ to do what the original SQL is doing, AND in an efficient way as the original query is doing. Help here would be really apreciated as I am stuck here :( SQL which is working and I need to make a comparable LINQ of: SELECT [t1].[PersonID] AS [personid] FROM [dbo].[Code] AS [t0] INNER JOIN [dbo].[phonenumbers] AS [t1] ON [t1].[PhoneCode] = [t0].[Code] INNER JOIN [dbo].[person] ON [t1].[PersonID]= [dbo].[Person].PersonID WHERE ([t0].[codetype] = 'phone') AND ( ([t0].[CodeDescription] = 'Home') AND ([t1].[PhoneNum] = '111') OR ([t0].[CodeDescription] = 'Work') AND ([t1].[PhoneNum] = '222') ) GROUP BY [t1].[PersonID] HAVING COUNT(DISTINCT([t1].[PhoneNum]))=2 The LINQ which I made is approximately as below: var ids = context.Code.Where(predicate); var rs = from r in ids group r by new { r.phonenumbers.person.PersonID} into g let matchcount=g.Select(p => p.phonenumbers.PhoneNum).Distinct().Count() where matchcount ==2 select new { personid = g.Key }; Unfortunately, the above LINQ is NOT generating the correct result, and is actually internally getting generated to the SQL shown below. By the way, this generated query is also reading ALL the rows(about 19592040) around 2 times due to the COUNTS :( Wich is a big performance issue too. Please help/point me to the right direction. Declare @p0 VarChar(10)='phone' Declare @p1 VarChar(10)='Home' Declare @p2 VarChar(10)='111' Declare @p3 VarChar(10)='Work' Declare @p4 VarChar(10)='222' Declare @p5 VarChar(10)='2' SELECT [t9].[PersonID], ( SELECT COUNT(*) FROM ( SELECT DISTINCT [t13].[PhoneNum] FROM [dbo].[Code] AS [t10] INNER JOIN [dbo].[phonenumbers] AS [t11] ON [t11].[PhoneType] = [t10].[Code] INNER JOIN [dbo].[Person] AS [t12] ON [t12].[PersonID] = [t11].[PersonID] INNER JOIN [dbo].[phonenumbers] AS [t13] ON [t13].[PhoneType] = [t10].[Code] WHERE ([t9].[PersonID] = [t12].[PersonID]) AND ([t10].[codetype] = @p0) AND ((([t10].[codetype] = @p1) AND ([t11].[PhoneNum] = @p2)) OR (([t10].[codetype] = @p3) AND ([t11].[PhoneNum] = @p4))) ) AS [t14] ) AS [cnt] FROM ( SELECT [t3].[PersonID], ( SELECT COUNT(*) FROM ( SELECT DISTINCT [t7].[PhoneNum] FROM [dbo].[Code] AS [t4] INNER JOIN [dbo].[phonenumbers] AS [t5] ON [t5].[PhoneType] = [t4].[Code] INNER JOIN [dbo].[Person] AS [t6] ON [t6].[PersonID] = [t5].[PersonID] INNER JOIN [dbo].[phonenumbers] AS [t7] ON [t7].[PhoneType] = [t4].[Code] WHERE ([t3].[PersonID] = [t6].[PersonID]) AND ([t4].[codetype] = @p0) AND ((([t4].[codetype] = @p1) AND ([t5].[PhoneNum] = @p2)) OR (([t4].[codetype] = @p3) AND ([t5].[PhoneNum] = @p4))) ) AS [t8] ) AS [value] FROM ( SELECT [t2].[PersonID] FROM [dbo].[Code] AS [t0] INNER JOIN [dbo].[phonenumbers] AS [t1] ON [t1].[PhoneType] = [t0].[Code] INNER JOIN [dbo].[Person] AS [t2] ON [t2].[PersonID] = [t1].[PersonID] WHERE ([t0].[codetype] = @p0) AND ((([t0].[codetype] = @p1) AND ([t1].[PhoneNum] = @p2)) OR (([t0].[codetype] = @p3) AND ([t1].[PhoneNum] = @p4))) GROUP BY [t2].[PersonID] ) AS [t3] ) AS [t9] WHERE [t9].[value] = @p5 Thanks!

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• Understanding the workings of equals and hashCode in a HashMap

  - by andandandand

  I have this test code: import java.util.*; class MapEQ { public static void main(String[] args) { Map<ToDos, String> m = new HashMap<ToDos, String>(); ToDos t1 = new ToDos("Monday"); ToDos t2 = new ToDos("Monday"); ToDos t3 = new ToDos("Tuesday"); m.put(t1, "doLaundry"); m.put(t2, "payBills"); m.put(t3, "cleanAttic"); System.out.println(m.size()); } } class ToDos{ String day; ToDos(String d) { day = d; } public boolean equals(Object o) { return ((ToDos)o).day == this.day; } // public int hashCode() { return 9; } } When // public int hashCode() { return 9; } is uncommented m.size() returns 2, when it's left commented it returns three. Why?

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• Inject same DataContext instance across several types with Unity

  - by Sergejus

  Suppose I have IRepository interface and its implementation SqlRepository that takes as an argument LINQ to SQL DataContext. Suppose as well that I have IService interface and its implementation Services that takes three IRepository, IRepository and IRepository. Demo code is below: public interface IRepository<T> { } public class SqlRepository<T> : IRepository<T> { public SqlRepository(DataContext dc) { ... } } public interface IService<T> { } public class Service<T,T1,T2,T3> : IService<T> { public Service(IRepository<T1> r1, IRepository<T2>, IRepository<T3>) { ... } } Is it any way while creating Service class to inject all three repositories with the same DataContext?

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• PHP drop down which each are dependable

  - by user147685

  Hi all, I have this problems. using html and php. May I know how to do this. I have 2 drop down, eg A and B. Drop down B is depend to the drop down A. Example, A have these options which will be called from dbase(no prob with this, tq) (Jack, Carol), and B wil have options depend on A: if select Jack(T1, T2, T3), if select carol(T1,T2,T3,T4,T5). Here are the sample interface. Can someone help me with this? thank you.

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• B-trees, databases, sequential inputs, and speed.

  - by IanC

  I know from experience that b-trees have awful performance when data is added to them sequentially (regardless of the direction). However, when data is added randomly, best performance is obtained. This is easy to demonstrate with the likes of an RB-Tree. Sequential writes cause a maximum number of tree balances to be performed. I know very few databases use binary trees, but rather used n-order balanced trees. I logically assume they suffer a similar fate to binary trees when it comes to sequential inputs. This sparked my curiosity. If this is so, then one could deduce that writing sequential IDs (such as in IDENTITY(1,1)) would cause multiple re-balances of the tree to occur. I have seen many posts argue against GUIDs as "these will cause random writes". I never use GUIDs, but it struck me that this "bad" point was in fact a good point. So I decided to test it. Here is my code: SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO CREATE TABLE [dbo].[T1]( [ID] [int] NOT NULL CONSTRAINT [T1_1] PRIMARY KEY CLUSTERED ([ID] ASC) ) GO CREATE TABLE [dbo].[T2]( [ID] [uniqueidentifier] NOT NULL CONSTRAINT [T2_1] PRIMARY KEY CLUSTERED ([ID] ASC) ) GO declare @i int, @t1 datetime, @t2 datetime, @t3 datetime, @c char(300) set @t1 = GETDATE() set @i = 1 while @i < 2000 begin insert into T2 values (NEWID(), @c) set @i = @i + 1 end set @t2 = GETDATE() WAITFOR delay '0:0:10' set @t3 = GETDATE() set @i = 1 while @i < 2000 begin insert into T1 values (@i, @c) set @i = @i + 1 end select DATEDIFF(ms, @t1, @t2) AS [Int], DATEDIFF(ms, @t3, getdate()) AS [GUID] drop table T1 drop table T2 Note that I am not subtracting any time for the creation of the GUID nor for the considerably extra size of the row. The results on my machine were as follows: Int: 17,340 ms GUID: 6,746 ms This means that in this test, random inserts of 16 bytes was almost 3 times faster than sequential inserts of 4 bytes. Would anyone like to comment on this? Ps. I get that this isn't a question. It's an invite to discussion, and that is relevant to learning optimum programming.

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• WPF: Problem with TreeView databinding

  - by Am

  Hi, I have a tree view defined as follows: <TreeView Grid.Row="0" Grid.Column="0" Margin="0" FlowDirection="LeftToRight" ItemTemplate="{StaticResource NavigationHeaderTemplate}" Name="TreeView2"> </TreeView> The data binding is: public class ViewTag : INotifyPropertyChanged { private string _tagName; public string TagName { get { return _tagName; } set { _tagName = value; PropertyChanged(this, new PropertyChangedEventArgs("Tag Name")); } } private ObservableCollection<ViewTag> _childTags; public ObservableCollection<ViewTag> ChildTags { get { return _childTags; } set { _childTags = value; OnPropertyChanged(new PropertyChangedEventArgs("Child Tags")); } } #region INotifyPropertyChanged Members public event PropertyChangedEventHandler PropertyChanged; public void OnPropertyChanged(PropertyChangedEventArgs e) { if (PropertyChanged != null) PropertyChanged(this, e); } #endregion public ViewTag(string tagName, ObservableCollection<ViewTag> childTags) { _tagName = tagName; _childTags = childTags; } } And my test binding is: List<ViewTag> tempTags = new List<ViewTag>(); ViewTag t1, t2, t3, t4, t5, t6; t1 = new ViewTag("Computers", null); t2 = new ViewTag("Chemistry", null); t3 = new ViewTag("Physics", null); var t123 = new ObservableCollection<ViewTag>(); t123.Add(t1); t123.Add(t2); t123.Add(t3); t4 = new ViewTag("Science", t123); var t1234 = new ObservableCollection<ViewTag>(); t1234.Add(t4); t5 = new ViewTag("All Items", t1234); t6 = new ViewTag("Untagged", null); var tall = new ObservableCollection<ViewTag>(); tall.Add(t5); tall.Add(t6); xy.Add(new ViewNavigationTree() { Header = "Tags", Image = "img/tags2.ico", Children = tall }); var rootFolders = eDataAccessLayer.RepositoryFacrory.Instance.MonitoredDirectoriesRepository.Directories.ToList(); var viewFolders = new ObservableCollection<ViewTag>(); foreach (var vf in rootFolders) { viewFolders.Add(new ViewTag(vf.FullPath, null)); } xy.Add(new ViewNavigationTree() { Header = "Folders", Image = "img/folder_16x16.png", Children = viewFolders }); xy.Add(new ViewNavigationTree() { Header = "Authors", Image = "img/user_16x16.png", Children = null }); xy.Add(new ViewNavigationTree() { Header = "Publishers", Image = "img/powerplant_32.png", Children = null }); TreeView2.ItemsSource = xy; Problem is, the tree only shows: + Tags All Items Untagged + Folders dir 1 dir 2 ... Authors Publishers The items I added under "All Items" aren't displayed. Being a WPF nub, i can't put my finger on the problem. Any help will be greatly appriciated.

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• Unable to type cast <AnonymousType#1> to <WindowsFormsApplication1.Attributes> [ C#3.0 ]

  - by Newbie

  I have List<Attributes> la = new List<Attributes>(); la = (from t in result let t1 = t.AttributeCollection from t2 in t1 where t2.AttributeCode.Equals(attributeType) let t3 = t2.TimeSeriesData from k in t3.ToList() where k.Key.Equals(startDate) && k.Key.Equals(endDate) select new { AttributeCode = attributeType, TimeSeriesData = fn(k.Key, k.Value.ToString()) }).ToList<Attributes>(); I am getting the error: 'System.Collections.Generic.IEnumerable<AnonymousType#1>' does not contain a definition for 'ToList' and the best extension method overload 'System.Linq.Enumerable.ToList<TSource>(System.Collections.Generic.IEnumerable<TSource>)' has some invalid arguments I understood tye error meaning but how to type cast it. I have used var and then iterating over it got the result. But without that any other way by which I can do it? Using C# 3.0 Thanks

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• OpenSSL Versions in Solaris

  - by darrenm

  Those of you have have installed Solaris 11 or have read some of the blogs by my colleagues will have noticed Solaris 11 includes OpenSSL 1.0.0, this is a different version to what we have in Solaris 10.  I hope the following explains why that is and how it fits with the expectations on binary compatibility between Solaris releases. Solaris 10 was the first release where we included OpenSSL libraries and headers (part of it was actually statically linked into the SSH client/server in Solaris 9).  At time we were building and releasing Solaris 10 the current train of OpenSSL was 0.9.7.  The OpenSSL libraries at that time were known to not always be completely API and ABI (binary) compatible between releases (some times even in the lettered patch releases) though mostly if you stuck with the documented high level APIs you would be fine.   For this reason OpenSSL was classified as a 'Volatile' interface and in Solaris 10 Volatile interfaces were not part of the default library search path which is why the OpenSSL libraries live in /usr/sfw/lib on Solaris 10.  Okay, but what does Volatile mean ? Quoting from the attributes(5) man page description of Volatile (which was called External in older taxonomy): Volatile interfaces can change at any time and for any reason. The Volatile interface stability level allows Sun pro- ducts to quickly track a fluid, rapidly evolving specif- ication. In many cases, this is preferred to providing additional stability to the interface, as it may better meet the expectations of the consumer. The most common application of this taxonomy level is to interfaces that are controlled by a body other than Sun, but unlike specifications controlled by standards bodies or Free or Open Source Software (FOSS) communities which value interface compatibility, it can not be asserted that an incompatible change to the interface specifica- tion would be exceedingly rare. It may also be applied to FOSS controlled software where it is deemed more important to track the community with minimal latency than to provide stability to our customers. It also common to apply the Volatile classification level to interfaces in the process of being defined by trusted or widely accepted organization. These are generically referred to as draft standards. An "IETF Internet draft" is a well understood example of a specification under development. Volatile can also be applied to experimental interfaces. No assertion is made regarding either source or binary compatibility of Volatile interfaces between any two releases, including patches. Applications containing these interfaces might fail to function properly in any future release. Note that last paragraph!  OpenSSL is only one example of the many interfaces in Solaris that are classified as Volatile.  At the other end of the scale we have Committed (Stable in Solaris 10 terminology) interfaces, these include things like the POSIX APIs or Solaris specific APIs that we have no intention of changing in an incompatible way.  There are also Private interfaces and things we declare as Not-an-Interface (eg command output not intended for scripting against only to be read by humans). Even if we had declared OpenSSL as a Committed/Stable interface in Solaris 10 there are allowed exceptions, again quoting from attributes(5): 4. An interface specification which isn't controlled by Sun has been changed incompatibly and the vast majority of interface consumers expect the newer interface. 5. Not making the incompatible change would be incomprehensible to our customers. In our opinion and that of our large and small customers keeping up with the OpenSSL community is important, and certainly both of the above cases apply. Our policy for dealing with OpenSSL on Solaris 10 was to stay at 0.9.7 and add fixes for security vulnerabilities (the version string includes the CVE numbers of fixed vulnerabilities relevant to that release train).  The last release of OpenSSL 0.9.7 delivered by the upstream community was more than 4 years ago in Feb 2007. Now lets roll forward to just before the release of Solaris 11 Express in 2010. By that point in time the current OpenSSL release was 0.9.8 with the 1.0.0 release known to be coming soon.  Two significant changes to OpenSSL were made between Solaris 10 and Solaris 11 Express.  First in Solaris 11 Express (and Solaris 11) we removed the requirement that Volatile libraries be placed in /usr/sfw/lib, that means OpenSSL is now in /usr/lib, secondly we upgraded it to the then current version stream of OpenSSL (0.9.8) as was expected by our customers. In between Solaris 11 Express in 2010 and the release of Solaris 11 in 2011 the OpenSSL community released version 1.0.0.  This was a huge milestone for a long standing and highly respected open source project.  It would have been highly negligent of Solaris not to include OpenSSL 1.0.0e in the Solaris 11 release. It is the latest best supported and best performing version.     In fact Solaris 11 isn't 'just' OpenSSL 1.0.0 but we have added our SPARC T4 engine and the AES-NI engine to support the on chip crypto acceleration. This gives us 4.3x better AES performance than OpenSSL 0.9.8 running on AIX on an IBM POWER7. We are now working with the OpenSSL community to determine how best to integrate the SPARC T4 changes into the mainline OpenSSL.  The OpenSSL 'pkcs11' engine we delivered in Solaris 10 to support the CA-6000 card and the SPARC T1/T2/T3 hardware is still included in Solaris 11. When OpenSSL 1.0.1 and 1.1.0 come out we will asses what is best for Solaris customers. It might be upgrade or it might be parallel delivery of more than one version stream.  At this time Solaris 11 still classifies OpenSSL as a Volatile interface, it is our hope that we will be able at some point in a future release to give it a higher interface stability level. Happy crypting! and thank-you OpenSSL community for all the work you have done that helps Solaris.

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