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Oracle OpenWorld Countdown Begins

- by Michelle Kimihira

Oracle OpenWorld is a little over 3 weeks away and it is bigger than ever! We are very excited to meet with you and share our exciting innovations around Oracle Fusion Middleware. To help you navigate, there will be a series of blogs to help you make the most out of the event. Thomas Kurian, Executive Vice President, Product Development will be delivering his keynote, “The Oracle Cloud: Oracle’s Cloud Platform and Applications Strategy” on Tuesday, October 2 at 8:00 AM – 9:45 AM in Moscone North, Hall D. Be sure to attend this session and gain insight on how Oracle’s complete suite of cloud applications are transforming how customers manage their businesses. Here are the top 5 Oracle Fusion Middleware General Sessions you don’t want to miss: Monday, 10/1 10:45 AM – 11:45 AM GEN9504 - General Session: Innovation Platform for Oracle Apps, Including Fusion Applications Amit Zavery, Vice President, Fusion Middleware Product Management Moscone West, 3002/3004 Monday, 10/1 1:45PM – 2:45 PM GEN11554 – General Session: Extend Oracle Applications to Mobile Devices with Oracle’s Mobile Technologies Moscone West, 3002/3004 Monday, 10/1 4:45 PM – 5:45 PM GEN11422 – General Session: Building and Managing a Private Oracle Java and Middleware Cloud Moscone West, 3014 Tuesday, 10/2 10:15 AM – 11:15 AM GEN9394 - General Session: Oracle Fusion Middleware Strategies Driving Business Innovation Hassan Rizvi, Executive Vice President of Product Development Moscone North, Hall D Tuesday, 10/2 11:45 AM – 12:45AM CON9162 – Oracle Fusion Middleware: Meet This Year’s Most Impressive Customer Projects Moscone West, 3001 Here is what else you can expect to see on the Oracle Fusion Middleware Blog leading up to Oracle OpenWorld 2012. § Week of 10-14 September: Best of Oracle Fusion Middleware and Oracle Fusion Middleware for Enterprise Applications § Week of 17-21 September: What to expect in Hassan Rizvi’s (Executive Vice President of Product Development) and Amit Zavery’s (Vice President of Product Management) sessions § Week of 24-28 September: All Things Mobile and Fusion Middleware Lineup

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Dumping a Linux console scrollback buffer?

- by Gerald Combs

We would like to save the output of a program run on a Linux console which spans many lines. Unfortunately it wasn't logged or run under screen, or any other way that lets us easily capture the output. The best method we've been able to come up with so far is: Log into the machine via a separate SSH session In the console session, page to the top of the buffer Repeat: In the SSH session, run "cat /dev/vcs >> screendump.txt" In the console session, page down one screen Dump the final screen in the SSH session Is there a better way? It seems like if the VC memory were contiguous and you knew where it was you could use dd to pull the console text directly out of kernel memory and into a file.

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24HOP & SQLRally News

- by NeilHambly

24 Hours of PASS The Spring 2012 SQLPASS 24 hours of PASS event is a WHOLE DAY {Yes 24 hours’ worth} of SQL session exploding right onto computer screen’s near you When: 21st March 2012 - 1 session every hour on the hour for a full 24 hours The full agenda contains all the exciting details for each of the sessions & the speakers delivering the session But just in case, the ones you can't make it too on the day, you can watch them at a later time But you'll be attending mine LIVE of course...(read more)

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Great Expectations - Fusion HCM Highlights at OOW

- by Kathryn Perry

A guest post by Lisa Conley, Principal Product Strategy Manager, Fusion HCM, Oracle Applications Development Oracle Open World is just around the corner! There's always so much to see and do and learn at the conference so I want to share some of the 'don't miss' Fusion HCM highlights with you. (Use this tool to search by session number to get a full description.) For starters, we have several customers who will be sharing their Fusion HCM implementation stories. We'll kick off these presentations with a customer panel at 12:15 on Monday in Moscone West 2005 (CON9420). You'll hear from Zillow, the Gerson Lehrman Group, UBS, and ConAgra about their experiences with our products. Oracle partners MarketSphere (CON8581) and eVerge (CON3800) have implemented Fusion HCM themselves and and will talk about how they'll use their experiences to help customers with their implementations (both are in Moscone West 2006). Beth Correa, CEO of Official Payroll Advisor, will highlight her favorite things about Oracle Fusion HCM Payroll on Tuesday at 11:45 in Moscone West 2006 (CON6691). And you'll get to hear from customers again when they speak with Steve Miranda in his Oracle Applications: Strategic Directions and Recommendations session on Tuesday at 1:15 in Moscone West 2002/2004 (CON11434). To bring it all together for you, we've listed all your Fusion HCM opportunities to learn and interact in this Focus On Document. I am really looking forward to the sessions on Human Capital Management in the Cloud. The Oracle Cloud combines the multiple product offerings into a single environment that leverages a common technology infrastructure enabling users to focus on their business - not the business of managing environments. On Tuesday at 10:15 in Moscone West 2002/2004, there is a General Session entitled the Future of Oracle HCM -- Strategy and Roadmap (GEN9505). This will touch on all product lines. Fusion HCM will be highlighted in Gretchen Alarcon's Oracle HCM: Overview, Strategy, Customer Experiences, and Roadmap session on Monday at 12:15 in Moscone West 2005 (CON9410). Also on Tuesday at 1:15 in Moscone West 2006, is a session focused on Talent Management and how you can try out these new products, co-existing with your current product set (CON9430). This is important in that you can test the waters before diving in. ConAgra will be sharing their experience in this session as well. And of course, if you want to have a personal demonstration, please come by the Oracle DEMOgrounds in West Exhibition Hall Level 1 or the Oracle Cloud Services Lounge at Moscone West Level 3 where our Oracle HCM Cloud Services experts will be ready to answer your questions. I hope you have a wonderful week in San Francisco.Lisa ConleyPrincipal Product Strategy Manager, Fusion HCMApplications DevelopmentOracle Corporation

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Servlet 3.1, Expression Language 3.0, Bean Validation 1.1, Admin Console Replay: Java EE 7 Launch Webinar Technical Breakouts on YouTube

- by arungupta

As stated previously (here, here, here, and here), the On-Demand Replay of Java EE 7 Launch Webinar is already available. You can watch the entire Strategy and Technical Keynote there, and all other Technical Breakout sessions as well. We are releasing the final set of Technical Breakout sessions on GlassFishVideos YouTube channel as well. In this series, we are releasing Servlet 3.1, Expression Language 3.0, Bean Validation 1.1, and Admin Console. Here's the Servlet 3.1 session: Here's the Expression Language 3.0 session: Here's the Bean Validation 1.1 session: And finally the Admin Console session: Enjoy watching all of them together in a consolidated playlist: And don't forget to download Java EE 7 SDK and try the numerous bundled samples.

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System starts without sound in Lubuntu

- by cipricus

When I log in the sound is muted. Why is that? This image is from the Xfce mixer, while the lxde volume does not show that the sound is off. So, I can see the sound muted only in Xfce Mixer. But I can also start the sound in another application, Pulse Audio Volume Control, if I change a setting in Output Devices from Analog Mono Output to LFE on Mono Separate Devices: The Analog Mono Output option here sets in fact the Xfce Mixer in the mute position from the first image. Could this be related to managing sessions (and therefore to these question)? This happens in LXDE session as well as in Lubuntu session. Starting sound and logging out and in between any of these two sessions would mute the volume as shown. Starting the volume in one of these and logging out and then logging in into the Gnome session, the sound would be off; but then, after starting sound, logging out of Gnome and then logging in into any session, the sound would not be muted. But after restart it would be so no matter the session.

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What are some best practices for cookie based web authentication?

- by rdasxy

I'm working on a small side project using CGI and Python (scalability is not an issue and it needs to be a VERY simple system. I was thinking of implementing authentication using cookies, and was wondering if there were any established best practices. When the user successfully authenticates, I want to use cookies to figure out who is logged on. What, according to the best practices, should be stored in such a cookie?

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Oracle OpenWorld 2012: Oracle Developer Cloud, ADF-Essentials, ADF Mobile and ME!

- by Dana Singleterry

This year at OOW, like those from the past, will certainly be unforgettable. Lots of new announcements which I can't mention here and may not event know about are sure to surprise. I'll keep this short and sweet. For every session ADF, ADF Mobile, Oracle Developer Cloud, Integration with SOA Suite, etc... take a look at the ADF Focus Document listing all the sessions ordered by day providing time and location. For Mobile specifically check out the Mobile Focus Document. OOW 2012 actually kicks off on Sunday with Moscone North demogrounds hosting Cloud. There's also the ADF EMG User Day where you can pick up many technical tips & tricks from ADF Developers / ACE Directors from around the world. A session you shouldn't miss and a great starting point for the week if you miss Sunday's ADF EMG User Day for all of you TechoFiles is Chris Tonas's keynote for developers - Monday 10:45 am at Salon 8 in the Marriott - The Future of Development for Oracle Fusion - From Desktop to Mobile to Cloud. Then peruse the ADF Focus Document to fill out your day with the many sessions and labs on ADF. Don't forge that Wednesday afternoon (4:30 - 5:30) offers an ADF Meetup which is an excellent opportunity to catch up with the Shakers and Makers of ADF from Product Managent, to customers, to top developers leveraging the ADF technology, to ACE Directors themselves. Not to mention free beer is provided to help you wind down from a day of Techno Overload. Now for my schedule and I do hope to see some of you at one of these. OOW 2012 Schedule 10/1 Monday 9:30am – 12:00pm: JDev DemoGrounds 3:15pm – 4:15pm: Intro to Oracle ADF HOL; Marriott Marquis – Salon ¾ 4:00pm – 6:00pm: Cloud DemoGrounds 10/2 Tuesday 9:45am – 12:00pm: JDev DemoGrounds 2:00pm -4:00pm: Cloud DemoGrounds 7:30 – 9:30: Team Dinner @ Donato Enoteca; Redwood City 10/3 Wednesday 10:15pm – 11:15pm: Intro to Oracle ADF HOL; Marriott Marquis – Salon 3/4 1:15pm – 2:15pm: Oracle ADF – Lessons Learned in Real-World Implementations; Moscone South – Room 309This session takes the form of a panel that consists of three customer: Herbalife, Etiya, & Hawaii State Department of Education. During the first part of this session each customer will provide a high-level overview of their application. Following this overview I'll ask questions of the customers specific to their implementations and lessons learned through their development life-cycle. Here's the session abstract: CON3535 - Oracle ADF: Lessons Learned in Real-World Implementations This session profiles and interviews customers that have been successful in delivering compelling applications based on Oracle’s Application Development Framework (Oracle ADF). The session provides an overview of Oracle ADF, and then three customers explain the business drivers for their respective applications and solutions and if possible, provide a demonstration of the applications. Interactive questions posed to the customers after their overview will make for an exciting and dynamic format in which the customers will provide insight into real-world lessons learned in developing with Oracle ADF. 3:30pm – 4:30 pm: Developing Applications for Mobile iOS and Android Devices with Oracle ADF Mobile; Marriott Marquis – Salon 10A 4:30pm – 6:00pm: Meet and Greet ADF Developers/Customers; OTN Lounge 10/4 Thursday 11:15pm – 12:15pm: Intro to Oracle ADF HOL; Marriott Marquis – Salon 3/4 I'm sure our paths will cross at some point during the week and I look forward to seeing you at one of the many events. Enjoy OOW 2012!

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How can I screen clients that try to register multiple times?

- by Aba Dov

My company offers a bonus to every client that register. We would like to prevent people from abusing this by registering several times. we thought about filtering clients by ip (there is a problem with workplaces where all stations have the same ip) cookies (if cookies are not allowed we might lose a client) I would like your opinions on these two methods and will be glad to hear about new ones. thanks

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cannot login to ubuntu 14.04

- by Wallace Cheng

I upgraded my Hp g6 from ubuntu 13.10 to 14.04 yesterday. Now I cannot log into the system using ubuntu/unity But I can still login using i3 windows manager. I checked and found the ubuntu-desktop is broken. I tried to reinstall it, it complained about the dependency issue and broken package. some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help resolve the situation: The following packages have unmet dependencies: ubuntu-desktop : Depends: ubuntu-session but it is not going to be installed Recommends: empathy but it is not going to be installed E: Unable to correct problems, you have held broken packages. when I tried to install ubuntu-session, Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help resolve the situation: The following packages have unmet dependencies: ubuntu-session : Depends: gnome-session-bin (< 3.10) but 3.10.1-0ubuntu1~saucy1 is to be installed Depends: gnome-session-common (= 3.9.90-0ubuntu12) but 3.10.1-0ubuntu1~saucy1 is to be installed E: Unable to correct problems, you have held broken packages. I tried sudo apt-get install -f but it does not work Any help would be highly appreciated. Thanks.

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MINSCN?Cache Fusion Read Consistent

- by Liu Maclean(???)

????? ???Ask Maclean Home ??? RAC ? Past Image PI????, ?????????,???11.2.0.3 2 Node RAC??????????: SQL> select * from v$version; BANNER -------------------------------------------------------------------------------- Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production PL/SQL Release 11.2.0.3.0 - Production CORE 11.2.0.3.0 Production TNS for Linux: Version 11.2.0.3.0 - Production NLSRTL Version 11.2.0.3.0 - Production SQL> select * from global_name; GLOBAL_NAME -------------------------------------------------------------------------------- www.oracledatabase12g.com SQL> drop table test purge; Table dropped. SQL> alter system flush buffer_cache; System altered. SQL> create table test(id number); insert into test values(1); insert into test values(2); commit; /* ???? rowid??TEST????2????????? */ select dbms_rowid.rowid_block_number(rowid),dbms_rowid.rowid_relative_fno(rowid) from test; DBMS_ROWID.ROWID_BLOCK_NUMBER(ROWID) DBMS_ROWID.ROWID_RELATIVE_FNO(ROWID) ------------------------------------ ------------------------------------ 89233 1 89233 1 SQL> alter system flush buffer_cache; System altered. Instance 1 Session A ??UPDATE??: SQL> update test set id=id+1 where id=1; 1 row updated. Instance 1 Session B ??x$BH buffer header?? ?? ??Buffer??? SQL> select state,cr_scn_bas from x$bh where file#=1 and dbablk=89233 and state!=0; STATE CR_SCN_BAS ---------- ---------- 1 0 3 1227595 X$BH ??? STATE????Buffer???, ???????: STATE NUMBER KCBBHFREE 0 buffer free KCBBHEXLCUR 1 buffer current (and if DFS locked X) KCBBHSHRCUR 2 buffer current (and if DFS locked S) KCBBHCR 3 buffer consistant read KCBBHREADING 4 Being read KCBBHMRECOVERY 5 media recovery (current & special) KCBBHIRECOVERY 6 Instance recovery (somewhat special) ????????????? : state =1 Xcurrent ? state=2 Scurrent ? state=3 CR ??? Instance 2 ?? ????????????? ,???? gc current block 2 way ??Current Block ??? Instance 2, ?? Instance 1 ??”Current Block” Convert ? Past Image: Instance 2 Session C SQL> update test set id=id+1 where id=2; 1 row updated. Instance 2 Session D SQL> select state,cr_scn_bas from x$bh where file#=1 and dbablk=89233 and state!=0; STATE CR_SCN_BAS ---------- ---------- 1 0 3 1227641 3 1227638 STATE =1 ?Xcurrent block???? Instance 2 , ??? Instance 1 ??? GC??: Instance 1 Session B SQL> select state,cr_scn_bas from x$bh where file#=1 and dbablk=89233 and state!=0; STATE CR_SCN_BAS ---------- ---------- 3 1227641 3 1227638 8 0 3 1227595 ???????, ??????Instance 1??session A????TEST??SELECT??? ,????? 3? State=3?CR ? ??????1?: Instance 1 session A ?????UPDATE? session SQL> alter session set events '10046 trace name context forever,level 8:10708 trace name context forever,level 103: trace[rac.*] disk high'; Session altered. SQL> select * from test; ID ---------- 2 2 select state,cr_scn_bas from x$bh where file#=1 and dbablk=89233 and state!=0; STATE CR_SCN_BAS ---------- ---------- 3 1227716 3 1227713 8 0 ?????????v$BH ????CR????,?????SELECT??? CR????????,???????? ?????????? ??X$BH?????? , ?????CR??SCN Version???: 1227641?1227638?1227595, ?SELECT?????? 2???SCN version?CR? 1227716? 1227713 ???, Oracle????????? ?????????SELECT??????event 10708? rac.*???TRACE,??????TRACE??: PARSING IN CURSOR #140444679938584 len=337 dep=1 uid=0 oct=3 lid=0 tim=1335698913632292 hv=3345277572 ad='bc0e68c8' sqlid='baj7tjm3q9sn4' SELECT /* OPT_DYN_SAMP */ /*+ ALL_ROWS IGNORE_WHERE_CLAUSE NO_PARALLEL(SAMPLESUB) opt_param('parallel_execution_enabled', 'false') NO_PARALLEL_INDEX(SAMPLESUB) NO_SQL_TUNE */ NVL(SUM(C1),0), NVL(SUM(C2),0) FROM (SELECT /*+ NO_PARALLEL("TEST") FULL("TEST") NO_PARALLEL_INDEX("TEST") */ 1 AS C1, 1 AS C2 FROM "SYS"."TEST" "TEST") SAMPLESUB END OF STMT PARSE #140444679938584:c=1000,e=27630,p=0,cr=0,cu=0,mis=1,r=0,dep=1,og=1,plh=1950795681,tim=1335698913632252 EXEC #140444679938584:c=0,e=44,p=0,cr=0,cu=0,mis=0,r=0,dep=1,og=1,plh=1950795681,tim=1335698913632390 *** 2012-04-29 07:28:33.632 kclscrs: req=0 block=1/89233 *** 2012-04-29 07:28:33.632 kclscrs: bid=1:3:1:0:7:80:1:0:4:0:0:0:1:2:4:1:26:0:0:0:70:1a:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:4:3:2:1:2:0:3f:0:1c:86:2d:4:0:0:0:0:a2:3c:7c:b:70:1a:0:0:0:0:1:0:7a:f8:76:1d:1:2:dc:5:a9:fe:17:75:0:0:0:0:0:0:0:0:0:0:0:0:63:e5:0:0:0:0:0:0:10:0:0:0 2012-04-29 07:28:33.632578 : kjbcrc[0x15c91.1 76896.0][9] 2012-04-29 07:28:33.632616 : GSIPC:GMBQ: buff 0xba1e8f90, queue 0xbb79f278, pool 0x60013fa0, freeq 1, nxt 0xbb79f278, prv 0xbb79f278 2012-04-29 07:28:33.632634 : kjbmscrc(0x15c91.1)seq 0x2 reqid=0x1c(shadow 0xb4bb4458,reqid x1c)mas@2(infosz 200)(direct 1) 2012-04-29 07:28:33.632654 : kjbsentscn[0x0.12bbc1][to 2] 2012-04-29 07:28:33.632669 : GSIPC:SENDM: send msg 0xba1e9000 dest x20001 seq 24026 type 32 tkts xff0000 mlen x17001a0 2012-04-29 07:28:33.633385 : GSIPC:KSXPCB: msg 0xba1e9000 status 30, type 32, dest 2, rcvr 1 *** 2012-04-29 07:28:33.633 kclwcrs: wait=0 tm=689 *** 2012-04-29 07:28:33.633 kclwcrs: got 1 blocks from ksxprcv WAIT #140444679938584: nam='gc cr block 2-way' ela= 689 p1=1 p2=89233 p3=1 obj#=76896 tim=1335698913633418 2012-04-29 07:28:33.633490 : kjbcrcomplete[0x15c91.1 76896.0][0] 2012-04-29 07:28:33.633510 : kjbrcvdscn[0x0.12bbc1][from 2][idx 2012-04-29 07:28:33.633527 : kjbrcvdscn[no bscn <= rscn 0x0.12bbc1][from 2] *** 2012-04-29 07:28:33.633 kclwcrs: req=0 typ=cr(2) wtyp=2hop tm=689 ??TRACE???? ?????????TEST??????, ???????Dynamic Sampling?????,???????TEST?? CR???,???????’gc cr block 2-way’ ??: 2012-04-29 07:28:33.632654 : kjbsentscn[0x0.12bbc1][to 2] 12bbc1= 1227713 ???X$BH????CR???,kjbsentscn[0x0.12bbc1][to 2] ????? ? Instance 2 ???SCN=12bbc1=1227713 DBA=0x15c91.1 76896.0 ? CR Request(obj#=76896) ??kjbrcvdscn????? [no bscn <= rscn 0x0.12bbc1][from 2] ,??? ??receive? SCN Version =12bbc1 ???Best Version CR Server Arch ??????????????????SELECT??: PARSING IN CURSOR #140444682869592 len=18 dep=0 uid=0 oct=3 lid=0 tim=1335698913635874 hv=1689401402 ad='b1a188f0' sqlid='c99yw1xkb4f1u' select * from test END OF STMT PARSE #140444682869592:c=4999,e=34017,p=0,cr=7,cu=0,mis=1,r=0,dep=0,og=1,plh=1357081020,tim=1335698913635870 EXEC #140444682869592:c=0,e=23,p=0,cr=0,cu=0,mis=0,r=0,dep=0,og=1,plh=1357081020,tim=1335698913635939 WAIT #140444682869592: nam='SQL*Net message to client' ela= 7 driver id=1650815232 #bytes=1 p3=0 obj#=0 tim=1335698913636071 *** 2012-04-29 07:28:33.636 kclscrs: req=0 block=1/89233 *** 2012-04-29 07:28:33.636 kclscrs: bid=1:3:1:0:7:83:1:0:4:0:0:0:1:2:4:1:26:0:0:0:70:1a:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:4:3:2:1:2:0:2:0:1c:86:2d:4:0:0:0:0:a2:3c:7c:b:70:1a:0:0:0:0:1:0:7d:f8:76:1d:1:2:dc:5:a9:fe:17:75:0:0:0:0:0:0:0:0:0:0:0:0:63:e5:0:0:0:0:0:0:10:0:0:0 2012-04-29 07:28:33.636209 : kjbcrc[0x15c91.1 76896.0][9] 2012-04-29 07:28:33.636228 : GSIPC:GMBQ: buff 0xba0e5d50, queue 0xbb79f278, pool 0x60013fa0, freeq 1, nxt 0xbb79f278, prv 0xbb79f278 2012-04-29 07:28:33.636244 : kjbmscrc(0x15c91.1)seq 0x3 reqid=0x1d(shadow 0xb4bb4458,reqid x1d)mas@2(infosz 200)(direct 1) 2012-04-29 07:28:33.636252 : kjbsentscn[0x0.12bbc4][to 2] 2012-04-29 07:28:33.636358 : GSIPC:SENDM: send msg 0xba0e5dc0 dest x20001 seq 24029 type 32 tkts xff0000 mlen x17001a0 2012-04-29 07:28:33.636861 : GSIPC:KSXPCB: msg 0xba0e5dc0 status 30, type 32, dest 2, rcvr 1 *** 2012-04-29 07:28:33.637 kclwcrs: wait=0 tm=865 *** 2012-04-29 07:28:33.637 kclwcrs: got 1 blocks from ksxprcv WAIT #140444682869592: nam='gc cr block 2-way' ela= 865 p1=1 p2=89233 p3=1 obj#=76896 tim=1335698913637294 2012-04-29 07:28:33.637356 : kjbcrcomplete[0x15c91.1 76896.0][0] 2012-04-29 07:28:33.637374 : kjbrcvdscn[0x0.12bbc4][from 2][idx 2012-04-29 07:28:33.637389 : kjbrcvdscn[no bscn <= rscn 0x0.12bbc4][from 2] *** 2012-04-29 07:28:33.637 kclwcrs: req=0 typ=cr(2) wtyp=2hop tm=865 ???, “SELECT * FROM TEST”??????’gc cr block 2-way’??:2012-04-29 07:28:33.637374 : kjbrcvdscn[0x0.12bbc4][from 2][idx 2012-04-29 07:28:33.637389 : kjbrcvdscn[no bscn ??Foreground Process? Remote LMS??got?? SCN=1227716 Version?CR, ??? ?????X$BH ?????scn??? ??????????Instance 1????2?SCN???CR?, ???????????Instance 1 Buffer Cache?? ??SCN Version ???CR ??????? ?????????: SQL> alter system set "_enable_minscn_cr"=false scope=spfile; System altered. SQL> alter system set "_db_block_max_cr_dba"=20 scope=spfile; System altered. SQL> startup force; ORA-32004: obsolete or deprecated parameter(s) specified for RDBMS instance ORACLE instance started. Total System Global Area 1570009088 bytes Fixed Size 2228704 bytes Variable Size 989859360 bytes Database Buffers 570425344 bytes Redo Buffers 7495680 bytes Database mounted. Database opened. ???? “_enable_minscn_cr”=false ? “_db_block_max_cr_dba”=20 ???RAC????, ??????: ?Instance 2 Session C ?update??????? ?????Instance 1 ????? ,????Instance 1?Request CR SQL> update test set id=id+1 where id=2; -- Instance 2 1 row updated. SQL> select * From test; -- Instance 1 ID ---------- 1 2 ??? Instance 1? X$BH?? select state,cr_scn_bas from x$bh where file#=1 and dbablk=89233 and state!=0; STATE CR_SCN_BAS ---------- ---------- 3 1273080 3 1273071 3 1273041 3 1273039 8 0 SQL> update test set id=id+1 where id=3; 1 row updated. SQL> select * From test; ID ---------- 1 2 SQL> select state,cr_scn_bas from x$bh where file#=1 and dbablk=89233 and state!=0; STATE CR_SCN_BAS ---------- ---------- 3 1273091 3 1273080 3 1273071 3 1273041 3 1273039 8 0 ................... SQL> select state,cr_scn_bas from x$bh where file#=1 and dbablk=89233 and state!=0; STATE CR_SCN_BAS ---------- ---------- 3 1273793 3 1273782 3 1273780 3 1273769 3 1273734 3 1273715 3 1273691 3 1273679 3 1273670 3 1273643 3 1273635 3 1273623 3 1273106 3 1273091 3 1273080 3 1273071 3 1273041 3 1273039 3 1273033 19 rows selected. SQL> select state,cr_scn_bas from x$bh where file#=1 and dbablk=89233 and state!=0; STATE CR_SCN_BAS ---------- ---------- 3 1274993 ????? ???? “_enable_minscn_cr”(enable/disable minscn optimization for CR)=false ? “_db_block_max_cr_dba”=20 (Maximum Allowed Number of CR buffers per dba) 2? ??? ????? Instance 1 ??????????? ?? 19????CR?? “_enable_minscn_cr”?11g??????????,???Oracle????CR????SCN,?Foreground Process Receive????????????(SCN??)?SCN Version CR Block??????CBC?? SCN??????CR? , ?????????Buffer Cache??????? ????SCN Version?CR????,????? ?????????? ?????Snap_Scn ?? SCN?? ?????????Current SCN, ??????CR??????????????????????, ????Buffer Cache? ?????????? CR?????????, ?????? “_db_block_max_cr_dba” ???????, ???????????20 ,??????Buffer Cache?????19????CR?; ???”_db_block_max_cr_dba” ???????6 , ?????Buffer cache????????CR ???????6?? ??”_enable_minscn_cr” ??CR???MINSCN ??????, ?????????CR???????, ????? Foreground Process??????CR Request , ?? Holder Instance LMS ?build?? BEST CR ??, ?????????

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Outstanding SQL Saturday

- by merrillaldrich

I had the privilege to attend the SQL Saturday held in Redmond today, and it was really outstanding. Among the many sessions, I especially enjoyed and took a lot of useful information away from Greg Larsen’s Dynamic Management Views session, Kalen Delaney’s Compression Session – I am planning to implement 2008 Enterprise compression on my company’s data warehouse later this year – and Remus Rusanu’s session on Service Broker to process NAP data. I want to send out heartfelt thanks to the generous...(read more)

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Bash command history not working

- by user12663

The command history between sessions is not getting saved. I'm using guake and the history for the session is working fine. I noticed that .bash_history had some commands I executed in sudo -s mode and tried the same again and all the commands while in the session got saved so I tried chmod 777 .bash_history Now the old commands appear at the start of a session but no new commands are getting saved Thanx in advance

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Outstanding SQL Saturday

- by merrillaldrich

I had the privilege to attend the SQL Saturday held in Redmond today, and it was really outstanding. Among the many sessions, I especially enjoyed and took a lot of useful information away from Greg Larsen’s Dynamic Management Views session, Kalen Delaney’s Compression Session – I am planning to implement 2008 Enterprise compression on my company’s data warehouse later this year – Remus Rusanu’s session on Service Broker to process NAP data, and Matt Masson’s presentation on high performance SSIS...(read more)

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From The OU Classrooms...

- by rajeshr

No excuses for not doing this systematically, and I'm trying my best to break this bad habit of bulk uploads of class photographs and do it regularly instead. But for the time being, please forgive my laziness and live by my mass introduction of all fun loving, yet talented folks whom I met in the OU classrooms during the last three months or so through these picture essay that follow. It's unfortunate, I don't get to do this for my Live Virtual Classes for obvious reason,but let me take a moment to thank them all as well for choosing OU programs on various products. Thanks again to each one for memorable moments in the OU classrooms: Pillar Axiom MaxRep session at Bangkok. For detailed information on the OU course on Pillar Axiom Max Rep, access this page. Pillar Axiom SAN Administration Session at Bangkok. Know more about the product here. Details on the Pillar Axiom training program from Oracle University can be found here. Oracle Solaris ZFS Administration & Oracle Solaris Containers session at Hyderabad. Read more about ZFS here. Gain information on Solaris Containers by going here. Oracle University courses on Solaris 10 and its features can be viewed at this page. Oracle Solaris Cluster program at Hyderabad. Here's the OU landing page for the training programs on Oracle Solaris Cluster. Oracle Solaris 11 Administration Session at Bangalore. If you are interested to get trained on Solaris 11, get more details at this webpage. Sun Identity Manager Deployment Fundamentals session at Bangalore. The product is n.k.a Oracle Waveset IDM. Click here to get detailed description on this fabulous hands on training program. With Don Kawahigashi at Taipei for Pillar Axiom Storage training.

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How do I capture a 10053 trace for a SQL statement called in a PL/SQL package?

- by Maria Colgan

Traditionally if you wanted to capture an Optimizer trace (10053) for a SQL statement you would issue an alter session command to switch on a 10053 trace for that entire session, and then issue the SQL statement you wanted to capture the trace for. Once the statement completed you would exit the session to disable the trace. You would then look in the USER_DUMP_DEST directory for the trace file. But what if the SQL statement you were interested in was actually called as part of a PL/SQL package? Oracle Database 11g, introduced a new diagnostic events infrastructure, which greatly simplifies the task of generating a 10053 trace for a specific SQL statement in a PL/SQL package. All you will need to know is the SQL_ID for the statement you are interested in. Instead of turning on the trace event for the entire session you can now switch it on for a specific SQL ID. Oracle will then capture a 10053 trace for the corresponding SQL statement when it is issued in that session. Remember the SQL statement still has to be hard parsed for the 10053 trace to be generated. Let's begin our example by creating a PL/SQL package called 'cal_total_sales'. The SQL statement we are interested in is the same as the one in our original example, SELECT SUM(AMOUNT_SOLD) FROM SALES WHERE CUST_ID = :B1. We need to know the SQL_ID of this SQL statement to set up the trace, and we can find in V$SQL. We now have everything we need to generate the trace. Finally you would look in the USER_DUMP_DEST directory for the trace file with the name you specified. Maria Colgan+

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Oracle OpenWorld Key Financials Sessions

- by Theresa Hickman

Oracle OpenWorld is just around the corner on Sept. 19-23, 2010 at Moscone Center in San Francisco, California. There will be about 70 financial sessions across all the financials product lines: e-Business Suite, JD Edwards, PeopleSoft, and Fusion. I wanted to highlight some of the key financials sessions: Oracle E-Business Financials: Vision, Release Overview, and Product Roadmap: This session provides a comprehensive overview of Oracle's product strategy for Oracle Financials. This cornerstone session for Oracle Financials includes customer successes with Oracle Financials Release 12.1. Value of Upgrading to Release 12.1 for Oracle Financials: This session provides best practices and lessons learned from customers that have already upgraded to Release 12 and 12.1. PeopleSoft Financial Management Solutions High-Value Roadmap into Release 9.2: This session reviews the roadmap candidate ideas for Release 9.2 and discusses PeopleSoft Financials integration with Oracle solutions, such as Hyperion, Governance, Risk, and Compliance (GRC), and business intelligence products. Oracle Fusion Financials Overview: Terrance Wampler, the VP of Financials Product Strategy, and Rondy Ng, Group VP of Financial Applications Development, will discuss the key product differentiators to help customers understand the value that Oracle Fusion Financials can bring to their organizations. Answers to the Top 10 Questions About Oracle Fusion Financials: This session talks about how Oracle Fusion Financials can coexist with customers' existing investments in e-Busines Suite, PeopleSoft, and JD Edwards. It will also highlight the advantages of the Oracle Fusion technology stack, migration of existing applications to Oracle Fusion, and the role of codevelopment partners, such as Infosys. The panel will also accept questions from the attendees in order to address other questions customers may have about Oracle Fusion. In addition, the following sessions will discuss how customers who are currently using JD Edwards, PeopleSoft, and e-Business Suite can coexist with Fusion Financials without major disruption of existing applications. Customers will learn how they can adopt portions of Oracle Fusion Financials to deliver value-add functionality while maintaining and extending their current deployment of Oracle applications. Understanding Oracle Fusion Financials for JD Edwards Customers Understanding Oracle Fusion Financials for PeopleSoft Customers Understanding Oracle Fusion Financials for Oracle E-Business Suite Customers For more information and to register for OpenWorld, see www.oracle.com/openworld.

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How can I run unity with Slim with sound

- by Samir

I'm trying to start the unity environment from slim display manager, everything goes fine, except by the sound that don't work, the device just dont appear in the device list I already changed the slim config file to start with this code below, but it didnt solve the problem.... login_cmd exec ck-launch-session dbus-launch /bin/bash -login /etc/X11/Xsession %session I believe the it is related with some thing that the gdm/lighdm start with the session and slim dont do that When I use the lighdm or gdm to start the environment everything works fine

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IIM Calcutta – EPBM 14 – Campus Visit – Day 2 – IS_Strategy and Internationa

- by Ram Shankar Yadav

Hey Guys~ So the second day of the week starts, and we were all set for coming sessions on : - IS & Strategy and, - Changing Geo-politics & Business Environment We did our daily chores, rushed for breakfast, and reached Auditorioum, almost on time. IS & Strategy session was quite informative and interactive, and the prof. gave lot of examples, and it really gives us solid understanding by relating things with examples. Then goes the lunch, but the IS session over shoot for 15 minutes so our idea of taking a nap in lunch was not working out, but anyway we did our lunch and tried to sleep for 10-15 minutes. We got back and session on International Business started. Frankly, it’s a great topic, but we had tough time to be attentive, and it was hard to keep ourselves awake :P Anyhow the session came to an end, and we went to Library, and roamed around campus. Got back, had dinner, and went for a night walk, and ice-cream party. Lastly we did went to the platform inside the lake, and had a gag session, got back and did “ITC eChaupal” case study. We have planned to visit Kali Mandir tomorrow, so I’ve to sleep for few hours…GN! Stay tuned for more… ram :)

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nvidia segfault crashes XServer (12.04 fresh install)

- by Sébastien GILLES

I am on a fresh install of 12.04, and my video card is a Quadro FX 570, which appears to be supported (see output of unity_support_test below). But my Xserver crashes randomly and causes my session to just shutdown and bring me back to the logging screen. This happens several times per hour. After checking syslog it that a segfault in the nvidia driver is the cause of the problem: Jun 13 11:14:17 lima kernel: [86569.828982] Xorg[17940]: segfault at ffebeb69 ip b4c8f7aa sp bf8076dc error 4 in nvidia_drv.so[b47a7000+706000] Jun 13 11:14:36 lima gnome-session[18119]: Gdk-WARNING: gnome-session: Fatal IO error 11 (Ressource temporairement non disponible) on X server :3.#012 The funny thing is that as I was reporting this bug, my xserver crashed again (!) and this time I got another error message: Jun 13 11:29:39 lima kernel: [87491.106441] NVRM: Xid (0000:02:00): 6, PE0001 Jun 13 11:29:39 lima gnome-session[26493]: Gdk-WARNING: gnome-session: Fatal IO error 11 (Ressource temporairement non disponible) on X server :4.#012 Any idea as to what can be the problem given that i am on a fresh install with a supported video card ? Sébastien == Output of unity_support_test $ /usr/lib/nux/unity_support_test -p OpenGL vendor string: NVIDIA Corporation OpenGL renderer string: Quadro FX 570/PCIe/SSE2 OpenGL version string: 3.3.0 NVIDIA 295.40 Not software rendered: yes Not blacklisted: yes GLX fbconfig: yes GLX texture from pixmap: yes GL npot or rect textures: yes GL vertex program: yes GL fragment program: yes GL vertex buffer object: yes GL framebuffer object: yes GL version is 1.4+: yes Unity 3D supported: yes

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'sudo su -' vs 'sudo -i' vs 'sudo /bin/bash' - when does it matter which is used, or does it matter at all?

- by Paul

When I'm doing something that requires root be typed in dozens of times in a row, I prefer to switch my session to a root session. In the various tutorials and instructions I have used on the Internet, I see sudo su, sudo su -, sudo -i and sudo /bin/bash being used to open a root session, but I'm not clear on the difference between these and when or if that difference matters. Can someone clear this up for me?

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Serving images from different domain

- by Tom Gullen

Google audit: Serve static content from a cookieless domain (15) 2.65KB of cookies were sent with the following static resources. Serve these static resources from a domain that does not set cookies: If my domain is widgets.com, should I set up a img.widgets.com that servers these resources? How beneficial is this? Edit I setup img.widgets.com to serve images from, and changed all images to this URL. But I still get that message?

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SQL Rally Relational Database Design Pre-Con Preview

- by drsql

On May 9, 2012, I will be presenting a pre-con session at the SQL Rally in Dallas, TX on relational database design. The fact is, database design is a topic that demands more than a simple one hour session to really do it right. So in my Relational Database Design Workshop, we will have seven times the amount of time in the typical session, giving us time to cover our topics in a bit more detail, look at a lot more designs/code, and even get some time to do some design as a group. Our topics will...(read more)

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Website cookie scanner

- by user359650

I'm in charge of a relatively big corporate website (circa 95K pages) and need to perform a cookie audit. I can see cookies issued on a per-page basis with Chrome or Firefox console, but given the amount of pages I need a tool to automate the process. I tried to google for website cookie scanner but my search was unfruitful and found: either online tools which only scan the home page paid services (ex1, ex2) Does any of you know about a tool to scan an entire website and generate a report showing which cookies are being used and which page set them?

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Xubuntu 14.04 black screen after monitor off/on

- by Sampo Smolander

I have a HP desktop machine with Ubuntu 14.04, with also Xubuntu and Gnome desktops installed. I mostly use the Xubuntu session. When using the Xubuntu session, when I power off my monitor, and power it back on, the screen stays black and I cannot do any work. With ctrl-alt-f6 I can open another virtual terminal, and then the screen works again, but if I to go back to the desktop session with ctrl-alt-f7, all I have is a black screen. But, if I login to Unity (the Ubuntu default session), or to Gnome, and turn the monitor off and back on, everything works ok. Also, if I log out, and while in the lightdm greeter, turn the monitor off and back on, everything works ok. What could be the cause for this, and how to fix this?

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