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Which useful alternative control structures do you know?

- by bigown

Similar question was closed on SO. Sometimes when we're programming, we find that some particular control structure would be very useful to us, but is not directly available in our programming language. What alternative control structures do you think are a useful way of organizing computation? The goal here is to get new ways of thinking about structuring code, in order to improve chunking and reasoning. You can create a wishful syntax/semantic not available now or cite a less known control structure on an existent programming language. Answers should give ideas for a new programming language or enhancing an actual language. Think of this as brainstorming, so post something you think is a crazy idea but it can be viable in some scenario. It's about imperative programming.

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Know More About Oracle Row Lock

- by Liu Maclean(???)

??????Oracle??????????row lock,??ORACLE????????????????????,row lock???????????????????????????????,??Server Process?pin????block buffer????????? ????????,?process A ??update???????? Z?????????, ???????rollback???commit;??Process B??????DML??, ???????rowid???? Z???, ???????????process A????????ITL???,????????cleanout??,????????row???????????commit, ???????Process B????”enq: TX – row lock contention”??????? ????Process B????????????? ?????????Process A???????row,??Process B???????”enq: TX – row lock contention”???? ???????? ????????: SESSION A: SQL> select * from v$version; BANNER ---------------------------------------------------------------- Oracle Database 10g Enterprise Edition Release 10.2.0.5.0 - 64bi PL/SQL Release 10.2.0.5.0 - Production CORE 10.2.0.5.0 Production TNS for Linux: Version 10.2.0.5.0 - Production NLSRTL Version 10.2.0.5.0 - Production SQL> select * from global_name; GLOBAL_NAME -------------------------------------------------------------------------------- www.oracledatabase12g.com SQL> create table maclean_lock(t1 int); Table created. SQL> insert into maclean_lock values (1); 1 row created. SQL> commit; Commit complete. SQL> select dbms_rowid.rowid_block_number(rowid),dbms_rowid.rowid_relative_fno(rowid) from maclean_lock; DBMS_ROWID.ROWID_BLOCK_NUMBER(ROWID) DBMS_ROWID.ROWID_RELATIVE_FNO(ROWID) ------------------------------------ ------------------------------------ 67642 1 SQL> select distinct sid from v$mystat; SID ---------- 142 SQL> select pid,spid from v$process where addr = ( select paddr from v$session where sid=(select distinct sid from v$mystat)); PID SPID ---------- ------------ 17 15636 ??SESSION A ????savepoint ,?update ????????? SQL> savepoint NONLOCK; Savepoint created. SQL> select * From v$Lock where sid=142; no rows selected SQL> set linesize 140 pagesize 1400 SQL> update maclean_lock set t1=t1+2; 1 row updated. SQL> select * From v$Lock where sid=142; ADDR KADDR SID TY ID1 ID2 LMODE REQUEST CTIME BLOCK ---------------- ---------------- ---------- -- ---------- ---------- ---------- ---------- ---------- ---------- 0000000091FC69F0 0000000091FC6A18 142 TM 55829 0 3 0 6 0 00000000914B4008 00000000914B4040 142 TX 393232 609 6 0 6 0 SQL> select dump(3,16) from dual; DUMP(3,16) -------------------------------------------------------------------------------- Typ=2 Len=2: c1,4 ALTER SYSTEM DUMP DATAFILE 1 BLOCK 67642; Object id on Block? Y seg/obj: 0xda16 csc: 0x00.234718 itc: 2 flg: O typ: 1 - DATA fsl: 0 fnx: 0x0 ver: 0x01 Itl Xid Uba Flag Lck Scn/Fsc 0x01 0x000a.00f.000001e0 0x00800075.02a6.29 C--- 0 scn 0x0000.00234711 0x02 0x0007.018.000001fe 0x0080065c.017a.02 ---- 1 fsc 0x0000.00000000 data_block_dump,data header at 0x81d185c =============== tsiz: 0x1fa0 hsiz: 0x14 pbl: 0x081d185c bdba: 0x0041083a 76543210 flag=-------- ntab=1 nrow=1 frre=-1 fsbo=0x14 fseo=0x1f9a avsp=0x1f83 tosp=0x1f83 0xe:pti[0] nrow=1 offs=0 0x12:pri[0] offs=0x1f9a block_row_dump: tab 0, row 0, @0x1f9a tl: 6 fb: --H-FL-- lb: 0x2 cc: 1 col 0: [ 2] c1 04 end_of_block_dump ?? BLOCK DUMP ???? ??????XID=0x0007.018.000001fe ?transaction?? lb:0x1 ??SESSION B ,?????UPDATE?? ???enq: TX - row lock contention ?? SQL> select distinct sid from v$mystat; SID ---------- 140 SQL> select pid,spid from v$process where addr = ( select paddr from v$session where sid=(select distinct sid from v$mystat)); PID SPID ---------- ------------ 24 15652 SQL> alter system set "_trace_events"='10000-10999:255:24'; System altered. SQL> update maclean_lock set t1=t1+2; select * From v$Lock where sid=142 or sid=140 order by sid; SESSION C: SQL> select * From v$Lock where sid=142 or sid=140 order by sid; ADDR KADDR SID TY ID1 ID2 LMODE REQUEST CTIME BLOCK ---------------- ---------------- ---------- -- ---------- ---------- ---------- ---------- ---------- ---------- 0000000091FC6B10 0000000091FC6B38 140 TM 55829 0 3 0 84 0 00000000924F4A58 00000000924F4A78 140 TX 458776 510 0 6 84 0 00000000914B51E8 00000000914B5220 142 TX 458776 510 6 0 312 1 0000000091FC69F0 0000000091FC6A18 142 TM 55829 0 3 0 312 0 ???? SESSION B SID=140 ?SESSION A ?TX ENQUEUE ?X mode?REQUEST SQL> oradebug dump systemstate 266; Statement processed. SESSION B waiter's enqueue lock SO: 0x924f4a58, type: 5, owner: 0x92bb8dc8, flag: INIT/-/-/0x00 (enqueue) TX-00070018-000001FE DID: 0001-0018-00000022 lv: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 res_flag: 0x6 req: X, lock_flag: 0x0, lock: 0x924f4a78, res: 0x925617c0 own: 0x92b76be0, sess: 0x92b76be0, proc: 0x92a737a0, prv: 0x925617e0 TX-00070018-000001FE=> TX 458776 510 SESSION A owner's enqueue lock SO: 0x914b51e8, type: 40, owner: 0x92b796d0, flag: INIT/-/-/0x00 (trans) flg = 0x1e03, flg2 = 0xc0000, prx = 0x0, ros = 2147483647 bsn = 0xed5 bndsn = 0xee7 spn = 0xef7 efd = 3 file:xct.c lineno:1179 DID: 0001-0011-000000C2 parent xid: 0x0000.000.00000000 env: (scn: 0x0000.00234718 xid: 0x0007.018.000001fe uba: 0x0080065c.017a.02 statement num=0 parent xid: xid: 0x0000.000.00000000 scn: 0x00 00.00234718 0sch: scn: 0x0000.00000000) cev: (spc = 7818 arsp = 914e8310 ubk tsn: 1 rdba: 0x0080065c useg tsn: 1 rdba: 0x00800069 hwm uba: 0x0080065c.017a.02 col uba: 0x00000000.0000.00 num bl: 1 bk list: 0x91435070) cr opc: 0x0 spc: 7818 uba: 0x0080065c.017a.02 (enqueue) TX-00070018-000001FE DID: 0001-0011-000000C2 lv: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 res_flag: 0x6 mode: X, lock_flag: 0x0, lock: 0x914b5220, res: 0x925617c0 own: 0x92b796d0, sess: 0x92b796d0, proc: 0x92a6ffd8, prv: 0x925617d0 xga: 0x8b7c6d40, heap: UGA Trans IMU st: 2 Pool index 65535, Redo pool 0x914b58d0, Undo pool 0x914b59b8 Redo pool range [0x86de640 0x86de640 0x86e0e40] Undo pool range [0x86dbe40 0x86dbe40 0x86de640] ---------------------------------------- SO: 0x91435070, type: 39, owner: 0x914b51e8, flag: -/-/-/0x00 (List of Blocks) next index = 1 index itli buffer hint rdba savepoint ----------------------------------------------------------- 0 2 0x647f1fc8 0x41083a 0xee7 ?SESSION A? ROLLBACK ?savepoint: SQL> rollback to NONLOCK; Rollback complete. ????savepoint ??update??????? ??UPDATE???????? ROLLBACK: SQL> select * From v$Lock where sid=142 or sid=140; ADDR KADDR SID TY ID1 ID2 LMODE REQUEST CTIME BLOCK ---------------- ---------------- ---------- -- ---------- ---------- ---------- ---------- ---------- ---------- 00000000924F4A58 00000000924F4A78 140 TX 458776 510 0 6 822 0 0000000091FC6B10 0000000091FC6B38 140 TM 55829 0 3 0 822 0 00000000914B51E8 00000000914B5220 142 TX 458776 510 6 0 1050 1 ???? SESSION A 142 ???SAVEPOINT ???????TM LOCK ????? ROLLBACK TO SAVEPOINT?????SESSION???TX LOCK!!!! ??????SESSION 142???TX ID1=458776 ID2=510, ????ROLLBACK TO SAVEPOINT?????????ABORT TRANSACTION ?? SESSION B SID=140?? SESSION A ?? , ?????????SESSION B? update???HANG?? ?????????CACHE?????: Object id on Block? Y seg/obj: 0xda16 csc: 0x00.2347b7 itc: 2 flg: O typ: 1 - DATA fsl: 0 fnx: 0x0 ver: 0x01 Itl Xid Uba Flag Lck Scn/Fsc 0x01 0x000a.00f.000001e0 0x00800075.02a6.29 C--- 0 scn 0x0000.00234711 0x02 0x0000.000.00000000 0x00000000.0000.00 ---- 0 fsc 0x0000.00000000 data_block_dump,data header at 0x745d85c =============== tsiz: 0x1fa0 hsiz: 0x14 pbl: 0x0745d85c bdba: 0x0041083a 76543210 flag=-------- ntab=1 nrow=1 frre=-1 fsbo=0x14 fseo=0x1f9a avsp=0x1f83 tosp=0x1f83 0xe:pti[0] nrow=1 offs=0 0x12:pri[0] offs=0x1f9a block_row_dump: tab 0, row 0, @0x1f9a tl: 6 fb: --H-FL-- lb: 0x0 cc: 1 col 0: [ 2] c1 02 end_of_block_dump ???? ITL=0x02? ?????????,col 0: [ 2] c1 02 ????????? ?????????SESSION D ,??????row lock?? ?UPDATE???????? SESSION D: SQL> update maclean_lock set t1=t1+2; 1 row updated. SQL> rollback; Rollback complete. ??SESSION B ??????????? ?????ORACLE????????, ??????????? TX lock?? row lock , ????????2??? row lock?????????, ?TX lock????????ENQUEUE LOCK???? ?????????PROCESS K?DML???????????????????????,??????????TX LOCK, ????PROCESS Z?????????????????????????ROW LOCK????????, ???????OLTP?????????????????????? ??ROW LOCK?Release ??????TX?ENQUEUE LOCK,?????????Process J ????????????, Process K??????????? ,Process K?????????,???row piece?lb??0x0 ,?????ITL, Process Z???ITL???????Process J????XID,?????Process J?????TX lock, PROCESS K ???TX resource?Enqueue Waiter Linked List?????X mode(exclusive)?enqueue lock? ???Process J??TX lock?,Process J?????TX resource?Enqueue Waiter Linked List ???Process K??????,??POST?????Process K? TX lock??????, ???????row lock???????,????????? ?????????? ?????: SESSION A ???PID =17 ?????????????????? SESSION B ???PID =24 ??????? "_trace_events"='10000-10999:255:24'; KST trace ??????? Server Process??? SESSION A PID=17 ?? acqure?SX mode???TM Lock ,?? ????Transaction?????UNDO SEGMENT 7,???XID 7.24.510, ?acquire ?X mode? TX-00070018-000001fe ? ?????? 00070018-000001fe ???? 7- 24 - 510? XID ? 781F4B8A:007A569C 17 142 10704 83 ksqgtl: acquire TM-0000da15-00000000 mode=SX flags=GLOBAL|XACT why="contention" 781F4B92:007A569D 17 142 10704 19 ksqgtl: SUCCESS 781F4BB3:007A569E 17 142 10812 2 0x000000000041083A 0x0000000000000000 0x0000000000234717 781F4BBA:007A569F 17 142 10812 3 0x0000000000000000 0x0000000000000000 0x0000000000000000 781F4BC0:007A56A0 17 142 10812 4 0x0000000000000000 0x0000000000000000 0x0000000000000000 781F4BD3:007A56A1 17 142 10812 5 0x000000000041083A 0x0000000000000000 0x0000000000000000 781F4BFE:007A56A2 17 142 10811 1 0x000000000041083A 0x0000000000000000 0x0000000000234711 0x0000000000000002 781F4C06:007A56A3 17 142 10811 2 0x000000000041083A 0x0000000000000000 0x0000000000234718 0x00007FA074EDA560 781F4C26:007A56A4 17 142 10813 1 ktubnd: Bind usn 7 nax 1 nbx 0 lng 0 par 0 781F4C43:007A56A5 17 142 10813 2 ktubnd: Txn Bound xid: 7.24.510 781F4C4A:007A56A6 17 142 10704 83 ksqgtl: acquire TX-00070018-000001fe mode=X flags=GLOBAL|XACT why="contention" 781F4C51:007A56A7 17 142 10704 19 ksqgtl: SUCCESS ?????????? ???????? 781F4CBF:007A56A8 17 142 10005 1 KSL WAIT BEG [SQL*Net message to client] 1650815232/0x62657100 1/0x1 0/0x0 781F4CCC:007A56A9 17 142 10005 2 KSL WAIT END [SQL*Net message to client] 1650815232/0x62657100 1/0x1 0/0x0 time=13 781F4CDE:007A56AA 17 142 10005 1 KSL WAIT BEG [SQL*Net message from client] 1650815232/0x62657100 1/0x1 0/0x0 786BD85D:007A57E0 17 142 10005 2 KSL WAIT END [SQL*Net message from client] 1650815232/0x62657100 1/0x1 0/0x0 time=5016447 786BD966:007A57E1 17 142 10005 1 KSL WAIT BEG [SQL*Net message to client] 1650815232/0x62657100 1/0x1 0/0x0 786BD96E:007A57E2 17 142 10005 2 KSL WAIT END [SQL*Net message to client] 1650815232/0x62657100 1/0x1 0/0x0 time=8 SESSION B ???PID =24 ,??????? SX mode? TM lock,??row lock? acquire X mode?TX-00070018-000001fe ksqgtl: acquire TM-0000da15-00000000 mode=SX flags=GLOBAL|XACT why="contention" ksqgtl: SUCCESS 0x000000000041083A 0x0000000000000000 0x00000000002354F8 0x0000000000000000 0x0000000000000000 0x0000000000000000 0x0000000000000000 0x0000000000000000 0x0000000000000000 0x000000000041083A 0x0000000000000000 0x00000000002354F8 0x0000000000000001 0x000000000041083A 0x0000000000000000 0x00000000002354F8 0x0000000008A63780 0x0000000000000001 0x0000000000800861 0x0000000000000241 0x0000000000000001 0x000000000041083A 0x0000000000000001 0x0000000000000001 0x000000000041083A 0x0000000000000000 0x00000000002354F9 0x0000000000000002 ksqgtl: acquire TX-00070018-000001fe mode=X flags=GLOBAL|LONG why="row lock contention" C4048EBD:007F52B6 24 140 10005 2 KSL WAIT END [enq: TX - row lock contention] 1415053318/0x54580006 458776/0x70018 510/0x1fe time=2929879 C4048ED4:007F52B7 24 140 10005 1 KSL WAIT BEG [enq: TX - row lock contention] 1415053318/0x54580006 458776/0x70018 510/0x1fe C43146CA:007F535E 24 140 10005 2 KSL WAIT END [enq: TX - row lock contention] 1415053318/0x54580006 458776/0x70018 510/0x1fe time=2930676 ????????? ,PID=24 ??????ksqcmi???????? deadlock C43146D9:007F535F 24 140 10704 134 ksqcmi: performing local deadlock detection on TX-00070018-000001fe C43146F8:007F5360 24 140 10704 150 ksqcmi: deadlock not detected on TX-00070018-000001fe ?? ??? PID 17 ??ROLLBACK ???? ,????????: PID 17 ROLLBACK; D7A495BB:007F9D3E 17 142 10005 4 KSL POST SENT postee=24 loc='ksqrcl' id1=0 id2=0 name= type=0 D7A495D8:007F9D3F 17 142 10444 12 ABORT TRANSACTION - xid: 0x0007.018.000001fe ?? PID 17 ??? TX resource?Enqueue Waiter linked List ???PID 24???,????KSL POST SENT ?? PID 24, ???ksqrcl???ENQUEUE LOCK ?PID 24??????KSL POST (KSL POST RCVD poster=17), ?ksqgtl???? TX-00070018-000001fe ?? ksqrcl??, ??PID 24???????? TX lock?USN ,??????? USN 3 XID 3.11.582 ,???acquire TX-0003000b-00000246 D7A49616:007F9D41 24 140 10005 3 KSL POST RCVD poster=17 loc='ksqrcl' id1=0 id2=0 name= type=0 fac#=0 facpost=1 D7A4961C:007F9D42 24 140 10704 19 ksqgtl: SUCCESS D7A4967D:007F9D43 24 140 10704 117 ksqrcl: release TX-00070018-000001fe mode=X D7A496A5:007F9D44 24 140 10813 1 ktubnd: Bind usn 3 nax 1 nbx 0 lng 0 par 0 D7A496C2:007F9D45 24 140 10813 2 ktubnd: Txn Bound xid: 3.11.582 D7A496C7:007F9D46 24 140 10704 83 ksqgtl: acquire TX-0003000b-00000246 mode=X flags=GLOBAL|XACT why="contention" D7A496E4:007F9D47 24 140 10704 19 ksqgtl: SUCCESS ROW LOCK?Release ??????TX?ENQUEUE LOCK,?????????Process J ????????????, Process K??????????? ,Process K?????????,???row piece?lb??0×0 ,?????ITL,Process Z???ITL???????Process J????XID,?????Process J?????TX lock,PROCESS K ???TX resource?Enqueue Waiter Linked List?????X mode(exclusive)?enqueue lock? ???Process J??TX lock?,Process J?????TX resource?Enqueue Waiter Linked List ???Process K??????,??POST?????Process K? TX lock??????,???????row lock???????,?????????

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Oracle Expert Live Virtual Seminars - Learn the tricks that only the expert know

- by rituchhibber

Oracle University Expert Seminars are exclusive events delivered by top Oracle experts with years of experience in working with Oracle products. Introduction into ADF & BPM with Markus Grünewald - 11-12 December 2012 ADF/WebCenter 11g Development in Depth with Andrejus Baranovskis - 13-14 December 2012 Beating the Optimizer with Jonathan Lewis - Online - 17 January 2013 RAC Performance Tuning On-Line with Arup Nanda - 25 January 2013 Mastering Oracle Parallel Execution with Randolf Geist - 30 January 2013 Minimize Downtime with Rolling Upgrade using Data Guard with Uwe Hesse - 8 February 2013 For a full list of Oracle Expert Seminars near you or on line click here. Remember that your OPN discount is applied to the standard prices shown on the website.For more information, assistance in booking and to request new dates, contact your local Oracle University Service Desk.

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Now you know it's true !

- by GrumpyOldDBA

Grumpy is good - official !! http://news.bbc.co.uk/1/hi/8339647.stm...(read more)

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Should experienced programmers know database queries?

- by Shamim Hafiz

There are so many programmers out there who are also an expert at Query writing and Database design. Should this be a core requirement to be an expert programmer or software engineer? Though there are lots of similarities in the way queries and codes are developed, my personal opinion is, Queries seem to have a different Structure than Code and it can be tough to Master both simultaneously due to the different approaches.

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Do you know your ADF "grace period?"

- by Chris Muir

What does the term "support" mean to you in context of vendors such as Oracle giving your organization support with our products? Over the last few weeks I'm taken a straw poll to discuss this very question with customers, and I've received a wide array of answers much to my surprise (which I've paraphrased): "Support means my staff can access dedicated resources to assist them solve problems" "Support means I can call Oracle at anytime to request assistance" "Support means we can expect fixes and patches to bugs in Oracle software" The last expectation is the one I'd like to focus on in this post, keep it in mind while reading this blog. From Oracle's perspective as we're in the business of support, we in fact offer numerous services which are captured on the table in the following page. As the text under the table indicates, you should consult the relevant Oracle Lifetime Support brochures to understand the length of time Oracle will support Oracle products. As I'm a product manager for ADF that sits under the FMW tree of Oracle products, let's consider ADF in particular. The FMW brochure is found here. On page 8 and 9 you'll see the current "Application Development Framework 11gR1 (11.1.1.x)" and "Application Development Framework 11gR2 (11.1.2)" releases are supported out to 2017 for Extended Support. This timeframe is pretty standard for Oracle's current released products, though as new releases roll in we should see those dates extended. On page 8 of the PDF note the comment at the end of this page that refers to the Oracle Support document 209768.1: For more-detailed information on bug fix and patch release policies, please refer to the “Error Correction Support Policy” on MyOracle Support. This policy document is important as it introduces Oracle's Error Correction Support Policy which addresses "patches and fixes". You can find it attached the previous Oracle Support document 209768.1. Broadly speaking while Oracle does provide "generalized support" up to 2017 for ADF, the Error Correction Support Policy dictates when Oracle will provide "patches and fixes" for Oracle software, and this is where the concept of the "grace period" comes in. As Oracle releases different versions of Oracle software, say 11.1.1.4.0, you are fully supported for patches and fixes for that specific version. However when we release the next version, say 11.1.1.5.0, Oracle provides at minimum of 3 months to a maximum of 1 year "grace period" where we'll continue to provide patches and fixes for the previous version. This gives you time to move from 11.1.1.4.0 to 11.1.1.5.0 without being unsupported for patches and fixes. The last paragraph does generalize as I've attempted to highlight the concept of the grace period rather than the specific dates for any version. For specific ADF and FMW versions and their respective grace periods and when they terminated you must visit Oracle Support Note 1290894.1. I'd like to include a screenshot here of the relevant table from that Oracle Support Note but as it is will be frequently updated it's better I force you to visit that note. Be careful to heed the comment in the note: According to policy, the Grace Period has passed because a newer Patch Set has been released for more than a year. Its important to note that the Lifetime Support Policy and Error Correction Support Policy documents are the single source of truth, subject to change, and will provide exceptions when required. This My Oracle Support document is providing a summary of the Grace Period dates and time lines for planning purposes. So remember to return to the policy document for all definitions, note 1290894.1 is a summary only and not guaranteed to be up to date or correct. A last point from Oracle's perspective. Why doesn't Oracle provide patches and fixes for all releases as long as they're supported? Amongst other reasons, it's a matter of practicality. Consider JDeveloper 10.1.3 released in 2005. JDeveloper 10.1.3 is still currently supported to 2017, but since that version was released there has been just under 20 newer releases of JDeveloper. Now multiply that across all Oracle's products and imagine the number of releases Oracle would have to provide fixes and patches for, and maintain environments to test them, build them, staff to write them and more, it's simple beyond the capabilities of even a large software vendor like Oracle. So the "grace period" restricts that patches and fixes window to something manageable. In conclusion does the concept of the "grace period" matter to you? If you define support as "getting assistance from Oracle" then maybe not. But if patches and fixes are important to you, then you need to understand the "grace period" and operate within the bounds of Oracle's Error Correction Support Policy. Disclaimer: this blog post was written July 2012. Oracle Support policies do change from time to time so the emphasis is on you to double check the facts presented in this blog.

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Irma – I Know (Tab)

- by alain.duron(at)oracle.com

[ceci n’est pas un sujet sur Oracle ^^] Apparemment, pas mal de monde cherche cette tab, donc je me suis amusé à la transcrire. Soyez indulgents ! Capo 2 :) E |--0---0---2---2---3---3---5---5--------------------------------0----- B |----0---0---0---0---0---0---5---0-1-----0h1^0-----1^0--4-----4------- G |--------------------------------------0---------0----------4--------- D |--2-------1-------0-----------------2---------2----------4----------- A |--------------------------4-------0--------------------2------------- E |--------------------------------------------------------------------- Em E' E" E"^Em B7 E |--------|-------|-------|-------|----------|--------|-2---2-|-2-222-- B |--0--0--|-0-000-|-0-000-|-0-000-|-0---0----|-0-000--|-4---4-|-4-444-- G |--0--0--|-0-000-|-0-000-|-0-000-|-0---0----|-0-000--|-2---2-|-2-222-- D |--2--2--|-1-111-|-0-000-|-0-000-|-0^2-2----|-2-222--|-2^4-4-|-4-444-- A |--2--2--|-2-222-|-2-222-|-2-222-|-2-2-2----|-2-222--|-2---2-|-2-222-- E |--------|-------|-------|-------|----------|--------|-2---2-|-2-222-- Em B7 C B7 E |--------|-2---2-|-0---0-|-0-000-|-0-000-|-2---2-- B |--0---0-|-4---4-|-1---1-|-1-111-|-1-111-|-4---4-- G |--0---0-|-2---2-|-0---0-|-0-000-|-0-000-|-2---2-- D |--2---2-|-4---4-|-2---2-|-0^222-|-0^222-|-4---4-- A |--2---2-|-2---2-|-3---3-|-3-333-|-3-333-|-2---2-- E |--------|-2---2-|-------|-------|-------|-2---2-- Em B7 C G' C B7 E |--------|-2---2-|-0---0-|-0-000-|-0---0-|-0-000-|-0---0-|-0-000--|-2---2-|-2-222-- B |--0--0--|-4---4-|-1---1-|-1-111-|-1---1-|-1-111-|-1---1-|-1-111--|-4---4-|-4-444-- G |--0--0--|-2---2-|-0---0-|-0-000-|-0---0-|-0-000-|-0---0-|-0-000--|-2---2-|-2-222-- D |--2--2--|-4---4-|-2---2-|-0^222-|-0---0-|-0-000-|-2---2-|-0^222--|-2^4-4-|-4-444-- A |--2--2--|-2---2-|-3---3-|-3-333-|-2---2-|-2-222-|-3---3-|-2-222--|-2---2-|-2-222-- E |--------|-2---2-|-------|-------|-3---3-|-3-333-|-------|--------|-2---2-|-2-222--

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Get to Know a Candidate (12 of 25): Andre Barnett–Reform Party

- by Brian Lanham

DISCLAIMER: This is not a post about “Romney” or “Obama”. This is not a post for whom I am voting. Information sourced for Wikipedia. Barnett is an American politician and entrepreneur. He is the founder of the information technology (IT) company WiseDome Inc. Barnett was born in Zanesville, Ohio in 1976. He attended Austin Peay State University and Western Governors University. A former member of the United States Armed Forces, Barnett served in Sarajevo before being wounded in a helicopter accident. Following his military service, Barnett became a fitness model in New York. In 2001, he founded WiseDome Incorporated, an IT company that provides information technology and data recovery services. Reform Party of the United States of America (RPUSA), generally known as the Reform Party USA or the Reform Party, is a political party in the United States, founded in 1995 by Ross Perot. Perot said Americans were disillusioned with the state of politics—as being corrupt and unable to deal with vital issues—and desired a viable alternative to the Republican and Democratic Parties. The party has nominated different candidates over the years, such as founder Ross Perot, Pat Buchanan, and Ralph Nader. The party's most significant victory came when Jesse Ventura was elected governor of Minnesota in 1998. Since then, the party has been torn by infighting and disagreements, which it seeks to overcome. The Reform Party platform includes the following: * Maintaining a balanced budget, ensured by passing a Balanced Budget Amendment and changing budgeting practices, and paying down the federal debt * Campaign finance reform, including strict limits on campaign contributions and the outlawing of the Political action committee * Enforcement of existing immigration laws and opposition to illegal immigration * Opposition to free trade agreements like the North American Free Trade Agreement and Central America Free Trade Agreement, and a call for withdrawal from the World Trade Organization * Term limits on U.S. Representatives and Senators * Direct election of the United States President by popular vote * Federal elections held on weekends A noticeable absence from the Reform Party platform has been social issues, including abortion and gay rights. Reform Party representatives had long stated beliefs that their party could bring together people from both sides of these issues, which they consider divisive, to address what they considered to be more vital concerns as expressed in their platform. The idea was to form a large coalition of moderates; that intention was overridden in 2001 by the Buchanan takeover which rewrote the RPUSA Constitution to specifically include platform planks opposed to any form of abortion. The Buchananists, in turn, were overridden by the 2002 Convention which specifically reverted the Constitution to its 1996 version and the party's original stated goals. Barnett has Ballot Access in: FL Learn more about Andre Barnett and Reform Party on Wikipedia.

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Get to Know MySQL Workbench

<b>Ghacks:</b> "Although MySQL works exceptionally well from the command line (it's not as hard as one would think), having a solid GUI tool just opens the user up to learning more powerful tasks and getting more work done faster."

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The Virtues and Challenges of Implementing Basel III: What Every CFO and CRO Needs To Know

- by Jenna Danko

The Basel Committee on Banking Supervision (BCBS) is a group tasked with providing thought-leadership to the global banking industry. Over the years, the BCBS has released volumes of guidance in an effort to promote stability within the financial sector. By effectively communicating best-practices, the Basel Committee has influenced financial regulations worldwide. Basel regulations are intended to help banks: More easily absorb shocks due to various forms of financial-economic stress Improve risk management and governance Enhance regulatory reporting and transparency In June 2011, the BCBS released Basel III: A global regulatory framework for more resilient banks and banking systems. This new set of regulations included many enhancements to previous rules and will have both short and long term impacts on the banking industry. Some of the key features of Basel III include: A stronger capital base More stringent capital standards and higher capital requirements Introduction of capital buffers Additional risk coverage Enhanced quantification of counterparty credit risk Credit valuation adjustments Wrong way risk Asset Value Correlation Multiplier for large financial institutions Liquidity management and monitoring Introduction of leverage ratio Even more rigorous data requirements To implement these features banks need to embark on a journey replete with challenges. These can be categorized into three key areas: Data, Models and Compliance. Data Challenges Data quality - All standard dimensions of Data Quality (DQ) have to be demonstrated. Manual approaches are now considered too cumbersome and automation has become the norm. Data lineage - Data lineage has to be documented and demonstrated. The PPT / Excel approach to documentation is being replaced by metadata tools. Data lineage has become dynamic due to a variety of factors, making static documentation out-dated quickly. Data dictionaries - A strong and clean business glossary is needed with proper identification of business owners for the data. Data integrity - A strong, scalable architecture with work flow tools helps demonstrate data integrity. Manual touch points have to be minimized. Data relevance/coverage - Data must be relevant to all portfolios and storage devices must allow for sufficient data retention. Coverage of both on and off balance sheet exposures is critical. Model Challenges Model development - Requires highly trained resources with both quantitative and subject matter expertise. Model validation - All Basel models need to be validated. This requires additional resources with skills that may not be readily available in the marketplace. Model documentation - All models need to be adequately documented. Creation of document templates and model development processes/procedures is key. Risk and finance integration - This integration is necessary for Basel as the Allowance for Loan and Lease Losses (ALLL) is calculated by Finance, yet Expected Loss (EL) is calculated by Risk Management – and they need to somehow be equal. This is tricky at best from an implementation perspective. Compliance Challenges Rules interpretation - Some Basel III requirements leave room for interpretation. A misinterpretation of regulations can lead to delays in Basel compliance and undesired reprimands from supervisory authorities. Gap identification and remediation - Internal identification and remediation of gaps ensures smoother Basel compliance and audit processes. However business lines are challenged by the competing priorities which arise from regulatory compliance and business as usual work. Qualification readiness - Providing internal and external auditors with robust evidence of a thorough examination of the readiness to proceed to parallel run and Basel qualification In light of new regulations like Basel III and local variations such as the Dodd Frank Act (DFA) and Comprehensive Capital Analysis and Review (CCAR) in the US, banks are now forced to ask themselves many difficult questions. For example, executives must consider: How will Basel III play into their Risk Appetite? How will they create project plans for Basel III when they haven’t yet finished implementing Basel II? How will new regulations impact capital structure including profitability and capital distributions to shareholders? After all, new regulations often lead to diminished profitability as well as an assortment of implementation problems as we discussed earlier in this note. However, by requiring banks to focus on premium growth, regulators increase the potential for long-term profitability and sustainability. And a more stable banking system: Increases consumer confidence which in turn supports banking activity Ensures that adequate funding is available for individuals and companies Puts regulators at ease, allowing bankers to focus on banking Stability is intended to bring long-term profitability to banks. Therefore, it is important that every banking institution takes the steps necessary to properly manage, monitor and disclose its risks. This can be done with the assistance and oversight of an independent regulatory authority. A spectrum of banks exist today wherein some continue to debate and negotiate with regulators over the implementation of new requirements, while others are simply choosing to embrace them for the benefits I highlighted above. Do share with me how your institution is coping with and embracing these new regulations within your bank. Dr. Varun Agarwal is a Principal in the Banking Practice for Capgemini Financial Services. He has over 19 years experience in areas that span from enterprise risk management, credit, market, and to country risk management; financial modeling and valuation; and international financial markets research and analyses.

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know more on /etc/hosts

- by Habi

Can somebody explain what does this mean? Explanation to each line will be helpful. I have mentioned some of my queries in comments too. 127.0.0.1 localhost //According to @Dave, it's machine ip. 127.0.1.1 dell-Inspiron-342 // then what is this ip of? The following lines are desirable for IPv6 capable hosts ::1 ip6-localhost ip6-loopback fe00::0 ip6-localnet ff00::0 ip6-mcastprefix ff02::1 ip6-allnodes ff02::2 ip6-allrouters

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Get to Know a Candidate (8 of 25): Rocky Anderson–Justice Party

- by Brian Lanham

DISCLAIMER: This is not a post about “Romney” or “Obama”. This is not a post for whom I am voting. Information sourced for Wikipedia. Ross Carl “Rocky” Anderson served two terms as the 33rd mayor of Salt Lake City, Utah, between 2000 and 2008. He is the Executive Director of High Road for Human Rights. Prior to serving as Mayor, he practiced law for 21 years in Salt Lake City, during which time he was listed in Best Lawyers in America, was rated A-V (highest rating) by Martindale-Hubbell, served as Chair of the Utah State Bar Litigation Section[4] and was Editor-in-Chief of, and a contributor to, Voir Dire legal journal. As mayor, Anderson rose to nationwide prominence as a champion of several national and international causes, including climate protection, immigration reform, restorative criminal justice, LGBT rights, and an end to the "war on drugs". Before and after the invasion by the U.S. of Iraq in 2003, Anderson was a leading opponent of the invasion and occupation of Iraq and related human rights abuses. Anderson was the only mayor of a major U.S. city who advocated for the impeachment of President George W. Bush, which he did in many venues throughout the United States. Anderson's work and advocacy led to local, national, and international recognition in numerous spheres, including being named by Business Week as one of the top twenty activists in the world on climate change,serving on the Newsweek Global Environmental Leadership Advisory Board, and being recognized by the Human Rights Campaign as one of the top ten straight advocates in the United States for LGBT equality. He has also received numerous awards for his work, including the EPA Climate Protection Award, the Sierra Club Distinguished Service Award, the Respect the Earth Planet Defender Award, the National Association of Hispanic Publications Presidential Award, The Drug Policy Alliance Richard J. Dennis Drugpeace Award, the Progressive Democrats of America Spine Award, the League of United Latin American Citizens Profile in Courage Award, the Bill of Rights Defense Committee Patriot Award, the Code Pink (Salt Lake City) Pink Star honor, the Morehouse University Gandhi, King, Ikeda Award, and the World Leadership Award for environmental programs. Formerly a member of the Democratic Party, Anderson expressed his disappointment with that Party in 2011, stating, “The Constitution has been eviscerated while Democrats have stood by with nary a whimper. It is a gutless, unprincipled party, bought and paid for by the same interests that buy and pay for the Republican Party." Anderson announced his intention to run for President in 2012 as a candidate for the newly-formed Justice Party. Although founded by Rocky Anderson of Utah, the Justice Party was first recognized by Mississippi and describes itself as advocating economic justice through measures such as green jobs and a right to organize, environment justice through enforcing employee safeguards in trade agreements, and social and civic justice through universal health care. In its first press release, the Utah Justice Party set forth its goals for justice in the economic, environmental, social and civic realms, along with a call to rid the corrupting influence of big money from government, to reverse the erosion of rights guaranteed by the Constitution, and to stop draining American resources to support illegal wars of aggression. Its press release says its grassroots supporters believe that now is the time for all to "shed their skeptical view that their voices don't matter", that "our 2-party system is a 'duopoly' controlled by the same corporate and military interests", and that the people must act to ensure "that our nation will achieve a brighter, sustainable future.” Anderson has ballot access in CO, CT, FL, ID, LA, MI, MN, MS, NJ, NM, OR, RI, TN, UT, VT, WA (152 electoral votes) and has write-in access in AL, AK, DE, GA, IL, IO, KS, MD, MO, NE, NH, NY, PA, TX Learn more about Rocky Anderson and Justice Party on Wikipedia.

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Ten Linux Commands Every Web Developer Should Know

Learn 10 indispensable Linux commands that can make web development work much easier and even more enjoyable.

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What are the 'must know' GDB commands?

- by Chris Smith

I'm starting to get the hang of GDB, but everything still feels much slower than when debugging in Eclipse or Visual Studio. Are there any GDB commands you find particularly useful/productive? My life became dramatically better when I discovered: list - Display source code near the current instruction But that is still pretty basic. (And unnecessary when running GDB from Emacs.) Is there any way to do things like setup a watch window? (Print and update the result of an expression every time execution stops.)

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What should every programmer know about web development?

- by Joel Coehoorn

What things should a programmer implementing the technical details of a web application before making the site public? If Jeff Atwood can forget about HttpOnly cookies, sitemaps, and cross-site request forgeries all in the same site, what important thing could I be forgetting as well? I'm thinking about this from a web developer's perspective, such that someone else is creating the actual design and content for the site. So while usability and content may be more important than the platform, you the programmer have little say in that. What you do need to worry about is that your implementation of the platform is stable, performs well, is secure, and meets any other business goals (like not cost too much, take too long to build, and rank as well with Google as the content supports). Think of this from the perspective of a developer who's done some work for intranet-type applications in a fairly trusted environment, and is about to have his first shot and putting out a potentially popular site for the entire big bad world wide web. Also, I'm looking for something more specific than just a vague "web standards" response. I mean, HTML, JavaScript, and CSS over HTTP are pretty much a given, especially when I've already specified that you're a professional web developer. So going beyond that, Which standards? In what circumstances, and why? Provide a link to the standard's specification.

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How did Ubuntu know my WPA Key?

- by nebukadnezzar

I've recently moved my /home to another computer (keeping all configuration files), with a fresh installation of Ubuntu 10.10. After Installation I've installed wicd and ndiswrapper, to get my Internet Connection up and running. However, after changing /etc/network/interfaces from auto lo iface lo inet loopback To auto wlan0 iface wlan0 inet dhcp and running sudo /etc/init.d/networking restart to get wlan0 set up, wicd just suddenly connected... to my modem. Without supplying any information about the modem whatsoever. Of course wicd creates a local directory at ~/.wicd/, but that directory is empty, and the temporary global configuration at /var/lib/wicd/configurations/ didn't exist due to fresh installation of ubuntu. So what's the deal? Where did wicd get the ESSID and the WPA Key? There hasn't been any activity in this question, but it's still open (and even worth some rep)!

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1/26: EncPk-NI Disguises Itself as Security Product--and Other Threats You Should Know About

A summary of today's malware alerts.

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I dont know my password and wont let me change it via GRUB

- by josh

I recently turned off the login password so i would not have to enter my password every time I turn the system on. But now when I try to update or download anything it asks me for my password so I enter my old password and it keeps telling me its wrong when I have only ever had the 1 password and its a simple 1 so I would not forget and considering I have only had UBUNTU installed for two days it is really frustrating. I have also tried resetting it via the GRUB but it wont let me type the new password. Please help ASAP.

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We're Subversion Geeks and we want to know the benefits of Mercurial

- by Matt

Having read I'm a Subversion geek, why should I consider or not consider Mercurial or Git or any other DVCS. I have a related follow up question. I read that question and read the recommended links and videos and I see the benefits but I don't see the overall mindshift people are talking about. Our team is of 8-10 developers that work on one large code base consisting of 60 projects. We use Subversion and have a main trunk. When a developer starts a new Fogbugz case they create a svn branch, do the work on the branch and when they're done they merge back to the trunk. Occasionally they may stay on the branch for an extended time and merge the trunk to the branch to pick up the changes. When I watched Linus talk about people creating a branch and never doing it again, that's not us at all. We create probably 50-100 branches a week without issue. The biggest challenge is the merging but we've gotten pretty good at that as well. I tend to merge by fogbugz case & checkin rather than the entire root of the branch. We never work remotely and we never make branches off of branches. If you're the only one working in that section of the code base then the merge to the trunk goes smoothly. If someone else had modified the same section of code then the merge can get messy and you might need to do some surgery. Conflicts are conflicts, I don't see how any system could get it right most of the time unless if was smart enough to understand the code. After creating a branch the following checkout of 60k+ files takes some time but that would be an issue with any source control system we'd use. Is there some benefit of any DVCS that we're not seeing that would be of great help to us?

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Know More About SEO Software

SEO optimization is very essential to people who are looking for the current means to enhance the popularity of their sites on the internet. The SEO tool is one that delivers the success of your site and at the same time ensures that you get targeted traffic with ease. There is immense competition on the internet and it is for this reason why you should go in for SEO optimization so that you can have a winning edge over the other players in the online market.

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Turning Supply Data Into Savings- (Almost) Everything You Need to Know in 12 Minutes

- by David Hope-Ross

Strategic sourcing and supplier management analytics are easy. The hard part is getting reliable data that provide an accurate record of suppliers, spend, invoices, expenses, and so on. In this new AppsCast, e-Three’s Amy Joshi provides an extraordinarily cogent explanation of key challenges, technologies, and tactics for improving spend visibility. Take twelve minutes to listen and learn. The techniques that Amy outlines can add millions to your organization’s bottom line.

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Get to Know a Candidate (2 of 25): Merlin Miller–American Third Position Party

- by Brian Lanham

DISCLAIMER: This is not a post about “Romney” or “Obama”. This is not a post for whom I am voting. Information sourced for Wikipedia. Meet Merlin Miller of American Third Position Party In addition to being American Third Position Party nominee, Miller is an independent film maker. He is a graduate of West Point and has commanded two units in the United States Army. After military service he worked as an industrial engineering manager for Michelin Tire. He learned about film making by earning an MFA from the University of Southern California. Mr. Miller is on the ballot in: CO, NJ, and TN. In the 2000’s, Miller began taking an increasingly paleoconservative political stance. He claimed that Hollywood “ surreptitiously seeks to destroy our European-American heritage and our Christian-based traditional values, and replace them with values that debase these traditional values and elevate minorities as paragons of virtue and wisdom....Today’s motion pictures, in concert with other forms of mass media entertainment, are the greatest enemies to the well-being of our progeny and the future of our country.” Miller states that he "doesn't like" interracial marriage; however, he does not support outlawing interracial marriage, either. Miller has denied being anti-Semitic, instead claiming that he merely opposes "favoritism" granted to Jews in the film industry. He also opposes illegal immigration and what he refers to as "wide open borders" in the United States. The American Third Position Party (A3P) is a third positionist American political party which promotes white supremacy. It was officially launched in January 2010 (although in November 2009 it filed papers to get on a ballot in California) partially to channel the right-wing populist resentment engendered by the financial crisis of 2007–2010 and the policies of the Obama administration and defines its principal mission as representing the political interests of white Americans. The party takes a strong stand against immigration and globalization, and strongly supports an anti-interventionist foreign policy. Although the party does not support labor unions, they do strongly support the labor rights of the American working class on a platform of placing American workers first over illegal immigrant workers and banning of overseas corporate relocation of American industry and technology Third Position or Third Alternative refers to a revolutionary nationalist political position that emphasizes its opposition to both communism and capitalism. Advocates of Third Position politics typically present themselves as "beyond left and right", instead claiming to syncretize radical ideas from both ends of the political spectrum Learn more about Merlin Miller and American Third Position Party on Wikipedia.

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Get to know Linux: AppArmor

<b>Ghacks:</b> "Linux is such a strong operating system for two primary reasons – by design and with the help of security systems like AppArmor and SELinux."

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Do you know what is a DevOps Project?

- by Gopinath

Yesterday I wrote about OpenStack project, an open source cloud computing stack that lets you build Cloud Computing environments. While reading more on this topic I stumbled about a new type of projects called DevOps projects. OpenStack is all set to become the first DevOps project, reports Forbes …the way OpenStack is applying the open source model to creating cloud infrastructure, the open source model is on the verge of being extended so that the collaboration and design process will include software, hardware, and networking in the data center as well as operational processes. In modern development, the idea of designing software, data center, and operations using one integrated team is called DevOps.

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I dont know how to run e2fsck or fsck and what are their differences

- by Salvador

My Kern.log file advise me to run e2fsck. Aug 30 14:10:11 ubuntu kernel: [ 122.378292] EXT4-fs (sda11): warning: maximal mount count reached, running e2fsck is recommended Aug 30 14:10:11 ubuntu kernel: [ 122.387488] EXT4-fs (sda11): mounted filesystem with ordered data mode. Opts: (null) /dev/sda11 is not mounted within my current OS (Ubuntu 10.04) I have known that e2fsck is a dangerous command when running against the root partition which is at the same hard disk as sda11. I would trust in this solution better than others: Can I run fsck or e2fsck when Linux file system is mounted?

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