useful primarily to allow for parallel propagation inreplication environments. It increases the size of each row by 6 bytes.
NOROWDEPENDENCIESSpecifyNOROWDEPENDENCIES if you do not want table to use the row-leveldependency tracking feature. This is the default.
That is to say, when norowdependencies is used as the default table creation parameter, ora_rawscn is taken from the SCN of the data block header. At this time, for the row in the same block, their ora_rowscn is the same.
When rowde
=15,cr=18,cu=0,mis=0,r=0,dep=1,og=4,tim=1422682994360535Ora-00704:bootstrap Process FailureOra-00704:bootstrap Process FailureOra-00604:error occurred at recursive SQL level 1Ora-01555:snapshot too old:rollback segment number with name "_syssmu20$" too
By dump the block above, we found that file 1 block 122 has a slight problem, as follows:
seg/obj:0x12 csc:0xd6c.1abf4d18 itc:1 FLG:- typ:1-DATA fsl:0 fnx:0x0 ver:0x01 Itl xid Uba flag lck SCN/FSC
)]C (t) =φ (t) is a switching function, such as φ (t) = 1, can represent the color signal of the NTSC system, such as φ (t) =+1 (even line) or 1 (odd line), can represent the color subcarrier progressive inverted phase of the PAL system chroma signal. In PAL system, chroma secondary carrier frequency Fsc=283.75fh=4.43mhz, line frequency fh=15.625khz, Frame frequency =25hz, field frequency =50hz. In the NTSC system, the chromaticity subcarrier
companion class and the companion object can access each other's private variables. The difference between the companion object and the companion class is that the companion object has no construction parameters becauseAn associated object cannot be instantiated.. Scala Program Scala is an object, either a companion object or a standalone object ). This object must have a method named main that returns the unit value and has a suitable signature (the parameter is array [String. If a Sc
altered.
SYS @ anqing2 (rac2)>Oradebug tracefile_name
/U01/app/oracle/admin/anqing/udump/anqing2_ora_32276.trc
[Oracle @ rac2 ~] $Cat/u01/app/oracle/admin/anqing/udump/anqing2_ora_32276.trc
* ** 17:51:31. 366
Start dump data blocks tsn: 0 file #: 1 minblk 292689 maxblk 292689
Buffer tsn: 0 rdba: 0x00447751 (1/292689)
-- Buffertsn: the number of tablespace corresponding to the data file. This is only the data recorded in the dump file. The block does not record the number of tablespace.
Scn: 0
Abstract: When using infopath, sometimes we may need to put the form into a form library or B form library based on the choices of the person who filled in the form, that is, there is no way to save the document library in the form template. However, there is no way to continue without entering a save location when submitting a request. Fortunately, vsta allows you to change the location of the saved form library before submission.
Create a template, for example,The submitted URLThis f
executables and files
Teamcenter shared data subdirectories and files
Database Connection
Teamcenter Volume
Additional Optional Teamcenter features such as File Management System (FMS)
It is obvious, made a little mistake to select both corporate server and volume server in the below snapshot. 5) Click the features to install and specify Tc_root directory. I Select the following features to install. 6) Specify FSC ID and port
$datafile where file#=40;NAME--------------------------------------------------------------------------------+dg/xxxx/datafile/undotbs4At the same time dump the undo block and find that it does feel a bit unusual, as follows:
********************************************************************************UNDO BLK:xid:0x0009.01b.0014320a seq:0xa47 cnt:0x1 irb:0x1 icl:0x0 flg:0x0000REC Offset rec Offset rec Offset rec Offset rec Offset--------------------------------------------------------------
some physical and electrical characteristics of PHY, such as interface type rmii/mii, level characteristic, and data link layer, mainly has MAC (Media Intervention control Layer) protocol, ARP (address Resolution) protocol, RARP (reverse Address Resolution) protocol.
Mac Header composition: (Mac frame is the data frame format that is actually transmitted in physical media)
1. Preamble: For data Synchronization (the contiguous 01 sequence occupies a total of seven bytes of space, that is, 55-55-
should be forward-looking, to the terminal construction, should be left with the scope of expansion, so that the whole campus network construction can be developed continuity.
3, Reliability:
School is only the user of the campus network, it is not necessary and difficult to support network engineers. Therefore, in the concrete construction, should take into account the campus network of Ease of use, easy maintenance and reliability.
Because of this, high-performance, scalable, easy to upgra
string*Swift's string type is seamlessly bridged with the Foundation NSString class*the strings in the OC language are also terminated with a, Swift is not*The string in OC is an object, and Swift uses string as a struct, which is more efficient and supports traversal attention* Swift's string type is a value type. If you create a new string, then it is a constant, variable assignment operation, or a function/when passed in a method, a value copy is made. In any case, a new copy of the existing
Sun.reflect.DelegatingMethodAccessorImpl.invoke ( delegatingmethodaccessorimpl.java:43) at Java.lang.reflect.Method.invoke (method.java:606) at Java.io.ObjectStreamClass.invokeWriteObject (objectstreamclass.java:988) at Java.io.ObjectOutputStream.writeSerialData (objectoutputstream.java:1495) at Java.io.ObjectOutputStream.writeOrdinaryObject (objectoutputstream.java:1431) The code is as follows:Val lines = Kafkautils.createstream (SSC, zookep_addres
instantiated, a peer socket object is created.The socket channel can run non-blocking mode and is selectable, non-blocking I/O is closely linked to selectivity, which is why the managed blocking API is defined in Selectablechannel. Setting non-blocking is very simple, as long as you call the Configureblocking (False) method. If you need to change the blocking mode halfway, you must first obtain the lock of the object returned by the Blockinglock () method.o ServersocketchannelThe Serversocketch
(). Setappname ("Hdfswordcount"). Setmaster ("local[2]") val sparkconf = new sparkconf (). Set AppName ("Hdfswordcount")//Create the context val SSC = new StreamingContext (sparkconf, Seconds ())//val ho Stname = "127.0.0.1" val hostname = "localhost" val port = 2345 val storagelevel = storagelevel.memory_only Val flumestream = Flumeutils.createstream (SSC, hostname, port, Storagelevel) Flumestream.count
from one or more topics in Kafka and does wordcount.* Usage:directkafkawordcountBrokers> Topics> * Brokers>is a list of one or more Kafka brokers * Topics>is a list of one or more Kafka topics to consume from ** Example:* $ bin/run-example streaming. Directkafkawordcount broker1-host:port,broker2-host:port \* Topic1,topic2 */ObjectDirectkafkawordcount { defMain (args:array[string]) { if(Args.length 2) {System.err.println (S "" " | Usage:directkafkawordcount | | |
The instructions for using the 7z.exe in the cmd window are as follows:7-zip (A) 4.57 Copyright (c) 1999-2007 Igor Pavlov 2007-12-06Usage:7za [A:add Files to archiveB:benchmarkD:delete Files from archiveE:extract files from archive (without using directory names)L:list contents of ArchiveT:test Integrity of ArchiveU:update Files to archiveX:extract files with full paths-ai[r[-|0]]{@listfile |! Wildcard}: Include Archives-ax[r[-|0]]{@listfile |! Wildcard}: EXclude Archives-bd:disable Percentage I
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