fsc ssc

pieces of data are generated. After blob is set to null, a redo of MB is generated, apparently, blob content does not produce redo. Analysis Principle. By analyzing the dump block content, we can see that the redo generated after the blob field is set to null is similar to col 1: [84. Before blob is set to NULL: Block header dump: 0x0171f8b4Object id on Block? YSeg/obj: 0x17f1d csc: 0x9a8. 7256c728 itc: 2 flg: E typ: 1-DATABrn: 0 bdba: 0x171f8b0 ver: 0x01 opc: 0Inc: 0 exflg: 0Itl Xid Uba Flag L

the number of resources required to lock one row. This is a constant: 0 and 1 have a flag on each row of Oracle data to indicate whether the row data is locked. to check whether a row is locked, you must find this row directly, instead of counting on which list we can get the answer d Ump a data Block. The trc file of its transaction header is excerpted as follows: [SQL] Block header dump: 0x01000197 Object id on Block? Y seg/obj: 0xcd8a csc: 0x00. a26fe itc: 2 flg: E typ: 1-DATA brn: 0 bdba: 0

/obj: 0x1c csc: 0x00. ac088 itc: 1 flg:-typ: 1-DATAFsl: 0 fnx: 0x0 ver: 0x01 Itl Xid Uba Flag Lck Scn/Fsc0x01 0x0002. 022.00000145 0x008002cf. 00c7. 2c -- U-1 fsc 0x0000. 000ac089 Data_block_dump, data header at 0x1c1ba444====================Tsiz: 0x1fb8Hsiz: 0x2baPbl: 0x1c1ba444Bdba: 0x004000aa76543210Flag = --------Ntab = 1Nrow= 340Frre =-1Fsbo = 0x2baFseo = 0x5a8Avsp = 0x33aTosp = 0x33a0xe: pti [0] nrow = 340 offs = 00x12: pri [0] offs = 0x1fa70x14

/obj: 0x3ccd csc: 0x00.13943ef itc: 2 flg: O typ: 1 - DATAfsl: 0 fnx: 0x0 ver: 0x01Itl Xid Uba Flag Lck Scn/Fsc0x01 0x000a.02e.00000ad7 0x00800036.03de.18 --U- 1 fsc 0x0000.013943f30x02 0x0000.000.00000000 0x00000000.0000.00 ---- 0 fsc 0x0000.00000000data_block_dump,data header at 0xadb505ctsiz: 0x1fa0hsiz: 0x14pbl: 0x0adb505cbdba: 0x05c0002276543210flag=--------ntab=1nrow=1frre=-1fsbo=0x14fseo=0x1f9aavsp=0

CharacteristicsScala's trait can be implemented in a way that compares to Java's interface. Scala's trait supports the blending of classes and singleton objects with multiple trait (using methods from these trait, without violating the principle of single inheritance).Scala defines an app trait type for the Singleton object's main, so the above example can be simplified to:Helloworld.scalaobject HelloWorld extends App {println ("Hello world!");}This code cannot be run as a script, and Scala's sc

whether to follow the Java file naming style according to your preferences.Finally, the Scala trait function, Scala's trait and Java interface compared to the method can be implemented. Scala's trait supports the blending of classes and singleton objects with multiple trait (using methods from these trait, without violating the principle of single inheritance).Scala defines an app trait type for the Singleton object's main, so the above example can be simplified to:Helloworld.scalaobject HelloW

/***********************************************************************************/ /*/ /*/ /*/program:file System Class (FSC)/*/ /*/PHP programer: Wu Di (James Wu)/*/ /*/email:wu-shuang@163.net/*/ /*/homepage:http://www.dev-php.com/*/ /*/date:2002-01-24/*/ /*/ /*/ /***********************************************************************************/ Class fsc{ /********************************************

the table is changed--- This flag of can also be used to query data, but an error occurs when dumping the block, as shown in the following ora--- ORA-00600: Internal error code, independent variable: [4555], [0], [], [], [], [], [], []--- [0] in the error is the data corresponding to typ.--- Fsl: 1 byte Index to the first slot on the ITL freelist. itl tx freelist slot--- Fnx: 4 bytes free list address Null if this block is not on a freelist--- Data such as fnx: 0x1000029--- Ver: 1 byte format (

Block header dump: 0x01800096 Object ID on block? Y SEG/obj: 0x19d1 CSC: 0x00. 2e389c0f ITC: 2 flg: O Typ: 1-Data FSL: 0 fnx: 0x0 Ver: 0x01 ITL Xid UBA flag lck scn/FSC 0x01 0x0003. 009.00000057 0x0080004b. 0042.56 -- U-1 FSC 0x0000. 2e389c16 0x02 0x0000. 000.00000000 0x00000000. 0000.00 ---- 0 FSC 0x0000.00000000 Data_block_dump, data header at 0x651105c ====

tablespaces."Block Type: occupies 1 byte and is often used. 1 = undo segment header block; 2 = undo data block; 5 = Data Segment header block; 6 = data blockUnused: Reserved byte, which occupies 4 bytes for compatibility.Tail includes 2 bytes of SCN base (low-order) in SCN, blocktype, and sequence number. when a block is read, check whether tail is consistent with the block header to ensure that the block is not damaged ).2) The transaction header:A total of 48 bytes, including 24 bytes control

Core tips:Check the file (SYmbolic LinK) header in the/lib/module/{kernel version number}/kernel/directory and whether the source is valid. They should be linked to your kernel Compilation directory.In centos 6. x linux, the self-compiled kernel 3.0.32 is too old.Virtualbox has not been updated for a long time, today updated, to the vbox official download installation package VirtualBox-4.2.12-84980-Linux_x86.run, sh run, but get the prompt: The code is as follows:Copy code [Root @

If you# cat/sys/power/stateMEM DiskYou canecho "Mem" >/sys/power/state this is equivalent to standbyecho "Disk" >/sys/power/state this is equivalent to hibernation From http://linux.chinaunix.net/bbs/viewthread.php?tid=1057578 The command line executes as follows: [ROOT@FSC feng]# File/sys/power/state/sys/power/state:ascii text[ROOT@FSC feng]# Cat/sys/power/stateStandby MEM Disk[ROOT@

:0x0100019c Object ID on block? Y SEG/OBJ:0XCEF0 csc:0x00.c3cf8 itc:3 flg:e typ:1-DATA brn:0 bdba:0x1000199 ver:0x01 opc:0 inc:0 exflg:0 Itl Xid Uba Flag Lck SCN/FSC 0x01 0xffff.000.00000000 0x00000000.0000.00 C---0 SCN 0x0000.000c3cf8 0x02 0x0006.02b.000001a1 0x008000d0.00f6.2a----FSC 0x0000.00000000 0x03 0x0000.000.00000000 0x00000000.0000.00----0 FSC 0

that the content of BLOB is not produce redo.Analysis principle, with the help of analysis of the contents of the dump block, you can see that the Set BLOB field null after the redo is just like Col 1: [84] This information. Blob is set to empty before:Block Header Dump:0x0171f8b4Object ID on Block? Yseg/obj:0x17f1d csc:0x9a8.7256c728 itc:2 flg:e typ:1-DATAbrn:0 bdba:0x171f8b0 ver:0x01 opc:0inc:0 exflg:0Itl Xid Uba Flag Lck SCN/FSC0x01 0x0003.01b.000033cf 0x00c001f5.132c.39--u-1

, produced a total of 7.6M redo. It is very clear that the contents of the Blob are not producing redo. Analysis principle. With the help of analyzing the contents of the dump block, it is possible to see that the redo generated by setting the BLOB field null is just like Col 1: [84] This information. BLOB set to NULL once: Block Header Dump:0x0171f8b4Object ID on Block? Yseg/obj:0x17f1d csc:0x9a8.7256c728 itc:2 flg:e typ:1-DATAbrn:0 bdba:0x171f8b0 ver:0x01 opc:0inc:0 exflg:0Itl Xid Uba Flag Lc

PHP traverses the implementation code of stdclassobject. Data to be operated: Copy the code as follows: $ testArray ([0] stdClassObject ([tags] fastest car, Bloodhound, SSC [id] 48326888 )) the method found on the internet is to use the data to be operated by ge: The code is as follows: $ Test = Array([0] => stdClass Object([Tags] => fastest car, Bloodhound, SSC[Id] = gt; 48326888)) The method found

$url = "Http://www.cailele.com/static/ssc/newlyopenlist.xml"; $doc = new DOMDocument (); $doc->load ($url); Read XML file $lst = $doc->getelementsbytagname (' Row '), for ($i =0; $i I want to read the XML Expec,opencode,opentime three values, do not know why the reading is not, ask for answers Reply to discussion (solution) $xml = XML; $doc = new DOMDocument (); $doc-

. open (); // Create a channel and bind it to port 9000Serversocketchannel SSC = serversocketchannel. open ();Inetsocketaddress address = new inetsocketaddress (inetaddress. getlocalhost (), 9000 );SSC. socket (). BIND (Address ); // Enable non-blocking.SSC. configureblocking (false ); // Register the channel and events we are interested in with SelectorSelectionkey S =

interface ISessionService3 {4 [OperationContract(IsOneWay = true)]5 void Login(string Name);6 } Client Reference: ServiceClient. sessionServiceClient SSC = new ServiceClient. sessionServiceClient (); Console. write ("input Username:"); string Name = Console. readLine (); SSC. login (Name); while (true) {Console. readKey (); SSC. login (Co

Spark1.3 adds Directstream to handle Kafka messages. Here's how to use it:Kafkautils.createdirectstream[string, String, Stringdecoder, Stringdecoder] (SSC, Kafkaparams, Topicsset)Ssc:streamcontextKafkaparams:kafka parameters, including Kafka's brokers, etc.Topicsset: The topic to read.This method creates an input steam that reads the message directly from the Kafka brokers, rather than creating any receiver (that is, not reading the message through Ka