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First exception Recovery for Oracle 12C-File header bad block

4.1.3Copyright (c) 2008,2009,2010,2011 Xiongjun. All rights reserved.Loading Default Config .....Byte_order LittleBlock_size 8192Db_timezone-7Invalid DB timezone:-7Client_timezone 8Invalid Client Timezone:8Asmfile_extract_path/home/oracle/hongye/odu/dataData_path/home/oracle/hongye/odu/dataLob_path/home/oracle/hongye/odu/dataCharset_name ZHS16GBKNcharset_name AL16UTF16Output_form DMPError at line 10.Lob_storage infileClob_byte_order BigTrace_level 1Delimiter |unload_deleted YesFile_header_offse

Monitoring and management of new j2se5.0 features

)Collectionusagethreshold: 0Collectionusagethresholdcount: 0Memorymanagernames: [ljava. Lang. String; @ 863399Peakusage: init = 1441792 (1408 K) used = 142120 (138 K) committed = 1441792 (1408 K) max = 61997056 (60544 K)Usage: init = 1441792 (1408 K) used = 142120 (138 K) committed = 1441792 (1408 K) max = 61997056 (60544 K)Usagethreshold: 0Usagethresholdcount: 0Name: tenured genType: heap memory --- Java. Lang. Management. memorypoolmxbean ---Collectionusage: init = 8388608 (

Verification checkpoint SCN during Oracle Database startup

data members = 1Arch list: Head = 2, Tail = 2, Force scn: 0x0000. 00091e72scn: 0x0000. 00091e88Activation ID: 1367751332Controlfile Checkpointed at scn: 0x0000. 00091e88 04/16/2014 13:54:24Thread: 0 rba :( 0x0. 0.0)......The database checkpoint SCN number in bold and red. B) The number of data file checkpoints, SCN numbers, and stop SCN numbers stored in the control file:**************************************** ***********************************DATA FILE RECORDS********************************

Parameter file of Oracle Storage Structure

Oracle has many parameter files, but the most important one is database parameter files. Database parameter files include pfile and spfile. Pfile must be manually modified. It is a text file. Oracle has many parameter files, but the most important one is database parameter files. Database parameter files include pfile and spfile. Pfile must be manually modified. It is a text file. Oracle has many parameter files, but the most important one is database parameter files. Database parameter fil

Anatomy of SQLSERVER Article 2 reverse the data page header)

fieldDataTypes and their order We can use the dbcc page command to fill in some randomDataGo inDataPage, And thenPageDump out PageNo. Is ): DBCC TRACEON (3604)DBCC PAGE (TextTest, 1, 101, 2) The result is divided into two parts. First, we get the formatted dbcc page.PageContent.SecondSome are 96 bytesPageHeader Now, we need to find outPageHeadersDataValue correspondingDataWhat is the type? For simplicity, we need to pay attention to some unique

Reflection (reflection) in. Net-part.3

attribute { Public class message {}Public class testclass {// Add the obsolete feature[Obsolete ("use the new sendmsg (Message MSG) overload method")]Public static void showmsg (){Console. writeline ("this is the old sendmsg () method ");} Public static void showmsg (Message MSG ){Console. writeline ("New sendmsg () method ");} } Class program {Static void Main (String [] ARGs ){Testclass. showmsg ();Testclass. showmsg (New message ());}}} Now, when running this code, we will find that th

Complexity of bitlocker and trust

developing a security solution. However, bitlocker does not seem to belong to either of the two scenarios. It is a good omen to have at least one competent encryption person involved in development and backed up by abundant resources. About trust Not long ago, Phil Zimmerman (creator of PGP encryption) shared some empirical rules with me. If there is a "Developer's security creed", his suggestions will undoubtedly be placed in chapter 1. Although his views are not specific to bitlocker, the des

Logs are not as simple as you think.

All those who have been in contact with SQL Server should now know that transaction log is an important part of any SQL Server database. Talking about logs is one of my favorite topics. Some common misunderstandings about logs may be a long article. In the past two years, I have made numerous conferences named "How simple is simple recovery?" The same report will be made at the DevTeach/SQLTeach conference held in Montreal, Canada on April 9, May this year. Although I cannot describe all the de

Example or tutorial of multiple round-trip communication with phpsocket persistent connection

seems that the client cannot maintain a persistent connection, because "if the client receives the request, it will read the sent information and then respond, close the connection after the response" Hope you can give me some advice on the implementation process of php socket persistent connection for multiple round-trip communication, or give a tutorial or an example. ------ Solution ---------------------- You are not in the loop. socket_close // Can you just close the connection? ------ Sol

Network-based RedHatLinux unattended installation

references 1 and 2. This article will focus on the reference materials that do not involve partial and unattended installation functions. Hardware and software requirements To perform automatic installation as described in this article, you need the following hardware and software resources: One PC machine is used as the startup and installation server (other architecture machines can also be used) The network card of a PC to be installed must have PXE support The above two machines have been c

Session principle Data structure

for most of the time, which is an unwarranted waste of resources. So the original design of HTTP is the default short connection, that is, the client and the server to complete a request and response after the disconnection of the TCP connection, the servers will not be able to predict the next action of the client, it does not even know that the user will not be able to access again, so the HTTP protocol to maintain the user's access state is completely unnecessary ;3. Passing part of the comp

Knowledge about Linux bare Devices

For more information about Linux bare devices-Linux Enterprise applications-Linux server applications, see the following. The following are 15 bare Linux devices for your reference. 1. What is a Linux bare device? Character device? Block device? Bare device: it is also called a raw partition. It is a special character device that is not formatted and not read by Unix/Linux Through the file system. A bare device can be bound to either a partition or a disk. Character device: the read/write ope

Coding and pattern------"Designing data-intensive Applications" Reading notes 5

in coding. The description of XML is very precise, but it is too lengthy. The popularity of JSON is largely due to its built-in support in Web browsers (since it is a subset of JavaScript) and its simplicity with respect to XML. CSV is another popular language-independent format, albeit with no strong functionality. JSON, XML, and CSV are all text formats and therefore have some readability. But they also have the following subtle qu

Python Network Programming Learning Notes (III): Socket network server _python

sol_socket, meaning the SOCKET option you're using. It can also set protocol options by setting a special protocol number, whereas most protocol options are clear for a given operating system, so for simplicity, they are rarely used for applications designed for mobile devices. The optname parameter provides special options for use. The settings for the available options are slightly different depending on the operating system. If level has selected

Reflection (reflection characteristics) in. Net-Part.3

given.Namespace Attribute {public class Message {}public class TestClass {Add Obsolete attribute[Obsolete ("Use the new Sendmsg (Message msg) overloaded method")]public static void ShowMsg () {Console.WriteLine ("This is the old Sendmsg () method");}public static void ShowMsg (Message msg) {Console.WriteLine ("New Sendmsg () method");}}Class Program {static void Main (string[] args) {Testclass.showmsg ();Testclass.showmsg (New Message ());}}}Now run this code, we will find a warning: warning CS

Python Network Programming Learning Note (III): Socket network server

is being used. It can also set protocol options by setting a special protocol number, but for a given operating system, most protocol options are clear, so for simplicity, they are rarely used for applications designed for mobile devices. The optname parameter provides special options for use. The settings for the available options vary slightly depending on the operating system. If level Sol_socket is selected, some common options are shown in the f

Summary of Linux bare Devices

Linux bare device Summary-Linux Enterprise Application-Linux server application information. The following is a detailed description. In the past few days, I have looked at the management of bare devices in linux, made some notes, and did not dare to share them as follows: (The content of the note is not necessarily correct. If any error occurs, please point it out) 1. What bare devices? Character device? Block device? Bare device: it is also called a raw partition. It is a special character d

Python network programming study notes (III): socket network server

specific structure is as follows: Setsockopt (level, optname, value) Level defines which option will be used. It is usually SOL_SOCKET, which indicates the socket option in use. It can also set protocol options by setting a special protocol number. However, for a given operating system, most protocol options are clear, so for simplicity, they are rarely used for apps designed for mobile devices. The optname parameter provides special options. The set

Python Network Programming Study Notes (III): socket network server

also set protocol options by setting a special protocol number. However, for a given operating system, most protocol options are clear, so for simplicity, they are rarely used for apps designed for mobile devices. The optname parameter provides special options. The setting of available options varies slightly depending on the operating system. If SOL_SOCKET is selected for level, the following table lists some common options: Option Mean

Deep understanding of dynamic libraries

vb5 to compile the interface and define the display function. Create a project, add a module file, and define our display function (callback function) in the module File: Public sub showresult (result as long) form1.print result 'is displayed in a simple simulation. end sub In addition, the dynamic library output function is described as follows: declare sub testshow lib "test32.dll" (byval show as long, Param as any) , put a command button on the form and add the following Code : privat

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