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Oracle Indexed Dump leaf block

The Oracle index leaf block is dumpF:\oracle\product\10.2.0\db_1\bin>sqlplus/as sysdbasql*plus:release 10.2.0.4.0-production on Thu Apr 9 06:28:17 20 15Copyright (c) 1982, Oracle. ----> Get a TRC file under UdumpDump file

Berkeley DB Memory Management

A typical buddy system. Code in ENV/ENV_ALLOC.CData:Alloc_layout: A data structure that manages the entire block of memory (that is, a region of BDB). Place at the beginning of this memory. Sh_tailq_head (__ADDRQ) ADDRQ; Address queue. Sort by

Dfsclient Technical Insider (write data--data write process)

The following is my research source code results, this article is dedicated to me and my small partners, shortcomings, welcome treatise-------------------------------------to Shedoug and other people. Note: Hadoop version 0.20.2, there are children

C language Article editing implementation code

Problem:Article editingFunction: Enter a page of text, the program can count the number of words, numbers, spaces.Static storage of a page of articles, a maximum of 80 characters per line, a total of n rows; (1) The number of English letters and

Poj 3415 SAM suffix Automatic Machine

Poj 3415 SAM suffix Automatic MachineQuestion: Give two strings and ask all the substrings of the two strings (if the positions are different, the two substrings are repeated ), the number of public substrings with a length greater than or equal to

Mysql string processing functions

I. Concise summaryASCII (char) returns the ASCII value of a characterBIT_LENGTH (str) returns the bit length of the string.CONCAT (s1, s2 ..., Sn) replace s1, s2 ..., Connect the sn to a stringCONCAT_WS (sep, s1, s2 ..., Sn) replace s1, s2 ...,

HDU 4391-paint The Wall-Getting started with chunked hashing

Title Link: http://acm.hdu.edu.cn/showproblem.php?pid=4391Test instructionsGive an interval, there are two kinds of operation1: The interval of x to Y is dyed as Z2: Query the number of color z in the range x to YIdeas:The z maximum 2^31-1 of the

Leetcode "Dynamic planning": Scramble String

Topic linksTitle Requirements:Given A string S1, we may represent it as a binary tree by partitioning it to the Non-empty substrings Recursivel Y.Below is one possible representation of S1 = "great" : Great / gr eat/\ / g r E

Another common paging Stored Procedure supports table alias and multi-table joint query of SQL statements

I haven't been writing anything for a long time. Today I am free to share some of my personal experiences, that is, the paging storage process. This issue should be a repeat by the old man, there are already enough types of general stored procedures

Some concepts for sending SMS corrections

Please take a look at the http://dev.csdn.net/article/49/49606.shtm before reading this article This article only describes what I understood wrong when I checked the web page for Engineering. I hope it will help you.       1: Each text message can

Use OpenSSL authentication mechanism to complete version control

OpenSSL has powerful functions, such as seamless Io filtering, secure sockets, and data encryption and decryption, in fact, the certificate authentication function of OpenSSL can implement the version control function of the C/S Mode Program. The

Int osip_www_authenticate_to_str and osip_message_set_www_authenticate

1. analysis: The function first obtains the length of the authentication field, and then dynamically allocates memory. It copies data of the osip_www_authenticate_t type into a string. The target address is DEST, but the memory leakage is also a

String replacement function (the speed exceeds the stringreplace provided by Delphi)

// String replacement function// Author QQ 287412388// This code can be copied and modified at will. If any problem is found, please notify me.// Function _ stringreplace _ (const SRC, oldstr, newstr: string): string; ConstDefault_list_buff_size = 20

Explanation of phdr and tcphdr (skb_header_pointer Function Analysis)

Obtain TCP information under Linux 2.6.26:Tcph = skb_header_pointer (SKB, protoff, sizeof (tcph), & tcph); // skb_header_pointer is a library functionSkb_header_pointer FunctionThis function is simple and defined as follows:/* # Include */Static

Socket send Recv

Int send (socket S, const char far * Buf, int Len, int flags ); Both the client and server applications use the send function to send data to the other end of the TCP connection. The client program generally uses the send function to send requests

/proc/mtd the meaning of each parameter--Linux kernel

Reading the MTD partition table from the/proc virtual file system: CAT/PROC/MTDMTD. Name = Raspi,. Size = 0x00400000 (4M). Erasesize = 0x00010000 (64K) . numeraseregions = 0Creating 6 MTD partitions on "RASPI":0x00000000-0x00400000: "All"0x00000000-0

O (NLOGN) algorithm for longest ascending subsequence (LIS) length

Typical variants of the longest ascending subsequence (LIS), the n^2 of the familiar is timed out. The LIS problem can be optimized for NLOGN algorithms.Definition D[k]: The last element of the ascending subsequence of the length k , if there are

C + + large number template (recommended) _c language

Use the operator overloading method in C + + to implement mathematical operations between large numbers, including addition, subtraction, multiplication, division, n-th, modulo, size comparison, assignment and overload of input stream, output stream.

Manacher Algorithm Summary

Original http://blog.csdn.net/dyx404514/article/details/42061017 Manacher algorithmThe algorithm summarizes the third bomb manacher algorithm, the previous two string phase algorithm--KMP and expand KMP, this time to summarize a string algorithm,

6 solutions for renaming uploaded images based on php _ php instance

This article introduces how to upload and rename images in php. For more information, see I. Application scenarios: the auto-increment numbers returned from the database cannot be used to rename the uploaded image. This is determined by the process

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