db 0

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Mysql source code learning-principles and implementation of user authentication

  The previous sections have tracked Connection Manager and Thread Manager. In the Connection process, there is also an identity authentication process, which is familiar to everyone.   In the process of verifying the user name and password,

The "Android" database is based on the "incremental update" of the script, with no need to modify Java code for each update!

Ideas:1. Of course is based on sqliteopenhelper.oncreate (called when the program is first installed), OnUpdate (called when the program is upgraded)2. Use "Script" (scripting specific method to ask Niang) to do the database upgrade, the file name

python--Distributed crawler

//ServerImportsocket, select, Re, queue, Redis fromMultiprocessingImportPool, Cpu_count fromPymongoImportMongoclienthost='192.168.1.107'connectionlist=[]recv_buffer= 4096000Client_status={}client_num={}redis1= Redis. Redis (host='localhost', port=637

Php-redis Chinese Documents

Php-redis Chinese Document original address: http://www.cnblogs.com/weafer/archive/2011/09/21/2184059.htmlPhpredis is an extension of PHP, the efficiency is quite high with the list sorting function, to create a memory-level module business

MFC detects a file exists, gets the current path, creates a new folder

Directly on the code:See if there is a DB folder under the path to the execution file, and if not, create a new/////////CFileFind CFF;if (CFF. FindFile (_t ("db")) = = 0)//current path, DB folder not found{CString StrText;TCHAR exepath[max_path]={0};

Development practices of X86 operating system kernel using Delphi

----- Old Gill -------- As a rad tool on Windows, Delphi attracts many software companies to develop application-layer software. In addition to the efficiency of rad, the openness of Delphi (open source code, easy to go deep into the underlying

C ++ reading and writing MySQL classic

I have read many articles about how to operate MySQL Databases in C or C ++, and most of them are too difficult. Even some of them do not have good organizational texts, which is hard for beginners to accept, even C ++ or C experts are hard to

Convert a pure IP library to a common text file

The IP database on the network is the most popular in the pure real version. This article does not study the format and only converts it to text format. The format of the pure IP database. This article references Luma's article and lumaqq's

A. Two Problems

Time limit per test 2 secondsMemory limit per test 256 megabytesInput Standard InputOutput Standard output A boy Valera registered on site codeforces as Valera,And wrote his first codeforces round #300. He boasted to a friend Arkady about winning as

Build your own operating system [1]-boot program

I have been reading the Linux 0.11 kernel over the past few days. I am also reading the code of some small operating systems in China, such as learnos, pretty, and Iris .... To combine some of their advantages, first make a simple kernel. I have

Key record supports Chinese, 3389 (original czy)

Key record supports Chinese characters, 3389 (original) Czy 04.11.28 Hook wh_callwndproc (wm_ime_composition), wh_getmessage (wm_char and wm_keyup). The former records Chinese characters, and the latter records special buttons and letter

The joy and hardship of compilation

At the beginning of this semester, I learned the compilation carefully. The program assigned by the teacher was quickly compiled, which undoubtedly gave me great confidence. Every time I see that my programs can be compiled and run, I can't say

Redis. conf

# Redis configuration file example # By default redis does not run as a daemon. Use 'yes' if you need it.# Note that redis will write a PID file in/var/run/redis. PID when daemonized.Daemonize No # When run as a daemon, redis write a PID file in/

Stack Overflow architecture Update-now at 95 million page views a month

Document directory The stats Data Centers Hardware Dev tools Software and technologies used External bits Developers and System Administrators Content More architecture and lessons learned A lot has happened since my first article on

Baidu video collection.

In the past, I started to learn how many things Asp.net can write in C. Today I made a small example of Baidu video collection. I want to share with you the experience.First, analyze the Baidu video search page before writing this program. On

Redis configuration details

# By default redis does not run as a daemon. use 'yes' if you need it. # note that redis will write a PID file in/var/run/redis. PID when daemonized. # redis does not run in daemon mode by default. You can modify this configuration item and use yes

Reading Notes 1-[write the smallest "Operating System" right away]

    Mentioned above Made"Difficult"Decide. This book is in 2009Year 11Month 22It has been more than a year since I bought it every day, and most of the time it is sleeping. After all, it is "x86Assembly"And"Operating System"It sounds quite old

W3l.exe reverse assembly code analysis

After the disassembly code is obtained, we can see how the program operates. Use Ida pro 4.5to install w3l.exe, which has been removed from the shell. After some chewing by IDA, you will get a good-looking typographical code: Loc_401000:; Code xref:

12864 liquid crystal (Serial) driven by stm32 st7920)

  /*************************************** **************************************** ************ File name: 12864.c* Copyright:* Module name: 12864 LCD serial working mode driver driven by st7920* CPU: stm32f103rct6 clock speed: 72 m* Author:*

Comparison of efficiency between C/C ++/perl/ASSEMBLY/Java

Incident I rummaged over the books that spread the case. These books are all about programming and system management. After so many years of working as a programmer, there have been countless projects and software. Every new friend asks me this

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