Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

[C++]MySQLÊý¾Ý¿â²Ù×÷ʵÀý

»·¾³ÉèÖãº
°²×°ÍêMySQLÖ®ºó£¬½«°²×°Ä¿Â¼ÖеÄincludeĿ¼ÏµÄlibmysql.libÎļþ¿½µ½VS2008°²×°Ä¿Â¼ÖеÄVC\lib\Ï£¬È»ºóÔÚ ÏîÄ¿-Ñ¡Ïî-c/c++-³£¹æ Öеĸ½¼Ó°üº¬Ä¿Â¼ÒÔ¼° Á´½ÓÆ÷-³£¹æ Öеĸ½¼Ó¿âĿ¼ÖмÓÈë“c:\MySQL\include\”£¬²¢ÇÒÔÚ Á´½ÓÆ÷-ÊäÈë Öеĸ½¼ÓÒÀÀµÏîÄÚÌí¼Ó“libmysql.lib”£¬ÕâÑù¼´¿Éʹ±àÒëÆ÷ÕÒµ½mysql.hÍ·Îļþ£¬²¢¿ÉÔÚ³ÌÐòÖÐʹÓÃcÓïÑÔµÄmysql APIÀ´²Ù×÷Êý¾Ý¿â¡££¨Èç¹ûMySQL°²×°Ä¿Â¼ÖÐÎÞincludeĿ¼£¬¿Éµ½MySQL¹ÙÍøÏÂÔØ²¢°²×°MySQL connector for C£¬²¢ÐÞ¸ÄincludeĿ¼·¾¶£©
´úÂëʾÀý£º 
#include <Windows.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <mysql.h> 
#include <iostream>
using namespace std;
int main()
{
    const char user[] = "root";         //username
    const char pswd[] = "root";         //password
    const char host[] = "localhost";    //or"127.0.0.1"
    const char table[] = "test";        //database
    unsigned int port = 3306;           //server port        
    MYSQL myCont;
    MYSQL_RES *result;
    MYSQL_ROW sql_row;
    MYSQL_FIELD *fd;
    char column[32][32];
    int res;
    mysql_init(&myCont);
    if(mysql_real_connect(&myCont,host,user,pswd,table,port,NULL,0))
    {
        cout<


Ïà¹ØÎĵµ£º

MySQLѧϰ(5)IN,GRANT,MD5,EXISTS

1.INµÄÓ÷¨
IN(value,value1,...) valuesµÄ¸öÊý¸úmax_allowed_packetÏà¹Ø£¬SELECT 2 IN (2,4,'STRING');
NOT IN(value,..)ºÍINÓï·¨Ò»Ñù¡£
2.IF NOT EXISTS
CREATE ... IF NOT EXISTS stm; ...¿ÉÒÔʹDATABASE,TABLE,EVENT¡£ÈçCREATE TABLE IF NOT EXISTS t(id INT); 
3.MD5,MySQLÊý¾Ý¿âÌṩÁËmd5¼ÓÃܹ¦Ä ......

MySQLѧϰ(3) ÊÓͼ£¬Óα꣬Óï¾ä¿é¶ù

1.MySQL´´½¨ÊÓͼµÄ¼òµ¥Óï¾äΪ£ºCREATE VIEW view_name  AS SELECT * from TABLE_NAME;
²»ÄܶԴ¥·¢Æ÷´´½¨ÊÓͼ(VIEW)¡£µ«ÊÇÔÚ5.1.4ÖÐÊÇÕâÑùÃèÊöµÄ£¬A view can be created from many kinds of SELECT statements. It can refer to base tables or other views. It can use joins, UNION, and subqueries¡£´óÖÂÒâ˼ÊÇÊÓÍ ......

Mysql×Ö·û±àÂëÂÒÂë½â¾ö·½·¨

µ¼³öÊÇ,ûÓÐÖ¸¶¨±àÂë
·½·¨Ò»  phpmyadmin´¦Àí·½Ê½
  ¼ì²éphp-mbstringÊÇ·ñÓпÉ×°,ûÓа²×°ÉÏ yum -y install php-mbstring
  ´ò¿ªphpmyadmin Öе¼³ö,ÔÙ´Óphpmyadmin µ¼ÈëÊÇѡȡ¶þÖÆ½ø(binary)
  Èç¹û»¹²»ÐÐ,ÔÚmy.cnf mysqldÖмÓÈë default-character=ÄãµÄ±àÂë, ÖØÆômysql ÔÙÊÔ ......

MySQLÖÐselect * for updateËø±íµÄÎÊÌâ


select * for updateËø±íµÄÎÊÌâ
ÓÉÓÚInnoDBÔ¤ÉèÊÇRow-Level Lock£¬ËùÒÔÖ»ÓС¸Ã÷È·¡¹µÄÖ¸¶¨Ö÷¼ü£¬MySQL²Å»áÖ´ÐÐRow lock (Ö»Ëø×¡±»Ñ¡È¡µÄ×ÊÁÏÀý) £¬·ñÔòMySQL½«»áÖ´ÐÐTable Lock (½«Õû¸ö×ÊÁÏ±íµ¥¸øËø×¡)¡£
¾Ù¸öÀý×Ó:
¼ÙÉèÓиö±íµ¥products £¬ÀïÃæÓÐid¸úname¶þ¸öÀ¸Î»£¬idÊÇÖ÷¼ü¡£
Àý1: (Ã÷È·Ö¸¶¨Ö÷¼ü£¬²¢ÇÒÓд˱Ê×ÊÁÏ£¬ ......

MySQLÓëÊÂÎñ (ת)

MySQL5.X¶¼ÒѾ­·¢²¼ºÃ¾ÃÁË£¬µ«ÊÇ»¹ÓкܶàÈËÈÏΪMySQLÊDz»Ö§³ÖÊÂÎñ´¦ÀíµÄ£¬Õâ²»µÃ²»¹ÖËûÃÇÊǹª¹ÑÎŵ쬯äʵ£¬Ö»ÒªÄãµÄMySQL°æ±¾
Ö§³ÖBDB»òInnoDB±íÀàÐÍ£¬ÄÇôÄãµÄMySQL¾Í¾ßÓÐÊÂÎñ´¦ÀíµÄÄÜÁ¦¡£ÕâÀïÃæ£¬ÓÖÒÔInnoDB±íÀàÐÍÓõÄ×î¶à£¬ËäÈ»ºóÀ´·¢ÉúÁËÖîÈçOracleÊÕ
¹ºInnoDBµÈÁîMySQL²»Ë¬µÄÊÂÇ飬µ«ÄÇЩÉÌÒµÉϵĶ·ÕùÓë¼¼ÊõÎ޹أ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ