VCÓÃMYSQLÌṩµÄLIB²éѯÊý¾Ý¿â
#include "winsock.h"
#include "mysql.h"
void query_example(void)
{
MYSQL *pDbCon = NULL;
char *pszHost = "localhost";
char *pszUser = "guest";
char *pszPsw = "";
char *pszDbName = "mysql_db_name";
int iPort = 3306;
pDbCon = mysql_init((MYSQL*) 0);
if (NULL != pDbCon)
{
if (mysql_real_connect(pDbCon, pszHost, pszUser, pszPsw, pszDbName, iPort, NULL, 0))
{
if (!mysql_select_db(pDbCon, pszDbName))
{
pDbCon->reconnect = 1;
char *pszSql = "select * from tb_name";
if (!mysql_query(pDbCon, pszSql))
{
long i = 0;
MYSQL_RES *pReSet = mysql_store_result(pDbCon);
long iFieldNum = mysql_num_fields(pReSet);
long iRecordNum = (long)mysql_num_rows(pReSet);
//printf name of fields
MYSQL_FIELD *pField = mysql_fetch_fields(pReSet);
for (i = 0; i < iFieldNum; i++)
{
//printf("%s, ", pField[i].name);
}
//printf all data
MYSQL_ROW stRow;
while (stRow = mysql_fetch_row(pReSet))
{
//printf row's data
for (i = 0; i < iFieldNum; i++)
{
if (stRow[i] != NULL)
{
//printf("%s ", stRow[i]);
}
}
}
}
}
else
{
//printf("unable to select the database!\n");
}
}
else
{
//printf("can't connect to the mysql server!\n");
}
mysql_close(pDbCon);
}
}
Ïà¹ØÎĵµ£º
<%@ page contentType="text/html; charset=utf-8" language="java" import="java.sql.*" errorPage="" %>
<%
//Á¬½ÓÊý¾Ý¿â
try
{
Class.forName("org.gjt.mm.mysql.Driver").newInstance();
Connection connection= java.sql.DriverManager.getConnection("jdbc:mysql://localhost/dangyuan","root", ......
Ò»£®¹ØÓÚMySQLÊý¾Ý¿â·þÎñÆ÷
MySQL·þÎñÆ÷µÄĬÈϱàÂëÊÇLatin1£¬²»Ö§³ÖÖÐÎÄ£¬ÄÇôÈçºÎÐÞ¸ÄMySQLµÄĬÈϱàÂëÄØ£¬ÏÂÃæÒÔUTF-8ΪÀýÀ´ËµÃ÷¡£
1¡¢ÖÐÖ¹MySQL·þÎñ£¨bin/mysqladmin -u root shutdown£©
2¡¢ÔÚ/etc/ÏÂÕÒµ½my.cnf£¬Èç¹ûûÓоͰÑMySQLµÄ°²×°Ä¿Â¼ÏµÄsupport-filesĿ¼ÏµÄmy-medium.cnf¸´ÖƵ½/etc/ϲ¢¸ÄÃûΪmy.cnf¼´¿É
......
ÔÚÊý¾Ý¿âÓ¦Óã¬ÎÒÃǾ³£ÒªÓõ½Î¨Ò»±àºÅ¡£ÔÚMySQLÖпÉͨ¹ý×ֶεÄAUTO_INCREMENTÊôÐÔÀ´×Ô¶¯Éú³É¡£MySQLÖ§³Ö¶àÖÖÊý¾Ý±í£¬Ã¿ÖÖÊý¾Ý±íµÄ×ÔÔöÊôÐÔ¶¼ÓÐËù²»Í¬¡£
ISAM±í
Èç¹û°ÑÒ»¸öNULL²åÈëµ½Ò»¸öAUTO_INCREMENTÊý¾ÝÁÐÀïÈ¥£¬MySQL½«×Ô¶¯Éú³ÉÏÂÒ»¸öÐòÁбàºÅ¡£±àºÅ´Ó1¿ªÊ¼£¬²¢1Ϊ»ùÊýµÝÔö¡£
µ±²åÈë¼Ç¼ʱ£¬Ã»ÓÐΪAUTO_INCREMENTÃ÷È ......
LinuxϽøÐÐMYSQLµÄC++±à³ÌÆð²½ÊÖ¼Ç
Ê×ÏȰ²×°±ØÐèµÄ¿ª·¢°ü
sudo apt-get install gcc g++ libgcc1 libg++ make gdb
°²×°MYSQLµÄCÓïÑÔ¿ª·¢°ü
sudo apt-get install libmysql++-dev libmysql++2c2a libmysqlclient15-dev libmysqlclient15off
......
2009-05-05
´ò¿ªMySQLÔ¶³Ì·ÃÎÊȨÏÞ
¹Ø¼ü×Ö: mysql
1¡¢¸Ä±í·¨
¡¡¡¡¿ÉÄÜÊÇÄãµÄÕʺŲ»ÔÊÐí´ÓÔ¶³ÌµÇ½£¬Ö»ÄÜÔÚlocalhost¡£Õâ¸öʱºòÖ»ÒªÔÚlocalhostµÄÄÇ̨µçÄÔ£¬µÇÈëmysqlºó£¬¸ü¸Ä "mysql" Êý¾Ý¿âÀïµÄ "user" ±íÀïµÄ "host" Ï´Ó"localhost"¸Ä³Æ"%"
¡¡¡¡mysql -u root -p
mysql>use mysql;
¡¡¡¡mysql>upda ......