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
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
......
use mysql
update user set Password=password('newpassword') where User='root';
flush privileges;
Ê×ÏÈÒªÉùÃ÷Ò»µã£¬´ó²¿·ÖÇé¿öÏ£¬ÐÞ¸ÄMySQLÊÇÐèÒªÓÐmysqlÀïµÄrootȨÏ޵ģ¬
ËùÒÔÒ»°ãÓû§ÎÞ·¨¸ü¸ÄÃÜÂ룬³ý·ÇÇëÇó¹ÜÀíÔ±¡£
·½·¨Ò»
ʹÓÃphpmyadmin£¬ÕâÊÇ×î¼òµ¥µÄÁË£¬ÐÞ¸Ämysql¿âµ ......
ÈçÈô×ªÔØ£¬Çë×ðÖØ¸öÈËÀͶ¯£¬Îñ±Ø×¢Ã÷Ôʼ³ö´¦£º(http://blog.csdn.net/iihero/archive/2010/05/13/5585039.aspx)
±¾ÎÄΪiihero@CSDNÔ´´¡£
ÔÚǰһƪ¶ÌÎÄÀïÌáµ½ÁËmy.ini/cnfµÄ¼ÓÔØË³Ðò£ºC:\WINDOWS\my.cnf->C:\WINDOWS\my.ini->C:\my.cnf ->C:\my.ini ->$installdir\my.ini¡£(%MYSQL_HOME%\my.ini)-> ......
¶ÔÓÚÿ¸öÀàÐÍÓµÓеÄÖµ·¶Î§ÒÔ¼°²¢ÇÒÖ¸¶¨ÈÕÆÚºÎʱ¼äÖµµÄÓÐЧ¸ñʽµÄÃèÊö¼û7.3.6 ÈÕÆÚºÍʱ¼äÀàÐÍ¡£
ÕâÀïÊÇÒ»¸öʹÓÃÈÕÆÚº¯ÊýµÄÀý×Ó¡£ÏÂÃæµÄ²éѯѡÔñÁËËùÓмǼ£¬Æädate_colµÄÖµÊÇÔÚ×îºó30ÌìÒÔÄÚ£º
mysql> SELECT something from table
WHERE TO_DAYS(NOW()) - TO_DAYS(date_col) select DAYOFWEEK('1998-02-03');
-&g ......