MySQLµÄcµ÷ÓÃ
1. ¸½¼ÓÏîÒ»¶¨ ¼ÓÉÏlibmysql.lib¡£
2. include Ò»¶¨¼ÓÉÏ mysqlµÄinclude£¨ÒòΪҪÅÜÕâ¹Ø¼üÒ»¾ä
#include <mysql.h>£©
3 lib Ò»¶¨¼ÓÉÏ mysqlµÄlib
ºÃÁËÏÂÃæÊÇʵÀýºÍphpº¯Êý»ù±¾Ò»ÑùµÄ¡£±¾È˲»¿ÉÄܸøÄã·ÒëÎĵµ£¬º¯Êý²»¶®×Ô¼º¿´¡£
#include
<windows.h>//ÓÃÕâ¸ö·½±ã£¬°üº¬winsock.hËùÒÔ°üº¬winsockÒ²¿ÉÒÔ
#include <iostream>
#include <mysql.h>
using namespace std;
int main( int argc, char * argv[] )
{
//ÕâÀàÐͱð´íÁË£¬¾ßÌå¿´Îĵµ
MYSQL mysql;
MYSQL *pdata;
MYSQL_RES
*result;
MYSQL_ROW
row;
char sqlcommand[80];
mysql_init(&mysql);//Ò»¸ö³õʼ»¯
mysql_options(&mysql,MYSQL_READ_DEFAULT_GROUP,"Gamer");
//¿ØÖÆÁ´½ÓÐÐΪµÄ
pdata=mysql_real_connect(&mysql,"localhost","root","123456","gamer",0,NULL,0);
//Êý¾Ý¿âÁ´½Ó
if(pdata)
{
cout<<"connect
successful!!"<<endl;
}
if(mysql_select_db(pdata,"gamerdata"))
{
cout<<"select_db
successful!!"<<endl;
}
//È»ºóÑ¡ÔñÊý¾Ý¿âÁË£¬µ±È»ÓÃsqlÒ»Ñù£¬º¯Êý¿´×Å·½±ãµã
sprintf(sqlcommand,"select * from
gamerdata");
mysql_query(pdata,sqlcommand);
//Õâ¾ä¸ÉʲôµÄ²»ÓÃÎÒ·Ñ´½ÉàÁË
result =
mysql_use_result(pdata);
//»ñÈ¡¼Ç¼¼¯
row = mysql_fetch_row(result);
//°´Êý×鷽ʽ°ÑÊý¾Ý·Åµ½rowÖУ¬µ±Ç°ÐеÄ
//¿´ËùÓÐÐмӸöÑ»·¾ÍºÃ£¬Óαê×Ô¼º»áÅÜ£¬²»ÀÍ´ó¼Ò·ÑÐÄ¡£
cout<<row[1];
//¿ÉÒÔÊä³öÁË£¬´ó¹¦¸æ³É
mysql_close(pdata);
//±ðÍüÁË¿ªµÆ£¬ÍüÁ˹صÆ
}
Ïà¹ØÎĵµ£º
ºÜ¾ÃûÓÐЩһЩÓÐÓô¦µÄµÄ¶«Î÷ÁË£¡½ñÌì¾Í²»ºúÂÒµÄд¶«Î÷ÁË!дһЩÓÐÓõ졵±È»Ç°ÌáÏÂÊǺܸÐлºÜ¶à¾³£À´ÎÒ²©¿ÍµÄÅóÓÑһϣ¡¶àл´ó¼Ò£¡£¡£¡£¡£¡
½ñÌìдµÄÊǹØÓÚphp»·¾³¼ÜÉèµÄµÚÒ»ÖÖ·½Ê½£¡µ±È»ÎҾͲ»½ØÍ¼ÁË£¡´ó¼ÒÖ»Òª°´ÕÕ²Ù×÷¾Í¿ÉÒÔʵÏֵģ¡
Ò»¡¢°²×° PHP £º±¾ÎÄPHP°²×°Â·¾¶È¡ÎªD:\php\php4\(Ϊ±Ü»ìÏý£¬PHP5.1.x°æ±¾°²×°Â·¾ ......
< type="text/javascript">
document.body.oncopy = function() {
if (window.clipboardData) {
setTimeout(function() {
var text = clipboardData.getData("text");
......
Ò»°ã¸³Ó踡µãÁеÄÖµ±»ËÄÉáÎåÈëµ½Õâ¸öÁÐËùÖ¸¶¨µÄÊ®½øÖÆÊý¡£Èç¹ûÔÚÒ»¸öFLOAT(8, 1)µÄÁÐÖд洢1. 2 3 4 5 6£¬Ôò½á¹ûΪ1. 2¡£Èç¹û½«ÏàͬµÄÖµ´æÈëFLOAT(8, 4) µÄÁÐÖУ¬Ôò½á¹ûΪ1. 2 3 4 6¡£Õâ±íʾӦ¸Ã¶¨Òå¾ßÓÐ×㹻λÊýµÄ¸¡µãÁÐÒÔ±ãµÃµ½¾¡¿ÉÄܾ«È·µÄÖµ¡£Èç¹ûÏ뾫ȷµ½Ç§·ÖÖ®Ò»£¬ÄǾͲ»Òª¶¨Òåʹ¸ÃÀà ......
Mysql Explain Ïê½â
ת×ÔITPUBhttp://www.itpub.net/viewthread.php?tid=1034410&extra=page%3D1%26amp%3Bfilter%3Ddigest&page=1
Ò».Óï·¨
explain < table_name >
ÀýÈç: explain select * from t3 where id=3952602;
¶þ.explainÊä³ö½âÊÍ
+----+-------------+-------+-------+-------------------+--- ......
Ò»¡¢Á¬½ÓMYSQL¡£
¸ñʽ£º mysql -hÖ÷»úµØÖ· -uÓû§Ãû £pÓû§ÃÜÂë
1¡¢Á¬½Óµ½±¾»úÉϵÄMYSQL¡£Ê×ÏÈ´ò¿ªDOS´°¿Ú£¬È»ºó½øÈëĿ¼mysql\bin£¬ÔÙ¼üÈëÃüÁîmysql -u root -p£¬»Ø³µºóÌáʾÄãÊäÃÜÂë.×¢ÒâÓû§Ãûǰ¿ÉÒÔÓпոñÒ²¿ÉÒÔûÓпոñ£¬µ«ÊÇÃÜÂëǰ±ØÐëûÓпոñ£¬·ñÔòÈÃÄãÖØÐÂÊäÈëÃÜÂë. Èç¹û¸Õ°²×°ºÃMYSQL£¬³¬¼¶Óû§rootÊÇûÓÐÃÜÂëµ ......