MYSQLµÄһЩС¼Ç
ÏÂÎç¿´ÁËÒ»¶ÎPHP100µÄÊÓÆµ¡£
Ò²ËãÓеãÊÕ»ñ¡£
ÀïÃæµÄÒ»¶Î×ÔдµÄfindallµÄSQLº¯Êý£º
public function findall($table) {
$this->query("SELECT * from $table");
}
ÔÀ´Ö»ÊÇÕâô¼òµ¥£¬¸Õ»¹ÔÚ˼¿¼¡£
ʹÓÃÁËTAB¼üÉÏÃæµÄ¶ÙºÅÀ´ÐÞÊÎMYSQLÀïµÄ×Ö¶ÎÃû£¬È磺
UPDATE tablename SET `fieldname`='values' where `fieldname`='values'
ÒÔǰ¶¼Ã»ÓÐÕâÖÖϰ¹ß£¬Ö±½Ó×Ö¶ÎÃû¶¼²»¼ÓÐÞÊΣ¬¿´À´ÕâÊǸöºÃϰ¹ß¡£
ÍíÉÏ»¹ÒªÔÙ¿´Ò»µã£¬ºÃ¾ÃûÓÐд³ÌÐòÁË£¬ÓÖ¿ªÊ¼Óгɾ͸ÐÁ˺Ǻǡ£
Ïà¹ØÎĵµ£º
Æô¶¯£ºnet start mySql;
¡¡¡¡½øÈ룺mysql -u root -p/mysql -h localhost -u root -p databaseName;
¡¡¡¡ÁгöÊý¾Ý¿â£ºshow databases;
¡¡¡¡Ñ¡ÔñÊý¾Ý¿â£ºuse databaseName;
¡¡¡¡Áгö±í¸ñ£ºshow tables£»
¡¡¡¡ÏÔʾ±í¸ñÁеÄÊôÐÔ£ºshow columns from tableName£»
¡¡¡¡½¨Á¢Êý¾Ý¿â£ºsource fileName.txt;
¡¡¡¡Æ¥Åä× ......
ÈçºÎµ¼Èë.sqlÎļþµ½mysqlÖУ¿
C:\mysql\bin>mysql -u Óû§Ãû -p Êý¾Ý¿âÃû < c:/test.sql (source "c:\adsense.sql" )
ÖмäµÄ¿Õ¸ñÊÇÒ»¸ö¿Õ¸ñλ¡£
ͬʱʹÓÃ200¶àMBµÄsqlÎļþ¡£
ÀýÈ磺
C:\Program Files\MySQL\bin>mysql -u root -p myrosz & ......
Ê×ÏÈ·ÖÎöÂÒÂëµÄÇé¿ö
1.дÈëÊý¾Ý¿âʱ×÷ΪÂÒÂëдÈë
2.²éѯ½á¹ûÒÔÂÒÂë·µ»Ø
¾¿¾¹ÔÚ·¢ÉúÂÒÂëʱÊÇÄÄÒ»ÖÖÇé¿öÄØ£¿
ÎÒÃÇÏÈÔÚmysql ÃüÁîÐÐÏÂÊäÈë
show variables like '%char%';
²é¿´mysql ×Ö·û¼¯ÉèÖÃÇé¿ö:
mysql> show variables like '%char%';
+--------------------------+---------------------------------------- ......
mysqlÓÐÒ»¸ö¹¦ÄܾÍÊÇ¿ÉÒÔlogÏÂÀ´ÔËÐеıȽÏÂýµÄsqlÓï¾ä£¬Ä¬ÈÏÊÇûÓÐÕâ¸ölogµÄ£¬ÎªÁË¿ªÆôÕâ¸ö¹¦ÄÜ£¬
ÒªÐÞ¸Ämy.cnf»òÕßÔÚmysqlÆô¶¯µÄʱºò¼ÓÈëһЩ²ÎÊý¡£Èç¹ûÔÚmy.cnfÀïÃæÐ޸ģ¬ÐèÔö¼ÓÈçϼ¸ÐÐ
long_query_time = 1
log-slow-queries = /var/youpath/slow.log
log-queries-not-using-indexes
long_query_time ÊÇÖ¸Ö´ ......
1 ÉèÖÃphpMyAdmin
Language:Chinese simplified (zh-utf-8)
MySQL ×Ö·û¼¯£ºUTF-8 Unicode (utf8)
MySQL Á¬½ÓУ¶Ô gbk_chinese_ci
2 ´´½¨Êý¾Ý¿âʱ
ÕûÀíÉèÖÃ³É gbk_chinese_ci
3 ÓÃSQL½¨Á¢±íÖÐ
ENGINE=MyISAM DEFAULT CHARSET=gbk;
ENGINE=InnoDB DEFAULT CHARSET=gbk AUTO_INCREMENT=40 ;
4 ¼ì²é±í½á¹¹ÖÐ
varcha ......