Ò׽ؽØͼÈí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

PBÁ¬½ÓMYSQLÊý¾Ý¿â

È¥mysqlµÄ¹Ù·½ÍøÕ¾ÏÂÔØodbc connector(http://dev.mysql.com/downloads/connector/odbc/3.51.html)
ÏÂÔصÄÊÇmysql-connector-odbc-noinstall-3.51.rar
½âѹºóÖ±½ÓÔËÐÐÎļþ¼ÐÖÐµÄ Install.bat Åú´¦ÀíÎļþ
mysql-connectorÓкü¸ÖÖ£¬Ñ¡ÔñÒ»¸ö×Ô¼ºÏ²»¶µÄ¼´¿É¡£
ÔÚxpÖдò¿ªODBCÊý¾ÝÔ´¹ÜÀíÆ÷£¨¿ØÖÆÃæ°å£­¡·¹ÜÀí¹¤¾ß£­¡·ODBCÊý¾ÝÔ´¹ÜÀíÆ÷£©£¬“Ìí¼Ó”°´Å¥£¬È»ºóÔÚÁбíÖÐÑ¡Ôñ“MySQL ODBC 3.51 Driver”È»ºó¸ù¾ÝÌáʾÌîдÒÑÓеÄmysqlÊý¾Ý¿âµÄÏà¹ØÐÅÏ¢¼´¿É¡£“OK” Êý¾ÝÔ´µÄÌí¼ÓÍê³É¡£
´ò¿ªPB£­¡·¿ØÖÆÃæ°åÖÐDatabse»­°å->ODB ODBC(ÓÒ¼ü)£­¡·New profile->connection Ñ¡ÏÖÐÌîдmysqlÊý¾Ý¿âÏà¹ØÐÅÏ¢ ¼´¿É¡£
 
// Profile xxx
SQLCA.DBMS = "ODBC"
SQLCA.AutoCommit = False
SQLCA.DBParm = "ConnectString='DSN=Mysql_odbc;UID=root;PWD=root'"
connect using sqlca;
ÒÔÉÏÓï¾ä¿ÉÒÔ´ÓdatabaseÃæ°åÖÐpreviewÑ¡ÏÖеõ½¡£
Êý¾Ý´°¿ÚÑ¡ÔñÏàÓ¦µÄÊý¾Ý´°¿Ú¿Ø¼þºó
string getv
getv = dw_1.getitemstring(2,2)
messagebox("ÓÑÇéÌáʾ","È¡³öµÄֵΪ" + getv)//ÏÔʾÊý¾Ý


Ïà¹ØÎĵµ£º

MYSQLÒѾ­ÉúЧµÄÉèÖúÍ״̬²éѯÃüÁî

ÒÔÏÂÃüÁî¿ÉÒÔÔÚÈκÎÒѾ­Á¬½ÓÉÏMYSQL·þÎñÆ÷µÄ¿Í»§¶ËÉÏÖ´ÐС£
show full processlist ;
kill 57725;#ɱµôÉÏÃæ²éµ½µÄij¸öµ¼ÖÂ×èÈûµÄÁ¬½Ó
SELECT @@profiling;
SET profiling = 1;
SHOW PROFILES;
SHOW PROFILE for QUERY 1;
#ϵͳÉèÖÃ
show variables like '%key%';
show variables like '%key%';
show variables l ......

MySQLѧϰ±Ê¼Ç

Ò»¡¢MySQL»ù±¾ÃüÁºÏ£º
1¡¢  create database mydata£»//´´½¨Êý¾Ý¿â
2¡¢  use mydata; //ÔÚmydataÕâ¸öÊý¾Ý¿âϹ¤×÷
3¡¢  create table dept    //ÔÚmydataÊý¾Ý¿âÏ´´½¨±ídept
(
deptno int primary key,
dname varchar(14),
loc varchar(13)
);
 
create table emp  / ......

mysql innodb ÐÔÄÜÓÅ»¯

ĬÈÏÇé¿öÏ£¬innodbµÄ²ÎÊýÉèÖõķdz£Ð¡£¬ÔÚÉú²ú»·¾³ÖÐÔ¶Ô¶²»¹»ÓÃ
±ÈÈç×îÖØÒªµÄÁ½¸ö²ÎÊý
innodb_buffer_pool_size
ĬÈÏÊÇ8M
innodb_flush_logs_at_trx_commit ĬÈÏÉèÖõÄÊÇ1 Ò²¾ÍÊÇͬ²½Ë¢ÐÂlog(¿ÉÒÔÕâôÀí½â)
innodb_buffer_pool_size£º
ÕâÊÇInnoDB×îÖØÒªµÄÉèÖ㬶ÔInnoDBÐÔÄÜÓоö¶¨ÐÔµÄÓ°Ï졣ĬÈϵÄÉèÖÃÖ»ÓÐ8M£¬ËùÒÔ ......

MySQLÁÙʱ±í½¨Á¢

MySQL½¨Á¢ÁÙʱ±íµÄÓï¾äÈçÏÂ:
CREATE TEMPORARY TABLE tmp (
article INT(4) UNSIGNED ZEROFILL DEFAULT '0000' NOT NULL,
price DOUBLE(16,2) DEFAULT '0.00' NOT NULL);
--LOCK TABLES article read;
--ÏȲåÈëÊý¾Ýµ½ÁÙʱ±í
INSERT INTO tmp SELECT article, MAX(price) from shop GRO ......

mysqlÐÔÄÜÓÅ»¯µÄ²ÎÊý¼ò½é


1)¡¢back_log£º
ÒªÇó MySQL ÄÜÓеÄÁ¬½ÓÊýÁ¿¡£µ±Ö÷ÒªMySQLÏß³ÌÔÚÒ»¸öºÜ¶Ìʱ¼äÄڵõ½·Ç³£¶àµÄÁ¬½ÓÇëÇó£¬Õâ¾ÍÆð×÷Óã¬È»ºóÖ÷Ï̻߳¨Ð©Ê±¼ä(¾¡¹ÜºÜ¶Ì)¼ì²éÁ¬½Ó²¢ÇÒÆô¶¯Ò»¸öÐÂÏ̡߳£ 
back_logÖµÖ¸³öÔÚMySQLÔÝʱֹͣ»Ø´ðÐÂÇëÇó֮ǰµÄ¶Ìʱ¼äÄÚ¶àÉÙ¸öÇëÇó¿ÉÒÔ±»´æÔÚ¶ÑÕ»ÖС£Ö»ÓÐÈç¹ûÆÚÍûÔÚÒ»¸ö¶Ìʱ¼äÄÚÓкܶàÁ¬½Ó£¬ÄãÐèÒªÔ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØͼ | ¸ÓICP±¸09004571ºÅ