Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

mysqlÆô¶¯ºó¼ÓÔØÊ±¼äÌ«³¤...

´ÓÆô¶¯µ½ÄÜÕý³£ÔËÐÐ,´ó¸ÅÒª15µ½20·ÖÖÓ×óÓÒ

ÏÖÏóÊÇ,Æô¶¯ÒÔºómysql½ø³ÌÔÚÈÎÎñ¹ÜÀíÆ÷ÀïÒѾ­¿ÉÒÔ¿´µ½ÁË,µ«ÊÇnetstat -anoûÓп´µ½Óнø³ÌÔÚ¼àÌý3306¶Ë¿Ú,ÉÏÃæÊý¾Ý¿â¶¼²»ÄÜ·ÃÎÊ
Ö±µ½15-20·ÖÖÓºó,ÄÜ¿´µ½mysqlÔÚ¼àÌý3306ÁË,Êý¾Ý¿â²Å¿ÉÒÔÕý³£·ÃÎÊ

ÓÐÎÊÌâµÄÕâ¸ömysqlÀïÓÐ40¸ö×óÓÒµÄÊý¾Ý¿â
²»¹ýÎÒ»¹ÓÐÒ»¸ömysqlÀïÃæÓÐ80¸öÊý¾Ý¿â,Æô¶¯Ê±ÊÇÖ±½Ó¾Í¿ÉÒÔÕý³£Æô¶¯µÄ


ÎÊÌâ¿ÉÄܳöÔÚÄÄÀïÄØ,ÓÐûÓа취¿ÉÒÔ¼ì²âµ½ÊÇÄÄÀï³öÁËÎÊÌâ?»òÕßÊÇÆäÖÐij¸öÊý¾Ý¿âµ¼ÖµÄ?
ÒýÓÃÖ±µ½15-20·ÖÖÓºó,ÄÜ¿´µ½mysqlÔÚ¼àÌý3306ÁË,Êý¾Ý¿â²Å¿ÉÒÔÕý³£·ÃÎÊ


ÊÇÓÐЩ³¤ÁË£¬¿´Ò»ÏÂÄãµÄMYSQLµÄÈÕÖ¾ºÍÄãµÄ²Ù×÷ϵͳµÄÈÕÖ¾ÖÐÓÐʲôÒì³£µÄ¡£

mysqlÈÕÖ¾£¬¿´ÄĸöÄØ£¬ÊÇ¿´²Ù×÷µÄ¶þ½øÖÆÈÕÖ¾Â𣬻¹ÊÇÊ²Ã´ÄØ

general log
error log


ÎÒ¿´¹ýÕâÁ½¸öÈÕÖ¾£¬ÆäÖÐerrorlogÀïÃæ¾ÍÊÇÕý³£µÄÍ£Ö¹ºÍÆô¶¯ÐÅÏ¢

¶þ½øÖÆÈÕÖ¾Ò²Ö»ÊǼǼmysqlµÄÈÕ³£²Ù×÷£¬ÔÚ»¹Ã»Õý³£ÔËÐÐ֮ǰ£¬Õâ¶Îʱ¼äҲûÄÚÈÝ

ϵͳ¼àÌý ¶Ë¿ÚÑÓ³Ù Äã»»¸ö¶Ë¿ÚÊÔÊÔ 


Ïà¹ØÎÊ´ð£º

apache+PHP+mysqlÔÚwin7ÏÂʹÓÃ

ÈçÌ⣬ÕâÈý¸öÔÚwin7ÏÂʹÓûáÓÐʲô¼æÈÝÐÔÎÊÌâÂð£¿
ÓÉÓÚÎÒ×î½üÔÚʹÓÃwin7£¬¾ÍÀÁµÃ½øxpÁË£¡
×Ô¼ºÓÃwindows 2008ÓÐÒ»Äê¶àÁË£¬Ã»³öÏÖÈκÎÎÊÌâ¡£

win7²âÊÔ°æÒ²Óùý£¬²»»áÓÐʲôÎÊÌâµÄ£¬·ÅÐÄ¡£

µ±È»Äã×î ......

mysql:´´½¨Ë÷Òý³ö´í

´ó¼ÒºÃ£¬ÎÒÔÚ´´½¨Ë÷Òýʱ£¬³öÏÖ´íÎóÌáʾ£¬´úÂëÈçÏ£º

create uique index stu_cou_index on student_info.results (student_id, course_id);
show index from student_info.results;

±£´æÎªindex ......

MYSQLÖиù¾Ý×Ö¶ÎÖµÅжϷµ»Ø²»Í¬µÄÖµ

ÔÚmysqlÖÐÓÐÒ»ÕÅ±í£¬ÓÐÈý¸ö×Ö¶Îtotal,max, min£¬¶¼ÊÇintÐ͵ÄÖµ£¬¿ÉÒÔдһ¸ösqlÓï¾äÍê³É¹¦ÄÜ£º
¸ù¾ÝÿÌõ¼Ç¼ÖУ¬Èç¹ûtotal>max,·µ»Ø2£¬Èç¹ûtotal <min·µ»Ø1£¬Èç¹û¶¼Ìõ¼þ¶¼²»·ûºÏ·µ»Ø0¡£¼±Ç󣡣¡£¡£¡
mysql? ......

Winform+MySQL×öÏîÄ¿

Winform+MySQL×öÏîÄ¿£¬ÔÚ×¢ÖØÐÔÄܵÄÇé¿öÏ£¬ÎÒ¸ÃÈçºÎÈ¥Íê³ÉÕâÀàÐ͵ÄÏîÄ¿ÄØ£¡
Çë¸÷λ¸øÒÔÌáʾ¡£
ÄãÕâ¸ö·¶Î§Ì«¹ãÁË£¬ÎÒ˵2µãÖØÒªµÄ°É
1.WINFORM³ÌÐòÊǵ¥¶ÀÔËÐеÄCS³ÌÐò£¬ºÍBS²»Í¬£¬BSµÄѹÁ¦Ê¼ÖÕ¶¼ÔÚSERVERÉϵ쬶ÔC ......

oracle ¶ÔÓ¦µÄMySQLµÄÓï¾ä

orcle Óï¾ä create table book1(name, price) as select book_name, price form book;
¶ÔÓ¦µÄMySQLµÄÓï¾äÊÇʲô

create table book1 as select book_name, price form book; ÕâÑùÔÚMySQLÀï¿ÉÒÔ£¬µ«ÊÇÈ´² ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ