mysqliÓëmysqlÇø±ð
mysqlÊǷdzּÌÁ¬½Óº¯Êý¶ømysqliÊÇÓÀÔ¶Á¬½Óº¯Êý¡£Ò²¾ÍÊÇ˵
mysqlÿ´ÎÁ´½Ó¶¼»á´ò¿ªÒ»¸öÁ¬½ÓµÄ½ø³Ì¶ømysqli¶à´ÎÔËÐÐmysqli½«Ê¹ÓÃͬһÁ¬½Ó½ø³Ì,´Ó¶ø¼õÉÙÁË·þÎñÆ÷µÄ¿ªÏú
ÓÐЩÅóÓÑÔÚ±à³ÌµÄʱºò£¬Ê¹ÓÃnew mysqli('localhost', usenamer', 'password', 'databasename');×ÜÊDZ¨´í£¬Fatal error: Class 'mysqli' not found in d:\...
mysqliÀ಻ÊÇphp×Ô´øµÄÂð£¿
²»ÊÇĬÈÏ¿ªÆôµÄ£¬winÏÂÒª¸Äphp.ini,È¥µôphp_mysqli.dllÇ°µÄ;,linuxÏÂÒª°Ñmysqli±àÒë½øÈ¥
Ïà¹ØÎĵµ£º
integer »òÕß int
int »òÕß java.lang.Integer
INTEGER
4 ×Ö½Ú
long
long Long
BIGINT
8 ×Ö½Ú
short
short Short
SMALLINT
2 ×Ö½Ú
byte
byte Byte
TINYINT
1 ×Ö½Ú
float
float Float
FLOAT
4 ×Ö½Ú
double
double Double
DOUBLE
8 ×Ö½Ú
b ......
À´Ô´£ºhttp://www.sudone.com/linux/mysql_debug.html
×÷ÕߣºAyou
ÎÒÒ»Ö±ÊÇʹÓÃmysqlÕâ¸öÊý¾Ý¿âÈí¼þ£¬Ëü¹¤×÷±È½ÏÎȶ¨£¬Ð§ÂÊÒ²ºÜ¸ß¡£ÔÚÓöµ½ÑÏÖØÐÔÄÜÎÊÌâʱ£¬Ò»°ã¶¼ÓÐÕâô¼¸ÖÖ¿ÉÄÜ£º
1¡¢Ë÷ÒýûÓн¨ºÃ£»
2¡¢sqlд·¨¹ýÓÚ¸´ÔÓ£»
3¡¢ÅäÖôíÎó£»
4¡¢»úÆ÷ʵÔÚ¸ººÉ²»ÁË£»
1¡¢Ë÷ÒýûÓн¨ºÃ
Èç¹û¿´µ½mysqlÏûºÄµÄcpuºÜ´ó£¬¿ÉÒÔÓ ......
ΪʲôѡÔñÔ´Âë±àÒë°²×°mysql£ºÎÒÔÚʹÓÃrpm»òÕßÊÇyum°²×°Ê±myql£¬ÀÏÊÇÌáʾÎÒÕÒ²»µ½*.sockÎļþ£¬ÕÒÁ˵ã
×ÊÁÏ˵ÊǸðüÊǷǹٷ½°æ±¾£¨Ã÷Ã÷Êǹٷ½ÏÂÔØ µÄ£©£¬ÆäÖÐÔÒòµ½ÏÖÔÚ»¹Ã»ÓиãÇå³þ¡£Ï£ÍûÖªÇéÈËÊ¿¸æÖª¡££¨¿ªÊ¼±àÒëµÄʱºò£¬ÏµÍ³»·¾³Ò»¶¨ÒªÅäÖúã¬GCC£¬GC++...µÈµÈµÄ±àÒëÆ÷Ò»¶¨Òª×öºÃ,±¾È˵ÄcentosÓÉÓÚ¿ªÊ¼
ϵͳ»·¾ ......
Explain MySQL architecture
. - The front layer
takes care of network connections and security authentications, the
middle layer does the SQL query parsing, and then the query is handled
off to the storage engine. A storage engine could be either a default
one supp ......
MysqlÊý¾Ý¿âÊÇÒ»¸ö¶àÓû§£¬¶àÏ̵߳ĹØϵÐÍÊý¾Ý¿â£¬ÊÇÒ»¸ö¿Í»§»ú/·þÎñÆ÷½á¹¹µÄÓ¦ÓóÌÐò¡£ËüÊǶԸöÈËÓû§ºÍÉÌÒµÓû§ÊÇÃâ·ÑµÄ.
MysqlÊý¾Ý¿â¾ßÓÐÒÔÏÂÓŵ㣺
1.ͬʱ·ÃÎÊÊý¾Ý¿âµÄÓû§µÄÊýÁ¿²»ÊÜÏÞÖÆ
2.¿ÉÒÔ±£´æ³¬¹ý5ǧÍòÌõµÄ¼Ç¼
3.ÊÇÄ¿Ç°Êг¡ÉÏÏÖÓÐÊý¾Ý¿â²úÆ·ÖÐÔËÐÐËÙ¶È×î¿ìµÄÊý¾Ý¿âϵͳ
4.Óû§È¨ÏÞÉèÖüòµ¥¡¢ÓÐ ......