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

mysql 5.1 configure ±àÒë²ÎÊýÏê½â

-static  13%
   --with-client-ldflags=-all-static
  
--with-mysqld-ldflags=-all-static
¾²Ì¬Á´½ÓÌá¸ß13%ÐÔÄÜ
Unix Socket  7.5%
--with-unix-socket path=/usr/local/mysql/tmp/mysql.sock
ʹÓÃunixÌ×½Ó×ÖÁ´½ÓÌá¸ß7.5%ÐÔÄÜ£¬ËùÒÔÔÚwindowsÏÂmysqlÐÔÄܿ϶¨²»ÈçunixÏÂÃæ
--enable-assembler
The --enable-assembler options of configure allows for
compiling in x86 (and sparc) versions of common
string
operations, which should result in more
performance.
»ã±àx86µÄÆÕͨ²Ù×÷·û£¬¿ÉÒÔÌá¸ßÐÔÄÜ
--with-extra-charsets
=complex×Ö·ûÖ§³Ö
--enable-thread-safe-client
#Compile the client with
threads. Ò²¾ÍÊÇÈÿͻ§¶ËÖ§³ÖÏ̵߳ÄÒâ˼
--with-big-tables
There is a limit of 232
(~4.295E+09) rows in a MyISAM
table. If you build MySQL
with the --with-big-tables
option, the
row limitation is increased to (232
)2
(1.844E+19) rows
--with-ssl
--with-embedded-server
   #±àÒë³Éembedded MySQL library (libmysqld.a
),
--enable-local-infile
#ÈÃmysqlÖ§³Ö´Ó±¾µØÎļþ µ¼ÈëÊý¾Ý¿â
load data local infile '/usr/test' into table test fields terminated by ' ';
ERROR 1148 (42000): The used command is
not allowed with this
MySQL version£©
--with-plugins=innobase
´æ´¢ÒýÇæ
Mysql5.1¿ªÊ¼£¬±àÒëÌí¼Óinnodb²å¼þ¾Í´Ó--with-innodb ¸Ä³ÉÁË --with-plugins=innobase
--with-plugins=PLUGIN[[[,PLUGIN..]]]
                                                    Plugins to include in
mysqld. (default
is
: none)
                                                 


Ïà¹ØÎĵµ£º

MYSQL¼ÆËãÁ½ÈÕÆÚ/ʱ¼äÖ®¼äÏà²îµÄÌìÊý,ÃëÊý...·ÖÖÓ

#Á½ÈÕÆÚ/ʱ¼äÖ®¼äÏà²îµÄÌìÊý£º¡¡
To_Days(end_time)-To_Days(start_time)¡¡
  
#Á½ÈÕÆÚ/ʱ¼äÖ®¼äÏà²îµÄÃëÊý£º¡¡
SELECT¡¡UNIX_TIMESTAMP(end_time)-¡¡UNIX_TIMESTAMP(start_time);¡¡
  
#Á½ÈÕÆÚ/ʱ¼äÖ®¼äÏà²îµÄʱ·ÖÊý£º¡¡
  
SELECT¡¡SEC_TO_TIME(UNIX_TIMESTAMP(end_time)-¡¡UNIX_T ......

ʹÓÃÓαêʵÏÖ mysql ´æ´¢¹ý³ÌÖеÄÑ­»·

create   procedure   all_joiner_message(   in   captions   varchar(255),  in contents text,   in objectid int, in types int  ,  out count int)
begin
 declare   userids   int;
 DECLARE _done IN ......

MysqlͨÓòéѯ²Ù×÷Àà(Jsp+servlet+javaBean+Mysql)

ÔÚÌÚ¿ÆÅàѵÁËÓÐ1¸ö°ëÔÂÁË£¬ÖÕÓÚѧÍêJSP+SERVLET+JAVABEAN+MYSQL£¬Ñ§ÁËjavaµÄµÚÒ»Ì×web½â¾ö·½°¸¡£ÀÏʦҪÇóÎÒÃÇ6ÈËÒ»×鿪ʼ×öÒ»¸ö¶©²Íϵͳ¡£Õâ¸öϵͳûÓÐÊ²Ã´ÌØ±ðµÄ£¬¾Í¸úµç×ÓÉ̳ÇÊÇÒ»¸öÑùµÄ¡£ÓÉÓÚÒª¶ÔÊý¾Ý¿â×ö´óÁ¿µÄÔöɾ¸Ä²é£¬ÄǸö´úÂëÓֶ࣬ÎÒÏëÄܲ»Äܽ«Êý¾Ý¿â²Ù×÷µÄÕâÒ»²ã´ò°üÆðÀ´(SqlOperDao)£¬ÈÃÎÒ¶ÔÊý¾Ý¿â²Ù×÷£¬Óü¸Ðд ......

ת MYSQLÖеÄmy.ini»òmy.cnfÅäÖÃ˵Ã÷

mysqld³ÌÐò--Ŀ¼ºÍÎļþ
basedir = path ʹÓøø¶¨Ä¿Â¼×÷Ϊ¸ùĿ¼(°²×°Ä¿Â¼)¡£
character-sets-dir = path ¸ø³ö´æ·Å×Å×Ö·û¼¯µÄĿ¼¡£
datadir = path ´Ó¸ø¶¨Ä¿Â¼¶ÁÈ¡Êý¾Ý¿âÎļþ¡£
pid-file = filename Ϊmysqld³ÌÐòÖ¸¶¨Ò»¸ö´æ·Å½ø³ÌIDµÄÎļþ(½öÊÊÓÃÓÚUNIX/Linuxϵͳ); Init-V½Å±¾ÐèҪʹÓÃÕâ¸öÎļþÀïµÄ½ø³ÌID½áÊømysqld½ø ......

ʹÓÃADOͨ¹ýODBCÁ¬½ÓMYSQL >MFC¹¤³Ì

1.ÅäÖÃÃû×ÖΪmyodbcµÄÊý¾ÝÔ´
2.ÔÚstdafx.hÖмÓÉÏ
#import "c:\program files\common files\system\ado\msado15.dll" no_namespace rename ("EOF", "adoEOF")
3.ÔÚ³ÌÐò³õʼ»¯µÄ·½·¨ÖмÓÉÏ
AfxEnableControlContainer();
// ³õʼ»¯COM,´´½¨ADOÁ¬½ÓµÈ²Ù×÷
AfxOleInit();
4.ÔÚºÏÊʵĵط½¼ÓÉÏ
public:_ConnectionPt ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ