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

mysql Ô´Âë±àÒë°²×°

»·¾³ rhel5.4
×°ºÃgcc ºÍÏàÓ¦µÄ¿â¡£ÎÒÕâ±ßÓöµ½curses¡£DebianϵͳµÄ»°Ðè°²×°apt-get install libncurses5-dev¡£
ÏÂÔØmysqlÔ´Âë°ü£¬ÎÒ×Ô¼ºÔÚmyslq¹Ù·½ÍøÕ¾ÉÏÏÂÁËÒ»¸ö“mysql-5.0.87.tar.gz”
cd /usr/local/src/
½â°ü tar zxvf mysql-5.0.87.tar.gz
cd mysql-5.0.87
./configure --prefix=/usr/local/service/mysql --bindir=/usr/local/service/bin --sbindir=/usr/local/service/sbin --sysconfdir=/usr/local/service/etc --localstatedir=/usr/local/service/mysql/data --with-mysqld-user=mysql --with-charset=utf8 --with-extra-charsets=gbk,gb2312,utf8 --with-collation=utf8_general_ci --without-debug --with-unix-socket-path=/tmp/mysql.sock --with-mysqld-ldflags=-all-static --with-client-ldflags=-all-static --with-big-tables --enable-thread-safe-client --enable-assembler
--prefix=/usr/local/service/mysql                                 Ö¸¶¨mysql°²×°Â·¾¶
--bindir=/usr/local/service/bin                                     Ö¸¶¨mysqlÖ´ÐÐÎļþ°²×°Â·¾¶
--localstatedir=/usr/local/service/mysql/data              Ö¸¶¨mysqlÊý¾ÝÎļþ´æ·Å·¾¶
--with-mysqld-user=mysql                                           Ö¸¶¨mysqlÓû§
--with-charset=utf8                                          &nbs


Ïà¹ØÎĵµ£º

MYSQL£ºCannot convert value '0000

½ñÌì´ÓMYSQLÊý¾Ý¿âץȡʱ£¬·¢ÉúÁËCannot convert value '0000-00-00 00:00:00' from column 10 to TIMESTAMPÒì³£
googleÁËһϣ¬´ó¸ÅÒâ˼ÊÇMySQLÖеÄDatetimeÖµÎÞ·¨ÔÙJAVAÖпɿ¿µÄ±»±íʾ£¬°´ÕÕJDBCºÍSQLµÄ±ê׼ĬÈÏÇé¿öϲúÉúÒì³£¡£
JDBCÔÊÐíÓÃÏÂÁеÄÖµ¶ÔzeroDateTimeBehavior ÊôÐÔÀ´ÉèÖÃÕâЩ´¦Àí·½Ê½£¬
exception (the d ......

mysql date

ÈÕÆÚº¯Êý£º
http://dev.mysql.com/doc/refman/5.1/en/date-and-time-functions.html
http://hi.baidu.com/yase_guoguo/blog/item/171c2d4feea83c01b2de0527.html
SQL ʱ¼ä±È½Ï
select * from useroperation where '2009-10-26 00:00:00' < date;  //dateµÄÀàÐÍÊÇdatetime
select * from useroperation where D ......

mysqlÈÝÒ×±»ºöÂÔµÄÓ÷¨

1.ÔÚ´´½¨±íµÄͬʱ´´½¨Ë÷Òý
  CREATE TABLE material(id INT NOT NULL, name char(40) NOT NULL, resistance INT, INDEX index1(id,name), UNIQUE INDEX index2(name))
  µÚÒ»¸öË÷Òý£¬ÃûΪindex1£¬ÓÉidºÍnameÁ½¸ö×Ö¶Î×é³É¡£µÚ¶þ¸öË÷ÒýÖ»°üº¬name£¬²¢Ö¸Ã÷name×ֶεÄÖµ±ØÐëÊÇΨһµÄ¡£
2.²åÈëÊý¾Ý£¬¿ÉÒÔͨ¹ýÆäËûij ......

MySQLÖÐInnoDBºÍMyISAMµÄ²î±ð

InnoDBºÍMyISAMÊÇÔÚʹÓÃMySQL×î³£ÓõÄÁ½¸ö±íÀàÐÍ£¬¸÷ÓÐÓÅȱµã£¬ÊÓ¾ßÌåÓ¦Óöø¶¨¡£ÏÂÃæÊÇÒÑÖªµÄÁ½ÕßÖ®¼äµÄ²î±ð£¬½ö¹©²Î¿¼¡£
innodb 
      InnoDB ¸ø MySQL ÌṩÁ˾ßÓÐÊÂÎñ(commit)¡¢»Ø¹ö(rollback)ºÍ±ÀÀ£ÐÞ¸´ÄÜÁ¦(crash recovery capabilities)µÄÊÂÎñ°²È«(transaction-safe (ACID complian ......

mysql ÈÕÆÚĬÈÏϵͳʱ¼ä mysql ĬÈÏÖµ²»Ö§³Öº¯Êý

ÓÉÓÚMySQLĿǰ×ֶεÄĬÈÏÖµ²»Ö§³Öº¯Êý£¬ËùÒÔÒÔ
create_time datetime default now()
µÄÐÎʽÉèÖÃĬÈÏÖµÊDz»¿ÉÄܵġ£
´úÌæµÄ·½°¸ÊÇʹÓÃTIMESTAMPÀàÐÍ´úÌæDATETIMEÀàÐÍ¡£
TIMESTAMPÁÐÀàÐÍ×Ô¶¯µØÓõ±Ç°µÄÈÕÆÚºÍʱ¼ä±ê¼ÇINSERT»òUPDATEµÄ²Ù×÷¡£
Èç¹ûÓжà¸öTIMESTAMPÁУ¬Ö»ÓеÚÒ»¸ö×Ô¶¯¸üС£
×Ô¶¯¸üеÚÒ»¸öTIMESTAMPÁÐÔÚÏ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ