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

Mysql µ¼Èëµ¼³öµÄÎÊÌâ

¹ØÓÚMySqlµÄµ¼Èëµ¼³öÎÊÌâ
    ÔÚÖÕ¶ËÖУ¬½øÈëmysqlµÄ·¾¶ÏµÄbinÖУ¬ÔÚÕâ¸ö·¾¶Ï¿ÉÒÔÖ´ÐÐmysql£¬mysqldumpµÈÃüÁî¡£
    »òÕßÌí¼Ó»·¾³±äÁ¿ ÉèÖû·¾³±äÁ¿path "...(mysqlµÄ°²×°Â·¾¶ÏµÄbinĿ¼)"£¬ÕâÑù¾Í²»±Øÿ´Î¶¼½øÈëÉÏÃæËù˵µÄ·¾¶Ï²Ù×÷¡£
µ¼³öÒ»¸ö¿â£º
    mysqldump -u µÇ¼Ãû -p ¿âÃû > Òª½«´Ë¿âµ¼³öµ½µÄÎļþ
    eg: mysqldump -u root -p database1 > data1.sql
µ¼³öÒ»¸ö±í£º
    mysqldump -u µÇ¼Ãû -p ¿âÃû ±íÃû > Òª½«´Ë¿âµ¼³öµ½µÄÎļþ
    eg: mysqldump -u root -p database1 table1 > data2.sql
    ÁíÍ⣬mysqldumpÖеÄÒ»¸ö²ÎÊý -h ºóÃæ¸úÒ»¸öipµØÖ·£¬±íʾÊDzÙ×÷´Ëip»úÆ÷ÉϵÄmysqlÊý¾Ý¿â
    eg: mysqldump -h localhost -u root -p database1 table2 > data3.sql
µ¼Èëµ½Êý¾Ý¿âÖУº
    mysql -h ip -u µÇ¼Ãû -p ¿âÃû < Òª½«´Ë¿âµ¼³öµ½µÄÎļþ
    eg: mysql -h localhost -u root -database1 < data2.sql
    »òÕß
    ½øÈëmysqlÏÂ("mysql>")ʹÓÃsourceÃüÁîµ¼Èë
    eg: mysql> source D:\db\data3.sql


Ïà¹ØÎĵµ£º

SQL Server¡¢OracleºÍMySQLÖвé³öֵΪNULLµÄÌæ»»

SOURCE: CLICK HERE
±¾ÎĽ²ÊöSQL Server¡¢Oracle¡¢MySQL²é³öֵΪNULLµÄÌæ»»¡£
ÔÚSQL Server Oracle MySQLµ±Êý¾Ý¿âÖвé³öijֵΪNULLÔõô°ì?
1¡¢MSSQL: ISNULL()
Óï·¨
ISNULL ( check_expression , replacement_value )
²ÎÊý
check_expression
½«±»¼ì²éÊÇ·ñΪ NULLµÄ±í´ïʽ¡£check_expression ¿ÉÒÔÊÇÈκÎÀàÐ͵ġ£
re ......

DedeCMS²¿Êð ÔõÑùÈ¥²¿ÊðApache+Mysql+PHP(LAMP)£¿

 ÉùÃ÷£º²¿ÊðDedeCMS£¬ÔÚÍøÉÏËÑÁ˺ܶà×ÊÁÏ£¬°üÀ¨Õâ¸öÂÛ̳£¬¼¸ºõûÓз¢ÏÖÔÚlinuxϲ¿ÊðµÄÏÖ³É×ÊÁÏ¿ÉÒԲο¼¡£
             Ë죬×Ô¼º°ÑÕû¸ö²¿Êð¹ý³ÌÖÐһЩÖØÒªµÄµã¼Ç¼ÏÂÀ´£¬Ò»ÊÇËã×ö×Ô¼ºµÄÀͶ¯³É¹û£¬Í¬Ê±£¬ÆÚÍû¶ÔÔø¾­ºÍÎÒÒ»ÑùÃÔ㣬²»ÖªÈçºÎ²¿Êð           ......

Now it's MySQL's turn...

Some problems encounted this afternoon, when trying to setup/test mysql capabilities on hypnos and virgil.
1.ERROR 2003 (HY000): Can't connect to MySQL server on 'server-name' (111)
access locally (i.e. from localhost) is fine, when trying remotely got this error. when tried with mysql++ library, ......

mysql´æ´¢¹ý³Ì Àý×Ó Óαêcursor Ñ­»·Ç¶Ì× ÊÂÎï

×òÌìÒªmysqlÖÐд´æ´¢¹ý³Ì·¢ÏÖÍøÉÏÓйØÓÚcursorÑ­»·ÇÒÌ×µÄ×ÊÁϺÜÉÙ,ÏÖ·¢³ö±¾ÈËдµÄÀý×Ó,Ï£ÍûÄܶԴó¼ÒÓаïÖú.
¿´ÕÐ:
DELIMITER $$
USE `ad_db`$$
DROP PROCEDURE IF EXISTS `test`$$
CREATE DEFINER=`root`@`%` PROCEDURE `test`()
BEGIN
     /** CPAЧ¹ûÊý */
DECLARE _tmpId1 INT; 
DECLARE ......

mysql´æ´¢¹ý³Ìtips

ʾÀý£º
create procedure proc_name (in parameter integer)
begin
declare variable varchar(20);
if parameter=1 then
set variable='MySQL';
else
set variable='PHP';
end if;
insert into tb (name) values (variable);
end; 
MySQLÀ©Õ¹Ò²ÊÇÖ§³Ö´æ´¢¹ý³ÌµÄ£¬²»¹ýÖ»Ö§³ÖÎÞ·µ»Ø½á¹ûµÄ´æ´¢¹ý³Ì
¿ÉÒÔÊ¹Ó ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØͼ | ¸ÓICP±¸09004571ºÅ