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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
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Linux Ô´Âë°²×°Mysql5.5

¹«Ë¾µÄ·þÎñÆ÷ÊÇCentOS 5.4(Final)°æµÄ£¬½ñÌìÔÚÉÏÃæ°²×°ÁËÒ»»Ømysql5.5£¬¼Ç¼ÈçÏ£º
1¡¢´Óhttp://blog.s135.com/soft/linux/nginx_php/mysql/mysql-5.5.2-m2.tar.gz ÏÂÔØÔ´Âë°²×°°üµ½/usr/local/src
2¡¢tar zxvf mysql-5.5.2-m2.tar.gz ½âѹµ½/usr/local/src/mysql-5.5.2-m2ÏÂ
    cd mysql-5.5.2-m2/
&n ......

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 )
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check_expression
½«±»¼ì²éÊÇ·ñΪ NULLµÄ±í´ïʽ¡£check_expression ¿ÉÒÔÊÇÈκÎÀàÐ͵ġ£
re ......

¸øÄãµÄMySqlÊÜÔ¶³Ì·ÃÎÊȨÏÞ

¸ømysql¿ªÒ»¸ö¿ÉÒÔÔ¶³Ì·ÃÎʵÄÓû§ÃüÁîÈçÏÂ:
GRANT ALL PRIVILEGES ON *.* TO 'myuser'@'%' IDENTIFIED BY 'mypassword' WITH GRANT OPTION;
"*.*" ±íʾÊý¾Ý¿âÖÐËùÓеıí,Ò²¿ÉÒÔ»»³ÉÖ¸¶¨µÄ±íÈçtest.*
"myuser" ±íʾµÄÊÇ·ÃÎʵÄÓû§Ãû;
"%" ±íʾËùÓеÄÖ÷»ú¼´ÈκεÄÖ÷»ú¶¼¿ÉÒÔͨ¹ýÕâ¸öÓû§Ãû·ÃÎÊÎÒµÄÊý¾Ý¿â,Ò²¿ÉÒԸóÉÌØ¶¨µ ......

MySQL³£ÓÃÃüÁî

1. ¸øroot¼ÓÃÜÂ룺/usr/bin/mysqladmin -u root password 123456
2. µ¼³ö£ºmysqldump -u root -p dbname > file.sql
3. µ¼È룺mysql -u root -p dbname < backup-file.sql
4. ÊÚȨ£ºgrant all on *.* to root@"%" identified by "ÃÜÂë";
5. ÊÕ»ØÈ¨ÏÞ£ºrevoke all privileges on *.* from root@"%";
6. µÇ¼£ºmys ......

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, ......
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