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grant ȨÏÞ on Êý¾Ý¿â¶ÔÏó to Óû§
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grant select on testdb.* to common_user@'%';
grant insert on testdb.* to common_user@'%';
grant update on testdb.* to common_user@'%';
grant delete on testdb.* to common_user@'%';
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grant select,insert,update,delete on testdb.* to common_user@'%'
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grant ´´½¨¡¢Ð޸ġ¢É¾³ý MySQL Êý¾Ý±í½á¹¹È¨ÏÞ¡£
grant create on testdb.* to developer@'192.168.0.%';
grant alter on testdb.* to developer@'192.168.0.%';
grant drop on testdb.* to developer@'192.168.0.%';
grant ²Ù×÷ MySQL Íâ¼üȨÏÞ¡£
grant references on testdb.* to developer@'192.168.0.%';
grant ²Ù×÷ MySQL ÁÙʱ±íȨÏÞ¡£
grant create temporary tables on testdb.* to
grant ²Ù×÷ MySQL Ë÷ÒýȨÏÞ¡£
grant index on testdb.* to
grant ²Ù×÷ MySQL ÊÓͼ¡¢²é¿´ÊÓͼԴ´úÂë ȨÏÞ¡£
grant create view on testdb.* to developer@'192.168.0.%';
grant show view on testdb.* to developer@'192.168.0.%';
grant ²Ù×÷ MySQL ´æ´¢¹ý³Ì¡¢º¯Êý ȨÏÞ¡£
grant create routine on testdb.* to developer@'192.168.0.%';
grant alter routine on testdb.* to developer@'192.168.0.%';
grant execute on testdb.* to developer@'192.168.0.%';
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grant all privileges on testdb to
ÆäÖУ¬¹Ø¼ü×Ö “privileges” ¿ÉÒÔÊ¡ÂÔ¡£
grant execute on procedure testdb.pr_add to 'dba'@'localhost';
grant execute on function testdb.fn_add to 'dba'@'localhost';
grant all on *.* to dba@'localhost'
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grant select on *.* to dba@localhost; -- dba ¿ÉÒÔ²éѯ MySQL ÖÐËùÓÐÊý¾Ý¿âÖÐµÄ±í¡£
grant all on *.* to dba@localhost; -- dba ¿ÉÒÔ¹ÜÀí MySQL ÖеÄËùÓÐÊ


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long_query_time = 2 (³¬¹ý2ÃëµÄSQLÓï·¨¼Ç¼ÆðÀ´,Éè¶ÌÒ»µãÀ´¼Ç¼³ý´íÒ²ÊÇÒ»ÖÖ·½·¨.)
 
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Linux Ô´Âë°²×°Mysql5.5

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2¡¢tar zxvf mysql-5.5.2-m2.tar.gz ½âѹµ½/usr/local/src/mysql-5.5.2-m2ÏÂ
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mysql ʱ¼ä¶Î²éѯ

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$sql="SELECT video_id,count(id)as n from `rec_down` WHERE UNIX_TIMESTAMP(NOW())-UNIX_TIMESTAMP(add_time)<=86400 group by video_id order by n desc ";
$sql="select a.id,a.title,b.n from video_info a,(".$sql.")b where a.id=b.video_id order by n desc limit 20";
NÌìÄڼǼ ......

mysql ʹÓÃrandËæ»ú²éѯ¼Ç¼ЧÂʲâÊÔ

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