硬盘参数释疑 到目前为止，人们常说的硬盘参数还是古老的 CHS (Cylinder/Head/Sector)参数。那么为什么要使用这些参数，它们的意义是什么？它们的取值范围是什么？-drive parameters construction date, known as the hard drive or the old parameters CHS (Cylinder/Head/Sector) parameters. Then why should the use of these parameters, what is the meaning? Their value in the range of what?
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001332s ]
SELECT `a`.`aid`,`a`.`title`,`a`.`create_time`,`m`.`username` FROM `jrk_downrecords` `a` INNER JOIN `jrk_member` `m` ON `a`.`uid`=`m`.`id` WHERE `a`.`status` = 1 GROUP BY `a`.`aid` ORDER BY `a`.`create_time` DESC LIMIT 10 [ RunTime:0.083683s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001016s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001097s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000866s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003048s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000802s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003675s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.023654s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001371s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 261605 [ RunTime:0.014905s ]
