习题解答,密码编码学与网络安全:原理与实践(第三版) [信息理论与信息系统]-Exercises to answer, the password encoding learning and Network Security: Principles and Practice (third edition) [information theory and information systems]
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001443s ]
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:0.091404s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001255s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001887s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001440s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003600s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001044s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003271s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014965s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001395s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 171860 [ RunTime:0.001211s ]