利用哈希函数对学生姓名进行最优化查找 可选择从键盘输入和文件输入,需输入名字最大长度-hash function to the students find the most optimal choice from the keyboard input and the input document, name must be imported maximum length
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001994s ]
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:0.093561s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002933s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002036s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002277s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003648s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001925s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003310s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014859s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002538s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 300694 [ RunTime:0.001238s ]
