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:0.001839s ]
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:0.168892s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001374s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001955s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001364s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.005159s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.004604s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.006793s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.022172s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001634s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 300694 [ RunTime:0.015150s ]
