几种常见的伪随机数的产生程序，上载程序是从别处下载的，觉得还比较有用-several common pseudo-random number generated procedures, procedures are available on the download elsewhere, I felt that more useful
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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:0.117848s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000839s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.002812s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001202s ]
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SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001089s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 312181 [ RunTime:0.015527s ]
