可进行多种分布函数的计算，包括求解均值，方差等。可在进行统计学程序编辑时使用。-Can be calculated a variety of distribution functions, including the solution of the mean, variance and so on. Carrying out statistical procedures can be used to edit.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.008073s ]
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:0.183240s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.008117s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001273s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.005259s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002956s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.007013s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.018306s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001035s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 209547 [ RunTime:0.126791s ]
