给出了一个CRM建模实例，用Powerdesion建模工具制作，这个例子挺不错的，是学习CRM的好资料。-Gives an example of CRM modeling, using Powerdesion modeling tool making, this example quite good, is to learn a good CRM information.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001299s ]
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:0.088246s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001285s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002136s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001290s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003808s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001088s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003290s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015272s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001308s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 308123 [ RunTime:0.001648s ]
