数据库访问的一个简单演示，里面包含如何连接数据库，及CRrecordset和CDatabase这两个类的使用-Database access with a simple demonstration, which includes how to connect to the database, and CRrecordset and CDatabase the use of these two classes
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001703s ]
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:0.140160s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001388s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002008s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001310s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003727s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001123s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003323s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014582s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001343s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 172436 [ RunTime:0.001296s ]
