介绍了MFC的ODBC和DAO类，并向读者演示了编写数据库应用程序的方法。-MFC introduced the category of ODBC and DAO, and readers demonstrated the preparation of database application procedures.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002059s ]
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:0.085142s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002730s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001965s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002330s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003622s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002081s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003412s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015273s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002563s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 187758 [ RunTime:0.001649s ]
