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:0.001667s ]
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:0.105099s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001447s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001137s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001039s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003148s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000737s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003769s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.025092s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001719s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 187758 [ RunTime:0.024537s ]
