一个图书销售管理的例子，使用access数据库，其中有编辑、更新、查找等功能，适合初学者下载学习。-An example of book sales management, using access databases, including editing, update, search and other functions, suitable for beginners to learn to download.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001028s ]
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:0.120713s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001429s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002374s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001528s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.005156s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001085s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003894s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.017557s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001352s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 200003 [ RunTime:0.016392s ]
