一个具体的jdbc编程实现，其中包含一个具有广泛应用价值的数据库连接池类文件。-jdbc a specific program, which includes a broad application of the database connection pool types of documents.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001974s ]
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:0.087384s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002453s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002008s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002127s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003689s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002137s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003300s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014589s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002457s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 147435 [ RunTime:0.001178s ]
