2004《Java程序设计》
上机练习题
（共包括四部分、16个练习、共96个练习题，请使用“视图”中的“文档结构图”查看）
-2004 "Java Programming" on the plane exercises (including four of a total of 16 exercises, A total of 96 exercises, please use the "View" of the "Document Structure map" View)
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001149s ]
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:0.085875s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001067s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001843s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001176s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003549s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000924s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003233s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014458s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001176s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 48414 [ RunTime:0.001218s ]
