熟悉SQL设计软件的一般步骤、SQL的基本语法语句、辅助课堂教学为目的，提高同学的编程开发软件的能力，进一步巩固数据库课程-familiar with the general design software steps, the basic syntax of SQL statements, support for teaching purposes, improve students programming software, database programs to further consolidate
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001398s ]
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:0.066046s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001136s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001273s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001125s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003366s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000781s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003608s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015867s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001244s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 152822 [ RunTime:0.015801s ]
