运行环境：Win 2000 Server + SQL Server 2000 + MS vs.net Framework1.
文件说明：Library为图书管理系统项目工程文件
DataBase文件夹下为数据库文件（Library.mdf和Library_log.LDF文件）
Library.sql 为创建数据库及数据表的SQL脚本文件。
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001066s ]
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:0.073040s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001001s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001171s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000896s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003104s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000964s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003977s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014841s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001065s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 540770 [ RunTime:0.013543s ]
