类的处理，异常处理，超载的编码，REM AddNewStudent.sql
REM Chapter 9, Oracle9i PL/SQL Programming by Scott Urman-Class processing, exception handling, overloading the encoding, REM AddNewStudent.sql REM Chapter 9, Oracle9i PL/SQL Programming by Scott Urman
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001755s ]
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:0.088878s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001059s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001156s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000957s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003250s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000840s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003704s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014856s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001064s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 244286 [ RunTime:0.016518s ]
