对于重要的数据库数据，如果不希望修改或删除，那么可以锁定数据库或数据库中的表，本实例完成对数据库表的锁定。-For critical database data, if you do not want to modify or delete, you can lock the database or database table to complete this instance lock database tables.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001231s ]
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:0.094767s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001182s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001961s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001224s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003858s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001084s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003273s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014962s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001387s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 252153 [ RunTime:0.001530s ]
