ArcGIS 地理信息系统空间分析实验教程，第四章，空间数据的转换与处理-ArcGIS Geographic Information System spatial analysis Experimental Course, the fourth chapter, the spatial data conversion and processing
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001098s ]
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:0.075163s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001039s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000969s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003141s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000906s ]
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SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001172s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 184151 [ RunTime:0.021505s ]
