SQL Server入门经典-宝阳悦读网

　　　　

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SQL Server入门经典

作者：吴德胜

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内容简介:

数据库系统（DataBase System,DBS）是采用数据库技术的计算机系统，是由数据库（数据）、数据库管理系统（软件）、数据库管理员（人员）、硬件平台（硬件）和软件平台（软件）5部分构成的运行实体。其中，数据库管理员（DataBase Administrator,DBA）是对数据库进行规划、设计、维护和监视等的专业管理人员，在数据库系统中起着非常重要的作用。

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基本文件流程错误 SQL 调试

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CONNECT:[ UseTime:0.000612s ] mysql:host=39.109.117.202;port=3306;dbname=mq59_com;charset=utf8
SHOW FULL COLUMNS FROM `ls_goods_category` [ RunTime:0.000590s ]
SELECT `id`,`name`,`pid`,`image`,`level`,`is_show`,`is_recommend` FROM `ls_goods_category` WHERE `is_show` = 1 AND `del` = 0 AND `level` = 1 ORDER BY `id` ASC,`sort` DESC [ RunTime:0.000339s ]
SELECT `id`,`name`,`pid`,`image`,`level`,`is_show`,`is_recommend` FROM `ls_goods_category` WHERE `is_show` = 1 AND `del` = 0 AND `level` = 2 ORDER BY `id` ASC,`sort` DESC [ RunTime:0.000363s ]
SELECT `id`,`name`,`pid`,`image`,`level`,`is_show`,`is_recommend` FROM `ls_goods_category` WHERE `is_show` = 1 AND `del` = 0 AND `level` = 3 ORDER BY `sort` DESC [ RunTime:0.000224s ]
SHOW FULL COLUMNS FROM `ls_nav` [ RunTime:0.000467s ]
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SHOW FULL COLUMNS FROM `ls_friendly_link` [ RunTime:0.000419s ]
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SHOW FULL COLUMNS FROM `ls_goods` [ RunTime:0.000455s ]
SELECT * FROM `ls_goods` WHERE `id` = 53488 AND `status` = 1 LIMIT 1 [ RunTime:0.000265s ]
UPDATE `ls_goods` SET `click_count` = 185 , `update_time` = 1732690009 WHERE `id` = 53488 [ RunTime:0.000300s ]
SELECT `name`,`first_category_id`,`second_category_id` FROM `ls_goods` WHERE `id` = 53488 LIMIT 1 [ RunTime:0.000335s ]
SELECT `id`,`name` FROM `ls_goods_category` WHERE `id` = 35 LIMIT 1 [ RunTime:0.000197s ]
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SELECT * FROM `ls_friendly_link` WHERE `is_show` = 1 AND `del` = 0 ORDER BY `id` DESC,`sort` DESC [ RunTime:0.000224s ]
SELECT `id`,`name` FROM `ls_goods_category` WHERE `id` = 3 LIMIT 1 [ RunTime:0.000422s ]
SELECT `id`,`name` FROM `ls_goods_category` WHERE `id` = 35 LIMIT 1 [ RunTime:0.000238s ]
SELECT * FROM `ls_goods` WHERE `del` = 0 AND `status` = 1 AND `create_time` <= 1732689949 ORDER BY `create_time` DESC LIMIT 5 [ RunTime:0.196444s ]

0.240759s

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