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数据库使用系列微课 ——掌阅精选电子书库使用方法

  • 2026-10-09 18:43:06
数据库使用系列微课 ——掌阅精选电子书库使用方法

数据库使用系列微课

亲爱的读者朋友们，欢迎来到我们的数据库使用系列微课！在科研和学习的道路上，掌握数据库的使用技巧至关重要。本系列课程将带你逐步掌握数据库资源的检索、筛选、管理的实用方法，干货满满！快来一起解锁资源使用的高效秘籍，助力你的图书馆畅游之旅！

掌阅精选电子书库从海量书籍中，基于豆瓣高分、当当/亚马逊畅销榜、大奖书系、掌阅独家首发等维度，精选出20万册电子书、50万集有声书。库内的电子数每月更新，年更新量2000-3000钟，充分满足读者多层次、多领域、多场景的阅读需求，以优质内容、智能工具和丰富活动，为读者提供独一无二的阅读新体验。

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基本 文件 流程 错误 SQL 调试
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  1. CONNECT:[ UseTime:0.000767s ] mysql:host=172.18.0.4;port=3306;dbname=g_15386;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001118s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000644s ]
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  6. SELECT * FROM `set` [ RunTime:0.000319s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000791s ]
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  9. UPDATE `article` SET `lasttime` = 1791677902 WHERE `id` = 475571 [ RunTime:0.001310s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000388s ]
  11. SELECT * FROM `article` WHERE `id` < 475571 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000506s ]
  12. SELECT * FROM `article` WHERE `id` > 475571 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000347s ]
  13. SELECT * FROM `article` WHERE `id` < 475571 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000791s ]
  14. SELECT * FROM `article` WHERE `id` < 475571 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000873s ]
  15. SELECT * FROM `article` WHERE `id` < 475571 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000658s ]
0.052258s