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大数据技术及应用――基于Python语言 严宣辉 课后习题答案解析

  • 2026-08-21 11:02:32
大数据技术及应用――基于Python语言 严宣辉 课后习题答案解析

书籍基本信息

书名：大数据技术及应用――基于Python语言
主编：严宣辉
ISBN：9787121421693
出版社：电子工业出版社

学习经验分享

我是一名正在学习这本教材的大二学生，本课程涵盖了大量数据分析、处理和可视化技术，对于未来想要从事数据分析师、程序员相关方向的学习者来说，掌握好这门课程十分重要。但该课程难度较大，需要投入大量时间与精力进行学习和实践。我在学习过程中遇到了不少困难，Python语法、数据结构、数据分析算法等内容都让我感到吃力，仅靠自学进步较慢，因此在此恳请学长学姐分享实用的学习经验、方法与相关学习资料，帮助我更好地掌握这门课程，感谢大家的热心帮助！

课后习题答案

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  1. CONNECT:[ UseTime:0.000869s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001717s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.015750s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000303s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000575s ]
  6. SELECT * FROM `set` [ RunTime:0.000200s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000570s ]
  8. SELECT * FROM `article` WHERE `id` = 510316 LIMIT 1 [ RunTime:0.000390s ]
  9. UPDATE `article` SET `lasttime` = 1787294161 WHERE `id` = 510316 [ RunTime:0.022465s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.002197s ]
  11. SELECT * FROM `article` WHERE `id` < 510316 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000459s ]
  12. SELECT * FROM `article` WHERE `id` > 510316 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.003447s ]
  13. SELECT * FROM `article` WHERE `id` < 510316 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.002166s ]
  14. SELECT * FROM `article` WHERE `id` < 510316 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000832s ]
  15. SELECT * FROM `article` WHERE `id` < 510316 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.002515s ]
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