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随机抽样简单随机抽样PPT教学课件

  • 2026-11-07 08:43:03
随机抽样简单随机抽样PPT教学课件

有PPT源文件，PPT版本，可下载，可修改，可编辑

优秀，获奖，借鉴，参考，学习，大家共同进步！

d16454

获取源文件，下载源文件，只需要3步哦：

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中考语文诗歌鉴赏专题复习课件【爱国优民】【山水田园】

基本 文件 流程 错误 SQL 调试
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  2. 运行时间 : 0.089007s [ 吞吐率：11.24req/s ] 内存消耗：4,567.13kb 文件加载：140
  3. 缓存信息 : 0 reads,0 writes
  4. 会话信息 : SESSION_ID=c8cc1fd8e5204f87d286e15907700280
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  1. CONNECT:[ UseTime:0.000641s ] mysql:host=172.18.0.4;port=3306;dbname=a_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000786s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000424s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000374s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000562s ]
  6. SELECT * FROM `set` [ RunTime:0.000377s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000623s ]
  8. SELECT * FROM `article` WHERE `id` = 468843 LIMIT 1 [ RunTime:0.000565s ]
  9. UPDATE `article` SET `lasttime` = 1794127439 WHERE `id` = 468843 [ RunTime:0.001347s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000362s ]
  11. SELECT * FROM `article` WHERE `id` < 468843 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000460s ]
  12. SELECT * FROM `article` WHERE `id` > 468843 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000496s ]
  13. SELECT * FROM `article` WHERE `id` < 468843 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.001171s ]
  14. SELECT * FROM `article` WHERE `id` < 468843 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000840s ]
  15. SELECT * FROM `article` WHERE `id` < 468843 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000835s ]
0.099380s