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数据清洗到底在洗什么?Excel这6步万能实操

  • 2026-08-11 07:58:50
数据清洗到底在洗什么?Excel这6步万能实操
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  1. CONNECT:[ UseTime:0.001055s ] mysql:host=127.0.0.1;port=3306;dbname=h_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001472s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000678s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.005147s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001387s ]
  6. SELECT * FROM `set` [ RunTime:0.004892s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001495s ]
  8. SELECT * FROM `article` WHERE `id` = 546031 LIMIT 1 [ RunTime:0.002937s ]
  9. UPDATE `article` SET `lasttime` = 1786468835 WHERE `id` = 546031 [ RunTime:0.014155s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000760s ]
  11. SELECT * FROM `article` WHERE `id` < 546031 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001144s ]
  12. SELECT * FROM `article` WHERE `id` > 546031 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.001086s ]
  13. SELECT * FROM `article` WHERE `id` < 546031 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.012453s ]
  14. SELECT * FROM `article` WHERE `id` < 546031 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.013118s ]
  15. SELECT * FROM `article` WHERE `id` < 546031 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.004435s ]
0.242452s