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『机房工程』弱电必备技能培训PPT

  • 2026-10-25 16:00:52
『机房工程』弱电必备技能培训PPT

机房工程建设涉及到很多专业，比如电气、暖通、装饰等等，机房工程是一个综合性非常强的系统，入门比较慢，最好的方法就是先学习理论知识，然后参与一个机房建设项目，从头到尾，就会有一个新的认识。

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PPT | 开关柜受潮放电情况及整治方法

基本 文件 流程 错误 SQL 调试
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  1. CONNECT:[ UseTime:0.000432s ] mysql:host=172.18.0.4;port=3306;dbname=h_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000758s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000444s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000404s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000715s ]
  6. SELECT * FROM `set` [ RunTime:0.000365s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000822s ]
  8. SELECT * FROM `article` WHERE `id` = 512810 LIMIT 1 [ RunTime:0.000452s ]
  9. UPDATE `article` SET `lasttime` = 1793879222 WHERE `id` = 512810 [ RunTime:0.001370s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000390s ]
  11. SELECT * FROM `article` WHERE `id` < 512810 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000509s ]
  12. SELECT * FROM `article` WHERE `id` > 512810 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000462s ]
  13. SELECT * FROM `article` WHERE `id` < 512810 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000869s ]
  14. SELECT * FROM `article` WHERE `id` < 512810 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000741s ]
  15. SELECT * FROM `article` WHERE `id` < 512810 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000702s ]
0.090231s