石锤淡啤酒

Linux运维工程师笔试题第二十一套

Posted on 2021-04-14 Edited on 2025-11-08 In 大牛之路 Views: Valine:
Symbols count in article: 1.5k Reading time ≈ 5 mins.

这次偏数据开发

Posted on 2021-03-25 Edited on 2025-11-08 In 工作与技术 Views: Valine:
Symbols count in article: 361 Reading time ≈ 1 mins.

我预计扎克施耐德的《正义联盟2》就是打黑化超人和狄萨德但是被达克赛德击败，《正义联盟3》就是穿越回去重新打达克赛德

Posted on 2021-03-17 Edited on 2025-11-08 In 工作与技术 Views: Valine:
Symbols count in article: 396 Reading time ≈ 1 mins.

如果有多个定时任务且有依赖顺序，推荐使用Azkaban

Posted on 2021-03-02 Edited on 2025-11-08 In 工作与技术 Views: Valine:
Symbols count in article: 346 Reading time ≈ 1 mins.

重案组之虎，魔鬼筋肉人。达叔，一路走好...

Posted on 2021-02-22 Edited on 2025-11-08 In 坠乱花天 Views: Valine:
Symbols count in article: 1.4k Reading time ≈ 5 mins.

翻墙这个技术纯属是自己人祸害自己人搞出来的

Posted on 2021-02-20 Edited on 2025-11-08 In 工作与技术 Views: Valine:
Symbols count in article: 1.1k Reading time ≈ 4 mins.

MySQL提供straight_join语法，强制设定连接顺序

Posted on 2021-02-19 Edited on 2025-11-08 In 工作与技术 Views: Valine:
Symbols count in article: 947 Reading time ≈ 3 mins.

MySQL 5.7是EXPLAIN EXTENDED+SHOW WARNINGS，而MySQL 8就是EXPLAIN +SHOW WARNINGS了

Posted on 2021-01-28 Edited on 2025-11-08 In 工作与技术 Views: Valine:
Symbols count in article: 1.1k Reading time ≈ 4 mins.

联合索引对于范围查询是不匹配的，即>、<、between、like，这里不包括IN

Posted on 2021-01-08 Edited on 2025-11-08 In 工作与技术 Views: Valine:
Symbols count in article: 472 Reading time ≈ 2 mins.

MySQL里的where 1=1，主要就是为了后续条件的面向失败处理，如果是where 1=0结果不会返回任何数据，只有表结构，节省内存，达到快速建表目的

Posted on 2020-12-22 Edited on 2025-11-08 In 坠乱花天 Views: Valine:
Symbols count in article: 274 Reading time ≈ 1 mins.

当你手机有点秘密不想让人知道...