速度msyql order by

《REBEL Relation Extraction By End-to-end Language generation》阅读笔记

论文来源 代码地址 相关视频(YouTube) 相关概念: 1.What is natural language understanding (NLU)? Natural language understanding (NLU) is a branch of artificial intellige ......

Unevictable LRU Infrastructure (翻译 by chatgpt)

原文:https://www.kernel.org/doc/html/latest/mm/unevictable-lru.html Introduction This document describes the Linux memory manager's "Unevictable LRU" in ......
Infrastructure Unevictable chatgpt LRU by

路由器速度慢、信号弱 中国电信科普:关掉Wi-Fi双频合一

今天中国电信官微科普道:速度慢、信号弱,Wi-Fi老断开?可能是路由器的“Wi-Fi双频合一”没有关,并建议大家关掉。 中国电信科普道,路由器有2.4GHz和5GHz两个频段,前者网速慢,但穿墙能力强,后者恰好相反。 “双合一”就是将2.4GHz与5GHz的Wi-Fi信号合并为一个网络名称 (SSI ......
双频 路由 路由器 科普 合一

老电脑组raid 0心得记录及速度测试

华硕m5a97 2.0 evo 是amd 970芯片组,大概是2011年的产物,两块新买的同品牌500g带缓存固态硬盘组raid 0,在bios里操作后,组成陈列名称自定义为111,diskgenius软件显示为一块硬盘,名称为AMD 2+0 stripe RAID01.10,组raid0在我的理解 ......
速度 心得 电脑 raid

Physical Memory (翻译 by chatgpt)

原文: https://www.kernel.org/doc/html/latest/mm/physical_memory.html Linux is available for a wide range of architectures so there is a need for an arch ......
Physical chatgpt Memory by

What is NUMA? (翻译 by chatgpt)

原文:https://www.kernel.org/doc/html/latest/mm/numa.html This question can be answered from a couple of perspectives: the hardware view and the Linux so ......
chatgpt What NUMA is by

内存管理相关概念 (翻译 by chatgpt)

原文:https://www.kernel.org/doc/html/latest/admin-guide/mm/concepts.html The memory management in Linux is a complex system that evolved over the years ......
内存 概念 chatgpt by

Workqueue (翻译 by chatgpt)

原文:https://www.kernel.org/doc/html/latest/core-api/workqueue.html Introduction There are many cases where an asynchronous process execution context is ......
Workqueue chatgpt by

乘风破浪,遇见生成式人工智能(Generative AI)洪流之初学者入门课程,十二章系列By微软云技术布道师团队

课程资源 https://github.com/microsoft/generative-ai-for-beginners 课程学习环境设置 Fork课程仓库到自己的账号 https://github.com/microsoft/generative-ai-for-beginners/fork 点击 ......

[LeetCode] 1160. Find Words That Can Be Formed by Characters

You are given an array of strings words and a string chars. A string is good if it can be formed by characters from chars (each character can only be ......
Characters LeetCode Formed Words 1160

Spring Boot 3.2.0 试用CRaC,启动速度提升3到10倍

CRaC(Coordinated Restore at Checkpoint)。 CRaC 是 OpenJDK 项目,能够把运行中的 JVM,将其状态(包括您的应用程序)存储到磁盘中。然后,在另一个时间点,您可以从保存的检查点将 JVM 恢复到内存中。通过这种方式,可以启动一个应用程序,预热它,并创 ......
速度 Spring Boot CRaC

Linux Magic System Request Key Hacks (翻译 by chatgpt)

原文:https://www.kernel.org/doc/html/latest/admin-guide/sysrq.html What is the magic SysRq key? 什么是魔术SysRq键? It is a 'magical' key combo you can hit whi ......
Request chatgpt System Linux Hacks

Transparent Hugepage Support (翻译 by chatgpt)

原文:https://www.kernel.org/doc/html/latest/admin-guide/mm/transhuge.html Objective 目标 Performance critical computing applications dealing with large me ......
Transparent Hugepage Support chatgpt by

哈啰一面:如何优化大表的查询速度?

哈啰出行作为阿里系共享单车的头部企业,在江湖中的知名度还是有的,而今天我们就来看一道哈啰 Java 一面中的经典面试题:当数据表中数据量过大时,应该如何优化查询速度? 哈啰出行的面试题目如下: 其他面试题相对来说比较简单,大部人题目都可以在我的网站上(www.javacn.site)找到答案,这里就 ......
一面 速度

android开发aar包或者jar包出现类重复问题Caused by: java.lang.RuntimeException: Duplicate class found in modules xxx.aar and xxx.aar终极解决方法

如果是仓库依赖的方式直接使用exclude语句移除相同的依赖库即可,如下: implementation("org.java-websocket:Java-WebSocket:1.5.2") { exclude group: 'org.slf4j', module: 'slf4j-api' //ex ......
aar RuntimeException Duplicate xxx 终极

HugeTLB Pages (翻译by chatgpt)

原文:https://www.kernel.org/doc/html/latest/admin-guide/mm/hugetlbpage.html 内核中内存管理文档汇总:Memory Management Overview The intent of this file is to give a ......
HugeTLB chatgpt Pages

前端优化之路:构建、打包速度提升

【前言】 《闻香识女人》中有句经典台词,“有些人一分钟过尽一生”,多少人在等待中浪费了生命的美好。同样,如果一个项目构建、热更新、打包速度过慢,中途需大把时间去等待,那么不免让人抓狂。 【效果展示】 优化前,构建速度 整整126秒,两分多钟过去后,项目才启动成功 优化后,构建速度 21秒运行完毕,仅 ......
前端 速度

LINQ: group n by 和 group n by into g的区别

见stackflow上的答案: https://stackoverflow.com/questions/57406327/what-is-the-difference-between-group-n-by-vs-group-n-by-into-g-in-linq ......
group LINQ by into

常用【描述性统计指标】含义(by python)

统计学有时候会被误解,好像必须有大量的样本数据,才能使统计结果有意义。这会让我们觉得统计学离我们的日常生活很遥远。 其实,如果数据的准确度高的话,少量的样本数据同样能反映出真实的情况。比如,很多国家选举时不断做的民意调查,一般做到有效样本1600多份就够了,不管你是几千万人的小国家,还是数亿人的大国 ......
统计指标 描述性 含义 指标 常用

SQL HAVING 子句详解:在 GROUP BY 中更灵活的条件筛选

SQL HAVING子句 HAVING子句被添加到SQL中,因为WHERE关键字不能与聚合函数一起使用。 HAVING语法 SELECT column_name(s) FROM table_name WHERE condition GROUP BY column_name(s) HAVING con ......
子句 条件 HAVING GROUP SQL

记录一次MySQL多表查询,order by不走索引的情况.

首先是表结构,部分字段脱敏已删除 CREATE TABLE `log_device_heart` ( `id` int unsigned NOT NULL AUTO_INCREMENT, `device_number` varchar(255) CHARACTER SET utf8mb4 COLLA ......
索引 情况 MySQL order

Mysql - Error 1055: Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'user.nickname' which is not functionally dependent on columns in GROUP BY clause

编写SQL时需要如下错误,即出现错误 ERROR 1055,SELECT列表不在GROUP BY语句内且存在不函数依赖GROUP BY语句的非聚合字段'edusassvc.u.nickname',这是和sql_mode=only_full_group_by不兼容的(即不支持)。 分析问题 1)原理层 ......

mysql 报错which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by

Expression #2 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'd.Id' which is not functionally dependent on columns in GROU ......

Make Lexicographically Smallest Array by Swapping Elements

Make Lexicographically Smallest Array by Swapping Elements You are given a 0-indexed array of positive integers nums and a positive integer limit. In ......

Caused by: io.debezium.DebeziumException: java.sql.SQLSyntaxErrorException: Access denied; you need (at least one of) the RELOAD privilege(s) for this operation

1.情景展示 如上图所示: 在使用debezium读取mysql数据操作日志时(io.debezium.connector.mysql.MySqlConnector),报错: Caused by: io.debezium.DebeziumException: java.sql.SQLSyntaxEr ......

[Codeforces] CF1799B Equalize by Divide

序列操作(divide.cpp)—CF1799B—1200 题目描述 给您一个 \(a_1,a_2,\dots a_n\) 这样的正整数数组,您可以对它进行多次(可以是零次)这样的操作: 选择两个索引 \(i,j(1 \leq i,j \leq n,i \neq j)\); 将 \(a_i\) 赋值 ......
Codeforces Equalize Divide 1799B 1799

一个查看 SAP CRM One Order 运行时生成的应用日志(Application Log)的小工具

方法参数定义: 方法源代码: METHOD GET_ORDER_ERROR_MESSAGE_OPT. DATA: ls_log_filter TYPE bal_s_lfil, ls_extnumber TYPE bal_s_extn, ls_object LIKE ls_extnumber, ls_ ......
Application 工具 Order 日志 SAP

Docker启动失败,提示"iptables: No chain/target/match by that name"

一、问题现象 docker容器报错: docker: Error response from daemon: driver failed programming external connectivity on endpoint etlmysql (12ccdbcef942bef6f32dbfc15 ......
quot iptables Docker target chain

MySQL Group by 优化查询

translator Afrikaans Albanian - shqipe Arabic - ‎‫العربية‬‎ Armenian - Հայերէն Azerbaijani - azərbaycanca Basque - euskara Belarusian - беларуская Ben ......
MySQL Group by

ES插入报错 索引只读:blocked by: [FORBIDDEN/12/index read-only / allow delete (api)];]]

ES插入报错: reason : ElasticsearchException[Elasticsearch exception [type=cluster_block_exception, reason=blocked by: [FORBIDDEN/12/index read-only / allo ......
FORBIDDEN read-only 索引 blocked delete