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DID
主键、候选键与外键的关系
外键(ForeignKey)、主键(PrimaryKey)和候选键(Can
did
ateKey)在关系数据库中有着密切的关系:主键(PrimaryKey):在一个表中
宋冠巡
·
2024-02-11 07:37
《计算思维导论》笔记
数据库
数据库
sql
泽平 的ScalersTalk第七轮新概念朗读持续力训练Day 230 20211108
IarrivedinLondonatlast.Therailwaystationwasbig,blackanddark.I
did
notknowthewaytomyhotel,soIaskedaporter.InotonlyspokeEnglishverycarefully
郑泽平
·
2024-02-11 07:03
pip 提示
did
not provide a command
pip提示
did
notprovideacommand此时下面两个命令都是可以的,判断是由于其他程序阻塞了pip的环境变量pip.exe--versionpip3--version首先检查pip在哪wherepipC
nico1988
·
2024-02-11 05:47
Error in scan(file = file, what = what, sep = sep, quote = quote, dec = dec, : line 1
did
not ha
一开始分析数据就开始各种bug~好哒,继续记录导入数据的时候,出现Errorinscan(file=file,what=what,sep=sep,quote=quote,dec=dec,:line1
did
nothave11elements
Rosebud的记录本
·
2024-02-11 00:40
R
经验分享
How
did
2021 benefited the luxury industry?
NotonlytheluxuryindustryisagainstrugglingwiththelatestCOVID-19-relatedconstraints,buttheholidayseason
did
n
Mr_Listen
·
2024-02-10 19:14
GIT clone 时报 fatal: Authentication failed的问题
起因:第一次clone时输入错误账号密码,去Settings中clear各种操作,重新clone还是报错git
did
notexitcleanly(exitcode128)分析:fatal:Authenticationfailed
yceyceyce
·
2024-02-10 14:59
工具
git
【HDMI原理】HDMI之E
DID
信息解读
转载本博客文章,请注明出处【HDMI原理】HDMI之E
DID
信息解读1、E
DID
功能及用途E
DID
全称为ExtendedDisplayIdentificationData,是由VESA协会制定的显示器标准信息格式
EEGiang
·
2024-02-10 09:51
接口技术
计算机外设
嵌入式硬件
音视频
cocos2dx3.17.2横竖屏切换
staticRootViewController*s_rv;UIInterfaceOrientationMaskorientation=UIInterfaceOrientationMaskLandscape;在
did
FinishLaunchingWithOptions
咸鱼而已
·
2024-02-10 07:04
swift - 私有访问权限
如图:屏幕快照2018-09-26下午2.29.47.png代码:privatetypealias
Did
SelectedItemBlock=(_atIndexPath:IndexPath,_modelGroup
AZander
·
2024-02-10 05:18
【回溯算法】 LCR 081. 组合总和
定义一个名为combinationSum的方法,该方法接受两个参数can
did
ates和target,分别表示候选数数组和目标值。
少写代码少看论文多多睡觉
·
2024-02-10 05:39
#
Leetcode
算法
AfterEffects效果中英文对照表
3DChannel3D通道3DChannelExtract:3D通道提取DepthMatte:深度遮罩DepthofField:场深度(景深)EXtractoR:提取器Fog3D:雾3
DID
Matte:
1248699a2c29
·
2024-02-10 05:41
【揭秘家用路由器0day】Qemu & buildroot 安装和测试
Qemu目前通过apt安装的qemu版本是7.2apt-cachepolicyqemu-systemqemu-system:Installed:(none)Can
did
ate:1:7.2+dfsg-5ubuntu2.4Versio
zephyrOOO
·
2024-02-10 05:03
路由器安全
安全
linux
灵魂之花 电影《一树梨花压海棠》
Shecouldfadeandwither-I
did
n'tcare.Iwouldstillgomadwithtendernessatthemeresightofherface.她会年老色衰,但我不在乎。
青青学渣
·
2024-02-10 01:24
hi-c 文献导读-2 TAD
文献:TopologicalDomainsinMammalianGenomesIdentifiedbyAnalysisofChromatinInteractionsPubMe
dID
:22495300GEO
小贝学生信
·
2024-02-10 01:52
音频自动播放浏览器限制问题解决
最近在做后台系统的时候,想为新消息做一个语音提醒,但是在Chrome浏览器下调用audio播放器的play()方法会报这个错:DOMException:play()failedbecausetheuser
did
n'tinteractwiththedocumentfirst
周星星的学习笔记
·
2024-02-09 23:40
紫晶学画033-玫瑰8
6.9Ifigurelifeisagiftan
dId
on’tintendonwaitingit.我觉得生命是一份礼物,我不想浪费它。
紫晶Jane
·
2024-02-09 22:17
【Django快速开发实战】(30~51)使用Django创建一个基础应用:职位管理系统
为已有系统数据库生成管理后台流程说明:为已有数据库生成管理后台创建项目和应用创建新项目django-adminstartprojectempmanager创建新应用django-adminstartappcan
did
ates
i see the future
·
2024-02-09 22:40
django
django
javascript
python
Window系统安装deepspeed库
直接在conda环境中安装deepspeed会报错:pipinstalldeepspeederror:subprocess-exited-with-error×pythonsetup.pyegg_info
did
notrunsuccessfully
不在摆烂
·
2024-02-09 19:21
python库
python
开发语言
windows
深度学习
IOS AVPlayViewController 实现视频播放的控制
1importUIKit2importAVFoundation3importAVKit45classViewController:UIViewController{6overridefuncview
Did
Load
SkTj
·
2024-02-09 16:02
vue 一键复制文本
$axios.get('后台路径',{params:{mdjid:val.mdjid,j
did
:val.j
did
}}).then(rs=>{if(rs){this.
欧小肥OuO
·
2024-02-09 16:01
k8s-kubernetes错误集锦总结-环境搭建篇
写给以后的自己看的,所以文章会比较随意①[root@centos7k8s-auto]#kubectlgetnodesTheconnectiontotheserverlocalhost:8080wasrefused-
did
youspecifytherighthostorport
搞运维的万精油
·
2024-02-09 15:03
k8s
kubernetes
linux
运维
docker
云计算
利用python开发银行储蓄_用Python开发一个银行系统!说不定下一个银行系统就是你开发的!...
1#银行卡:卡号,卡的密码,余额2classCard(object):3def__init__(self,car
dId
,cardPasswd,cardMoney):4self.car
dId
=car
dId
5self.cardPasswd
weixin_39630440
·
2024-02-09 14:45
利用python开发银行储蓄
Maven之Failed to execute goal org.apache.maven.plugins:maven-install-plugin:2.4:install (default-cli)
Failedtoexecutegoalorg.apache.maven.plugins:maven-install-plugin:2.4:install(default-cli)onprojectdemo4:Thepackagingforthisproject
did
notassignafiletothebuil
所遇所思
·
2024-02-09 14:36
Maven
maven
tomcat
plugins:maven-install-plugin:2.4:install (default-cli) on project demo: The packaging for this proje
项目在打包到本地仓库时出现此错误:plugins:maven-install-plugin:2.4:install(default-cli)onprojectdemo:Thepackagingforthisproject
did
notassignafiletothebuildartifact
故丨是
·
2024-02-09 14:36
笔记
maven
maven-install-plugin:2.4:install (default-cli) on project ability-dispatch:
Failedtoexecutegoalorg.apache.maven.plugins:maven-install-plugin:2.4:install(default-cli)onprojectability-dispatch:Thepackagingforthisproject
did
notassignafiletothebuildartifact
不死鸟.亚历山大.狼崽子
·
2024-02-09 14:05
IntelliJ
IDEA
java
前端
开发语言
【0256】揭晓pg内核中MyBacken
dId
的分配机制(后端进程Id,Backen
dId
)(二)
上一篇:【0255】揭晓pg内核中MyBacken
dId
的分配机制(后端进程Id,Backen
dId
)(一)文章目录1.前言2.分配Backen
dId
2.1何时为backendprocess分配Backen
dId
2.1.1
内核之道
·
2024-02-09 13:29
#
▲
初阶篇
#
▲
进阶篇
BackendId
后端进场
Backend
Process
shmInvalBuffer
MyBackendId
jieqian的ScalersTalk第四轮新概念朗读持续力训练Day48 20181124
练习材料Lesson48
Did
youwanttotellmesomething?
jieqian
·
2024-02-09 13:58
第二十七天| 39. 组合总和 、40.组合总和II、131.分割回文串
Leetcode39.组合总和题目链接:39组合总和题干:给你一个无重复元素的整数数组can
did
ates和一个目标整数target,找出can
did
ates中可以使数字和为目标数target的所有不同组合
%dionysus%
·
2024-02-09 11:43
代码随想录算法训练营
算法
leetcode
React DOM Diff算法
首先上一段代码classTimeextendsReact.Component{state={date:newDate()}component
Did
Mount(){setInterval(()=>{this.setState
一名相声界小学生
·
2024-02-09 10:49
React
算法
react.js
javascript
CityMaker 8二次开发之“这是什么鬼?”
1、Doc:voidIProjectTree.SetVisibility(Gui
dID
,byteVisibleMask)设置可见性。Note:byteVisibleMask这是什么?设置可见性?
[email protected]
·
2024-02-09 10:42
citymaker
GIS
principles 语句合集
WhenI
did
n’twanttodosomething,Iwouldfightit,butwhenIwasexcitedaboutsomething,nothingcouldholdmeback.Forme
时间很宝贵
·
2024-02-09 09:33
乘风破浪姐姐们人手一件,陈冠希曾经撩妹必备,到底是啥神仙装备?
上紧下松的搭配,轻轻松松两米八的气场……听到“工装风”三个字,多数人脑补的画面大概除了姐姐们这样的,也许还有BellaHa
did
,以及大嫂这些,分分钟炸街的时髦亚子。
Fabrique
·
2024-02-09 08:16
煤矿机械英语每日一句!领导层换届完成,作为朋友如何表态?-072
04.03.20181.1.Today’ssentence今日学习Wehavenoticedthatyouhaveannouncedthatthecan
did
ateofmanagerwhowontheelection.Asagoodfriendandpartnerofyourcompany
雅卜湾的小妞
·
2024-02-09 08:49
Android-Firebase快速解决合规问题第1篇,汇总篇,无脑复制解决问题
解决问题方法、工具解决方案问题1,App未经用户同意,获取软件安装列表信息问题2App未经用户同意,存在收集流量信息行为(应用启动会发起网络请求)问题3App未经用户同意,存在获取个人信息行为(获取androi
did
Super-Bin
·
2024-02-09 07:54
Flutter
Android
android
flutter
Lunar calendar birthday
AlthoughI
did
n'tseeyouasIhaveexpected,Istillfeelhappy.Becauseofyourwarmth.Iamafraidofyou……
孤独的浅色
·
2024-02-09 05:49
北海的ScalersTalk第六轮新概念朗读持续力训练Day 55 20210224
练习材料L20-2:Pioneerpilots/ˌpaɪəˈnɪə//ˈpaɪləts/Latham,however,
did
notgiveupeasily.He,too,arrived/Latham,/
北海逍遙
·
2024-02-09 01:49
LeetCode 第27天
classSolution{public://老套路,两个数组前一个存储中间结果,后一个存储总结果集vectorvec;vector>res;//回溯voidbacktracking(vector&can
did
ates
星仔007
·
2024-02-08 22:16
leetcode
算法
职场和发展
The next car the boy stopped
did
not take him into the centre of Paris as he hoped it would, but to
Thenextcartheboystopped
did
nottakehimintothecentreofParisashehopeditwould,buttoPerpignanontheFrench-Spanishborder
小黄人软件
·
2024-02-08 21:17
学习
macos 菜单栏 oc_如何启用macOS的深色菜单栏和Dock
macos菜单栏ocYou’veseenitinscreenshots:ablackmenubar,andablackdock.How
did
theydothat?
culintai3473
·
2024-02-08 20:04
python
java
mac
linux
运维
java for itrator,增强的for循环不接受Iterator
Excusemeifthishasbeenaskedbefore.Mysearch
did
notbringupanyothersimilarquestion.ThisissomethingthatsurprisedmeinJava.Apparently
weixin_39622225
·
2024-02-08 20:31
java
for
itrator
Mariana —— A phD of history and an Astrologer
It'sapitythatI
did
n'tunderstandthecorepointofthisarticle.Sojusttalkaboutsomeofmyopinions.Yourpreviousexcellencemaynotsuitthenewrulesyouwillface.Liketheundergraduateevaluationsystemandthegraduatesystemo
诚威_lol_中大努力中
·
2024-02-08 19:39
story
and
feeling
life
代码随想录算法训练营第二十七天| 39. 组合总和、40.组合总和II、131.分割回文串
组合总和题目链接文章讲解classSolution{public:vector>ans;vectorpath;voidbacktracking(intstart,intcount,constvector&can
did
ates
不不不巧
·
2024-02-08 18:47
算法
edx 4G Network Essentials Week 2: Security Procedures 2 - Authentication
Howcanthenetworkverifythataterminalthatattachesgivesitsvali
did
entity,inotherwordsthattheIMSIhasnotbeenmodified
avqfei90342
·
2024-02-08 17:07
2022-09-16-10X-single cell 上游分析流程
step1_从网站上下载.sra文件:#asper下载id=”批量链接“catid|whilerea
did
;do(ascp-v-QT-l400m-P33001-k1-iasper安装路径/etc/asperaweb_id_dsa.openssh
小小_4dbf
·
2024-02-08 17:41
偷喝的1664
本应该还剩4瓶,但怎么看怎么数都只剩3瓶,在我怀疑记忆力是不是又出问题的时候,终于忍不住将矛头指向了
did
i,在我的再三逼问下,他终于憋不住!
酸奶雪糕不要酸奶
·
2024-02-08 17:35
Swift 闭包实现回调
代码实现:overridefuncview
Did
Load(){super.view
Did
Loa
我要变身啦~~
·
2024-02-08 16:08
Swift
回调
swift
ios
函数闭包
早安心语第58天
I
did
n’tcatchthelastword.(我没搞懂你最后说的是什么意思)—Янепонялпоследнееслово.只愿君心似我心,定不负相思意。出自宋代李之仪的《卜算子·我住长江头》。
豆沙冰冰DS
·
2024-02-08 15:40
“中国碳排放交易试点”城市名单
DID
参照《经济问题》中张静(2023)的做法,将选为“碳交易”试点城市的虚拟变量作为核心解释变量,碳排放交易试点城市作为实验组,将碳交易试点获批当年及以后的政策虚拟变量项
DID
赋值为1,获批之前赋值为0一、
samLi0620
·
2024-02-08 14:29
大数据
2019-11-04
IarrivedinLondonatlast.Therailwaystationwasbig,blackanddark.I
did
notknowthewaytomyhotel,soIaskedaporter.InotonlyspokeEnglishverycarefully
喵小园upup
·
2024-02-08 12:28
005集——shp格式数据转换乱码问题——arcgis
shp数据格式与其他数据格式转换过程中会遇到乱码等问题,原因如下:在Shapefile头文件(dBaseHeader)中,一般会包含字符编码信息,这个信息称为L
DID
(LanguageDriverID)
yngsqq
·
2024-02-08 12:22
arcgisGIS
arcgis
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