Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
UUIDは衝突の夢を見るか
Search
Dorian
April 26, 2017
Programming
1
1.2k
UUIDは衝突の夢を見るか
Dorian
April 26, 2017
Tweet
Share
More Decks by Dorian
See All by Dorian
VMとAWS ECSがメインのインフラにKubernetesを導入した効能
doridoridoriand
1
3.5k
オープンSNSフレームワークについて
doridoridoriand
0
1.1k
Other Decks in Programming
See All in Programming
ふつうの技術スタックでアート作品を作ってみる
akira888
0
140
設計やレビューに悩んでいるPHPerに贈る、クリーンなオブジェクト設計の指針たち
panda_program
6
1.6k
Java on Azure で LangGraph!
kohei3110
0
170
プロダクト志向ってなんなんだろうね
righttouch
PRO
0
160
Azure AI Foundryではじめてのマルチエージェントワークフロー
seosoft
0
140
5つのアンチパターンから学ぶLT設計
narihara
1
120
WebViewの現在地 - SwiftUI時代のWebKit - / The Current State Of WebView
marcy731
0
100
アンドパッドの Go 勉強会「 gopher 会」とその内容の紹介
andpad
0
270
Webの外へ飛び出せ NativePHPが切り拓くPHPの未来
takuyakatsusa
2
430
AIプログラマーDevinは PHPerの夢を見るか?
shinyasaita
1
170
Julia という言語について (FP in Julia « SIDE: F ») for 関数型まつり2025
antimon2
3
980
C++20 射影変換
faithandbrave
0
540
Featured
See All Featured
Large-scale JavaScript Application Architecture
addyosmani
512
110k
Visualizing Your Data: Incorporating Mongo into Loggly Infrastructure
mongodb
46
9.6k
Cheating the UX When There Is Nothing More to Optimize - PixelPioneers
stephaniewalter
281
13k
The Illustrated Children's Guide to Kubernetes
chrisshort
48
50k
How to train your dragon (web standard)
notwaldorf
94
6.1k
Helping Users Find Their Own Way: Creating Modern Search Experiences
danielanewman
29
2.7k
The Success of Rails: Ensuring Growth for the Next 100 Years
eileencodes
45
7.5k
The Straight Up "How To Draw Better" Workshop
denniskardys
234
140k
Gamification - CAS2011
davidbonilla
81
5.3k
10 Git Anti Patterns You Should be Aware of
lemiorhan
PRO
657
60k
Building a Scalable Design System with Sketch
lauravandoore
462
33k
Bootstrapping a Software Product
garrettdimon
PRO
307
110k
Transcript
66*% িಥͷເΛݟΔ͔ 4LJMM8FEOFTEBZ
͓·͑ͩΕ w ͍ͩ͠ w --ͱ͔Α͘ॻ͘Α w ࠷͍ۙΜ;ΒΛ͔͍ͬͯ͡·͢ w ͓ञΛࢁҿΊΔਓΛਅʹ୳͍ͯ͠·͢
66*% w ϢχʔΫͳจࣈྻΛಘΔ࣌ྑ͍ͬͯ͘Δͱࢥ͍ ·͢ ҎԼྫ GEEDBCBEDE w ͲΜͳʹੜͯ͠িಥ͠ͳ͍ͱ͔ɻɻ w
ͰຊͳΜͰ͔͢Ͷ
ͦͦ66*%ͱ w ࢄγεςϜ্Ͱͱ౷ແ͠ʹ࡞Ͱ͖Δࣝผࢠͱ ͯ͠ઃܭ͞Εͨ w όʔδϣϯେผͯͭ͠ଘࡏ w ༷3'$ͱͯ͠ެ։͞Ε͍ͯΔ IUUQTUPPMTJFUGPSHQEGSGDQEG
w ࠷ॳͷࣈͷ෦͕όʔδϣϯΛද͍ͯ͠Δ w ࠷ޙͷจࣈͷ෦όϦΞϯτͱݺΕΔ มछͷछྨΛද͍ͯ͠Δ w όʔδϣϯ/*$ͷ."$ΞυϨεΛ༻ͨ͠Γ w όʔδϣϯόʔδϣϯͷҰ෦Λ104*9ͷ6*%(*%Ͱஔ͖ ͑ͨͷ
w όʔδϣϯͱ.%4)"Ͱੜͨ͠ϋογϡΛ༻͍ͯ ͍Δͷͱͳ͍ͬͯΔ GEEDBCBEDE
GEEDBCBEDE w զʑ͕ීஈ༻͍͍ͯΔ66*%όʔδϣϯ w ͦΕʹՃ͑ͯόϦΞϯτͱݺΕΔจࣈྻ͕ՃΘΔ " # ͷ͍ͣΕ͔ʹͳΔ
w શͯཚʹΑΔੜ
GEEDBCBEDE w ্ه66*%ਐͰܻCJU ਐ w ͔͜͜Βόʔδϣϯ ͱόϦΞϯτ
ΛҾ ͘ͱɺCJUͷࣗ༝͕͋Δ w ?º?௨Γ͘͢͝ଟ͍
ຊʹিಥ͠ͳ͍ͷʁ w ҙ֎ͱඦສͱ͔ग़ྗ͢ Δͱ͙͢িಥ͢ΔͷͰʁ w ͍͘Β EFWVSBOEPNͱ͔छʹ ͬͯͯͶ͑ɻɻ
·͋ͬͯΈͬ w 66*%Λͻͨ͢Βੜͯ͠%#ʹ*/4&35 w ͕࣌ؒڐ͢ݶΓͣͬͱ
require 'securerandom' require 'mysql2' client = Mysql2::Client.new(:host => 'localhost', :username
=> 'root', :password => 'password', :database => 'uuid' ) while true do begin uuid = SecureRandom.uuid client.query("insert into uuid.ruby (`uuid`) values ('#{uuid}')") puts uuid rescue => e p e end end
ॏෳνΣοΫ w ੜ͞Εͨ66*%શ݅Λ͖࣋ͬͯͯɺ ཁૉΧϯτ w VOJRϝιουΛར༻ͯ͠ॏෳഉআ ཁૉΧϯτ w ཁૉʹҧ͍͕͋Εॏෳ͍ͯ͠Δͣ ͘͢͝ಥ؏ͳॏෳνΣοΫ
ॏෳνΣοΫ ͘͢͝ಥ؏ͳॏෳνΣοΫ puts 'িಥͨ͠Ͱ' if data.count != data.uniq.count
ॏෳνΣοΫ దʹ#PUʹͭͿ͔ͤͯ֬ೝͱ͔ͯ͠·ͨ͠
ൃੜ w ༻ҙ͍ͯͨ͠%#ͷ༰ྔΛ͑Δ w ૉʹσΟεΫ͕େ͖͍%#Λ࡞Ҡߦ
ൃੜ w ԯ͑ͨ͋ͨΓ͔ΒॏෳνΣοΫͰ͖ͳ͘ͳΔ ͓͍ 1$ͷϝϞϦʹΒͳ͍ w ஞ࣍%#͔ΒಡΈऔͬͯಉҰͷ66*%͕͋Δ͔%#ʹ ͍߹Θͤ͢Δํࣜʹมߋ
ൃੜ w ,74ʹ͢ΕΑ͔ͬͨײ w ฒྻॲཧग़དྷΔΑ͏ʹ͚ͨ͠ΕͲΓ͍ ༻ҙͨ͠%#αʔόʔ͕ශऑͩͬͨ
Ͱɺিಥͨ͠ͷʁ w ੜͨ͠66*%ԯສ w ԯϨίʔυௐͨײͩ͡ͱিಥ͠·ͤΜͰͨ͠
Ͱɺিಥͨ͠ͷʁ w ଟ͠ͳ͍ͱࢥ͏ w 66*%ͩͱিಥ͠ͳ͍ͷ͔͚ͩΕͲɺ୯७ͳIFYͱ͔ Ͳ͏ͳΜͩΖ͏
͓͠·͍