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
少し変わった論理削除
Search
Yusuke Yagyu
August 31, 2015
Technology
3
16k
少し変わった論理削除
論理削除 Casual Talks #1 (2015/08/31)
Yusuke Yagyu
August 31, 2015
Tweet
Share
More Decks by Yusuke Yagyu
See All by Yusuke Yagyu
ペパボのデザインシステムと、モバイル領域における取り組み
gyugyu
0
980
Dart Sass であれを作った
gyugyu
0
70
Android CI: 2016 edition
gyugyu
3
2.1k
Other Decks in Technology
See All in Technology
SPI原点回帰論:事業課題とFour Keysの結節点を見出す実践的ソフトウェアプロセス改善 / DevOpsDays Tokyo 2024
visional_engineering_and_design
4
1.5k
AWS を使う上で知っておきたいオンプレミス知識/aws-on-premise-essentials
emiki
1
4.2k
4年前、あるじゃん老害エンジニアLT合戦に登壇、米国西海岸コンピュータ歴史博物館体験記の続編
toshi_atsumi
0
190
LLM とプロンプトエンジニアリング/チューターをビルドする / LLM and Prompt Engineering and Building Tutors
ks91
PRO
0
220
スタートアップの技術顧問を3年間続けて発生した事と気付き
biwakonbu
0
150
Databricks における 『MLOps』
databricksjapan
2
130
長期間TiDBを使ってきた話 @ 私たちはなぜNewSQLを使うのかTiDB選定5社が語る選定理由と活用LT / Experiences with TiDB Over Time
chibiegg
2
670
疲弊しない!AWSセキュリティ統制の考え方 #devio_osakaday1
masahirokawahara
6
5.9k
社内勉強会運営のコツ
senoo
6
1.1k
コンパウンドスタートアップのためのスケーラブルでセキュアなInfrastructure as Codeパイプラインを考える / Scalable and Secure Infrastructure as Code Pipeline for a Compound Startup
yuyatakeyama
3
2k
Autonomous Database Cloud 技術詳細 / adb-s_technical_detail_jp
oracle4engineer
PRO
14
35k
Apple Vision Pro trial session
akkeylab
0
120
Featured
See All Featured
Making the Leap to Tech Lead
cromwellryan
123
8.5k
Happy Clients
brianwarren
91
6.4k
Being A Developer After 40
akosma
56
580k
10 Git Anti Patterns You Should be Aware of
lemiorhan
646
57k
Mobile First: as difficult as doing things right
swwweet
216
8.6k
Facilitating Awesome Meetings
lara
41
5.6k
Design and Strategy: How to Deal with People Who Don’t "Get" Design
morganepeng
115
18k
Dealing with People You Can't Stand - Big Design 2015
cassininazir
356
22k
Building Effective Engineering Teams - LeadDev
addyosmani
27
1.8k
Designing for Performance
lara
602
67k
Designing on Purpose - Digital PM Summit 2013
jponch
110
6.4k
[RailsConf 2023] Rails as a piece of cake
palkan
22
3.9k
Transcript
গ͠มΘͬͨཧআ ϗεςΟϯάαʔϏεʹ͓͚Δཧআͷྫ
var_dump($me); object(Engineer)#1 (3) { [“name”:private]=> string(12) “Yusuke Yagyu” [“nickname”:private]=> string(6)
“gyugyu” [“position”:private]=> string(35) “Senior engineer at GMO Pepabo, Inc.” [“leisure”:private]=> string(6) “Noder” }
Noder
None
None
None
None
ΑΖ͘͠ ͓ئ͍͠·͢
Sorry, I apologize for ͍ΘΏΔཧআΒ͍͠ཧআͷ͋·Γग़·ͤΜ ER ਤ SQL ग़͖ͯ·ͤΜ ͓͜ͱΘΓ
෮शɿཧআ ཧআͱ σʔλͷӬଓԽʹ͓͍ͯ ֘σʔλͷফڈͱผʹ σʔλ͕֎෦͔ΒࢀরෆೳͱͳΔঢ়ଶΛఆٛ͠ ͦͷঢ়ଶͱσʔλΛ্ॻ͖͢Δ͜ͱ Ͱ͋Δͱఆٛ͢Δɻ ཧআͱ
෮शɿཧআ del_flg ΧϥϜ༩ deleted_at ΧϥϜ༩ ঢ়ଶཧςʔϒϧ࡞ ཤྺςʔϒϧ࡞ ཧআɾ࣮
෮शɿཧআ ઃܭऀͷ RDBMS ʹର͢Δཧղෆ ઃܭऀͷσʔλϕʔειϑτΣΞʹର͢Δཧղෆ ઃܭऀͷυϝΠϯʹର͢Δཧղෆ Ϗδωεཁ݅ͱͯͦͦ͠ఆٛ͞Εͯ͠·͍ͬͯΔ ʢےͷѱ͍ʣཧআ͕࣮͞ΕΔഎܠ
Engineer in Wonderland
Engineer in Wonderland ཧআͱ σʔλͷӬଓԽʹ͓͍ͯ ֘σʔλͷফڈͱผʹ σʔλ͕֎෦͔ΒࢀরෆೳͱͳΔঢ়ଶΛఆٛ͠ ͦͷঢ়ଶͱσʔλΛ্ॻ͖͢Δ͜ͱ Ͱ͋Δͱఆٛ͢Δɻ ཧআͱ
Engineer in Wonderland ཧআͱ σʔλͷӬଓԽʹ͓͍ͯ ʢུʣ Ͱ͋Δͱఆٛ͢Δɻ ͨͩ͠ɺͦͷσʔλӬଓԽػߏ RDBMS ͱݶΒͳ͍ɻ
ཧআɾ࠶ఆٛ
Engineer in Wonderland ཧআͱ σʔλͷӬଓԽʹ͓͍ͯ ʢུʣ Ͱ͋Δͱఆٛ͢Δɻ ͨͩ͠ɺͦͷσʔλӬଓԽػߏ RDBMS ͱݶΒͳ͍ɻ
͞Βʹ୯ҰϨίʔυͷӬଓԽ͕ෳͷӬଓԽػߏʹ·͕ͨΔɻ ཧআɾ࠶ఆٛ
Hosting Service
Hosting Service Σϒαʔό ϝʔϧαʔό σʔλϕʔεαʔό DNS ֤छCMS ԿΛαʔϏε͢Δ͔
Hosting Service ྫͱͯ͠ΣϒαʔόͰ unix Ϣʔβ ϑΝΠϧγεςϜ ϑΝΠϧߦ RDBMS Ͳ͏ӬଓԽ͢Δ͔
Hosting Service usermod -L chmod 000 mv rmʢγϯϘϦοΫϦϯΫʣ ίϝϯτΞτ REVOKE
ඇ RDBMS ڥʹ͓͚Δཧআʢྫʣ
Hosting Service ϗεςΟϯάαʔϏεʹ͓͚Δཧআɺ RDBMS తཧআͱ࣮ͯ͠Ͱ͖ͳ͍ɻ ͳ͓͔ͭɺRDBMS Ͱͷཧআ͕ ඇ RDBMS ڥͰͷཧআͱͳΔύλʔϯ͕͋Δɻ
݁Ռɺཧআͷҙຯ͕ͿΕΔɻ
Hosting Service ϓϩμΫτΦʔφʔ ʮ͜ͷϢʔβɺআͰ͖ͳ͍͚ͲͳΜͰʁʯ ։ൃऀ ʮ͜ΕϢʔβͷཧআͳͷͰ͕͢ɺ ɹϑΝΠϧγεςϜ্ͷআͱ ɹϑΝΠϧͷίϝϯτΞτΛ࣮ࢪ͍ͯͯ͠ɺ ɹͦͷࡍʹఆ͞ΕΔߦ͕ͳ͔ͬͨͨΊɺ ɹϢʔβͷআϑϥά্͕͕͍ͬͯͳ͍ͷͰ͢ʯ
ྫʢ͋͘·Ͱ͜ΕྫͰ͢ʣ
Hosting Service ϓϩμΫτΦʔφʔ ʮϢʔβ͕আ͞ΕΔલʹ৽͘͠ঢ়ଶΛՃ͍ͨ͠Μ͚ͩͲʯ ։ൃऀ ʮ͜ͷػೳͱ͜ͷػೳΛཧআͯ͠ɺ ɹআϑϥάͱ͍ͯͬͯ͠ΔΧϥϜʹ৽͍͠ΛՃ͠·͠ΐ͏ʯ ྫʢ͋͘·Ͱ͜ΕྫͰ͢ʣ
!! Danger !!
ཧআͱఔΑ͍ڑײͰੜ͖Δ ։ൃऀԟʑʹͯ͠෦࣮ΛޠΓ͗͢Δ ඇ։ൃऀআ͕ཧ͔ཧ͔͠ͳ͍ ʮཧআʯͱ͍͏ݴ༿͕ຊʹత֬ͳදݱ͔ʁ ྫɿୀձϢʔβʁɹແޮϢʔβʁɹআͪϢʔβʁ ຊʹඞཁͳ࣌Ҏ֎ʮཧআʯͱ͍͏୯ޠΛආ͚Δ ྫɿ։ൃऀͱ͍ͯͯ֓͠೦Λཧআͱ͔͠දݱͰ͖ͳ͍߹ ཧআͱݴΘͳ͍
ཧআͱఔΑ͍ڑײͰੜ͖Δ ཧআʴϩΪϯάʹͰ͖ͳ͍͔ ཧআͰͳ͘ঢ়ଶཧͰͳ͍͔ ػೳՃɺཁ݅ͷมߋʹରͯ͠։͔Ε͍ͯΔ͔ Ϗδωεཁ݅ͱͯ͠ඞਢͷ࣌ؤுΔ ཧআΛආ͚Δ
ཧআͱఔΑ͍ڑײͰੜ͖Δ ཧআͱݴ͍ग़͢ͷσʔλͷ࣋ͪํʹनΘΕ͗͢Ͱʁ ຊདྷྗ͖͢υϝΠϯʹྗͰ͖͍ͯͳ͍ͷͰʁ ͦͦ
DDD ʰυϝΠϯۦಈઃܭʱEric Evans ʰ࣮ફυϝΠϯۦಈઃܭʱVaughn Vernon
·ͱΊ ཧআ RDBMS ʹݶΒͣɺ༷ʑͳܗͷཧআ͕ଘࡏ͠͏Δ ӬଓԽػߏ͕ෳଘࡏ͢Δͱɺཧআෳࡶ͞ͷݪҼʹͳΔ ෳࡶͳཧআΛੜͰѻ͏ΑΓɺత֬ͳঢ়ଶදݱΛఆٛ͢Δ ӬଓԽػߏ͕ෳଘࡏ͢Δ͜ͱͰɺ݁ՌతʹυϝΠϯͷ·ͳ͟͠ ͕ᔻཆ͞ΕΔ ཧআͱ͍͏୯ޠ RDBMS
͚ͩͷͷͰͳ͍