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dbtとBigQueryで始めるData Vault入門
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Kazuki Taniguchi
May 10, 2022
Programming
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2.2k
dbtとBigQueryで始めるData Vault入門
dbt Tokyo Meeup #3の発表内容です
発表のアーカイブはこちらから
https://youtu.be/SYsiRFR2LGw
#dbt_tokyo
Kazuki Taniguchi
May 10, 2022
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Transcript
dbtͱBigQueryͰ࢝ΊΔ Data Vaultೖ dbt Tokyo Meetup #3 Kazuki Taniguchi (@Kazk1018)
Introduction • Kazuki Taniguchi (@Kazk1018) • SWE(Data) @ 10X, Inc
• Careers • Data Scientist @ CyberAgent, Inc • Co-founder @ the Babels, Inc • CEO @ ExpData, LLC https:/kazk1018.github.io/
ຊ͓͢Δ͜ͱ • Stailerͷհ • Stailerʹ͓͚ΔσʔλϞσϦϯάͷ՝ • Data Vaultʹ͍ͭͯ • dbtͱBigQueryΛ༻͍ͨData
Vaultʹ͍ͭͯ
Stailer খചࣄۀऀͷσδλϧԽΛ࣮ݱ͢Δͯ͢ͷγεςϜΛϓϥοτϑΥʔ Ϝͱͯ͠ఏڙ ͓٬༷͚ খചࣄۀऀ͚ ૹۀऀ͚
Our Issues খചࣄۀऀຖʹҟͳΔෳͷγεςϜͷσʔλΛ࿈ܞ͢ΔͨΊʹσʔλ ιʔεͷଟ༷ੑ͕ߴ͍ ใ ൢଅ ૹใ ࡏݿใ ձһใ 4UBJMFS%BUB-BLF
Our Issues খചࣄۀऀຖʹҟͳΔෳͷγεςϜͷσʔλΛ࿈ܞ͢ΔͨΊʹσʔλ ιʔεͷଟ༷ੑ͕ߴ͍ ใ ใ 4UBJMFS%BUB-BLF খചࣄۀऀA খചࣄۀऀB ҟͳΔϑΥʔϚοτ
Data Vault • σʔλΣΞϋεʹ͓͚ΔσʔλϞσϦϯάख๏ͷҰͭͰ2000 ʹDaniel (Dan) LinstedtʹΑͬͯఏҊ͞Εͨ • 2014ʹఏҊऀͷϒϩάͰData Vault
2.0͕հ͞Εͨ (ຊൃදͰData Vault 2.0ʹج͍ͮͯઆ໌͠·͢)
Business Objects ӦۀੳऀͷϏδωεϢʔβʔ͕ར༻͢ΔΦϒδΣΫτΛϢχʔΫ ʹಛఆͰ͖ΔϏδωεΩʔΛઃܭ͢Δඞཁ͕͋Δ 0CKFDU #VTJOFTT,FZT 6TFS VTFS*%PS&NBJM 1SPEVDU ݩ
൪߸ 4IPQ ళฮ໊PSاۀ໊ ళฮ໊ Ex)
Data Vaultʹ͓͍ͯγεςϜ͕ੜ͢ΔओͳΧϥϜ System Fields 'JFMET $PMVNOOBNF %FTDSJQUJPO )BTILFZ \PCKFDU^@IBTILFZ %8)Ͱར༻͢ΔΩʔ
ϏδωεΩʔ͔ΒϋογϡΛ༻͍ͯܭࢉ͢Δ -PBE%BUF5JNF4UBNQ MPBE@EUT %8)͕ॳΊͯϏδωεΦϒδΣΫτΛ ֬ೝͨ࣌͠ 3FDPSE4PVSDF SFDPSE@TPVSDF ֨ೲ͞Εͨσʔλͷσʔλιʔε໊
Example: e-Commerce )VC6TFS )VC4IPQ )VC1SPEVDU -JOL0SEFS 4BU0SEFS 4BU6TFS 4BU1SPEVDU )VC
-JOL 4BUFMMJUF
Hub ֤ϏδωεΦϒδΣΫτͷϏδωεΩʔΛอ࣋͢Δςʔϒϧ )VC6TFS VTFS@IBTILFZ VTFS@JE MPBE@EUT SFDPSE@TPVSDF )VC4IPQ TIPQ@IBTILFZ OBNF
MPBE@EUT SFDPSE@TPVSDF )VC1SPEVDU QSPEVDU@IBTILFZ QSPEVDU@OVNCFS MPBE@EUT SFDPSE@TPVSDF
ෳͷϏδωεΦϒδΣΫτͷؔΛอ࣋͢Δςʔϒϧ -JOL0SEFS VTFS@IBTILFZ QSPEVDU@IBTILFZ TIPQ@LFZ MPBE@EUT SFDPSE@TPVSDF Link
Satellite HubLinkΛઆ໌͢ΔͨΊͷɺ͓ΑͼͦͷཤྺΛอ࣋͢Δςʔϒϧ 4BU6TFS VTFS@IBTILFZ fi STU@OBNF MBTU@OBNF MPBE@EUT SFDPSE@TPVSDF 4BU1SPEVDU
QSPEVDU@IBTILFZ OBNF QSJDF MPBE@EUT SFDPSE@TPVSDF 4BU0SEFS PSEFS@IBTILFZ BNPVOU TIJQQJOH@EBUF PSEFS@EBUF MPBE@EUT SFDPSE@TPVSDF
Satellite ͷཤྺΛอ࣋͢Δ(SCD type2)ׂ͕͋ΔͷͰඞཁʹԠͯ࣍͡ͷ System FieldsΛར༻͢Δ 'JFMET $PMVNOOBNF %FTDSJQUJPO )BTI%J f
)BTIEJ f มߋ͞Ε͔ͨͲ͏͔Λൺֱ͢ΔͨΊͷϋογϡ -PBE&OE%BUF5JNF4UBNQ MPBE@FOE@EUT 1,ຖʹ৽͍͕͠ೖ͖ͬͯͨͱ͖ͷ࣌ ಉ͡1,Ͱ࠷৽ͷߦʹ/6--͕ೖ͍ͬͯΔ
Example: e-Commerce )VC6TFS )VC4IPQ )VC1SPEVDU -JOL0SEFS 4BU0SEFS 4BU6TFS 4BU1SPEVDU )VC
-JOL 4BUFMMJUF
Data Vault Pros • ༷ʑͳσʔλιʔε͕૿͍͑ͯ͘߹Ͱ࠷খݶͷมߋͰ࣮͢Δ͜ ͱ͕ՄೳͰ͋Δ • σʔλؒͷ͕ؔมߋ͞Εͯ༰қʹมߋ͕ՄೳͰ͋Δ • DWHʹ͓͍ͯσʔλιʔεͷ͕ՄೳͰ͋Δ
Data Vault Pros )VC6TFS 4BU6TFS )VC -JOL 4BUFMMJUF 4BU$3. ҟͳΔσʔλιʔεΛՃ͢Δ߹SatelliteΛՃ͢Δ͚ͩͰྑ͍
Data Vault Cons • ຊޠͷใ͕গͳ͍ͷͰӳޠΛಡΊΔඞཁ͕͋Δ • ଞͷσʔλϞσϦϯάʹൺͯൣғ͕͍͜ͱ͋Δ͕ɺߏஙͷͨΊ ʹඞཁͱ͢Δ͕ࣝଟ͍ (ຊൃදͰհͰ͖͍ͯΔ༰جຊతͳ෦ ͚ͩͰ͢)
Data Vault @ 10X dbtͱBigQueryΛ༻͍ͯData VaultΛݕূ͍ͯ͠Δ BigQuery dbt BigQuery
• dbtvault • (ৄࡉޙͷൃදΛ͝ௌߨ͍ͩ͘͞) • ࠓճͷݕূͰௐࠪ·ͰͰ࣮ࡍʹར༻͍ͯ͠·ͤΜ Data Vault using dbt
with BigQuery
Data Vault using dbt with BigQuery • dbtͰͷϑϧεΫϥον • dbtvault͕͋ΔΑ͏ʹςϯϓϨʔτͰSQLΛੜͰ͖Δdbt૬ੑ
͕ඇৗʹྑ͍ • MaterializationͷIncrementalΛ༻͍࣮ͯ͢Δ͜ͱ͕Ͱ͖Δ • (Incrementalʹ͍ͭͯޙͷൃදΛ͝ௌߨ͍ͩ͘͞)
Data Vault using dbt with BigQuery • dbtvaultͰϑϧεΫϥονͰجຊͳ࣮͘Ͱ͖Δ • ARRAYSTRUCTͷѻ͍ʹҙ͢Δ
• Data VaultͰଟ༻͞ΕΔhashdistinct͕ѻ͑ͳ͍ • (dbt snapshotͱ༷ͷͱͯ͠ಉ͡)
(ߋʹৄ͍͠ઃܭৄࡉʹ͍ͭͯԼهͷຊΛࢀߟʹ͍ͯͩ͘͠͞) More Information about Data Vault
Summary • 10Xʹ͓͚ΔDWHߏஙͷ՝ • Data Vaultͷجຊతͳ֓೦ • dbtͱBigQueryΛ༻͍ͨData Vault
References • Books • Building a Scalable Data Warehouse with
Data Vault 2.0 • Articles • A short intro to #datavault 2.0