Cov txheej txheem:
Video: Kuv yuav tsim kev sib raug zoo ntawm tus kheej hauv Salesforce li cas?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Tsim Kev Sib Raug Zoo rau Tus Kheej nrog Txoj Haujlwm Txoj Haujlwm
- Los ntawm Teeb, nyem Object Manager.
- Nyem qhov chaw.
- Nyem Fields & Kev sib raug zoo , ces New.
- Xaiv Nrhiav Kev sib raug zoo raws li Data Type.
- Nyem Next.
- Nyob rau hauv Related To picklist, xaiv Txoj Haujlwm.
- Nyem Next.
- Hloov daim ntawv lo rau lwm txoj hauj lwm.
Ib yam li ntawd, kev sib raug zoo ntawm tus kheej hauv Salesforce yog dab tsi?
Tus kheej - kev sib raug zoo : Thaum ib yam khoom muaj ib tug lookup nrog nws tus kheej, nws yog a tus kheej - kev sib raug zoo . A kev sib raug zoo ntawm tus kheej tsim ib daim duab tsob ntoo ntawm cov khoom. Piv txwv li, tus account muaj ib tug saib ntawm nws tus kheej, hu ua Parent Account.
Ib tug kuj yuav nug, Kuv yuav ua li cas thiaj tsim tau cov ntaub ntawv teev tseg hauv Salesforce? Ntaus hauv " khoom "hauv lub thawv tshawb nrhiav thiab nyem rau ntawm " khoom "link sub" Tsim ”. Nyem rau ntawm "New Custom Object ” khawm. Lub npe khoom daim ntawv lo. Xaiv qhov koj xav sau npe tshiab li cas cov ntaub ntawv ntawm Salesforce.
Tom qab ntawd, ib tus tuaj yeem nug, Kuv yuav tsim kev sib raug zoo hierarchical hauv Salesforce li cas?
Hauv Classic: Teeb | Kev teeb tsa App | Tsim | Yam khoom | Tshiab Custom Object.
Tsim ib tug hierarchy (niam txiv/me nyuam kev sib raug zoo) nyob rau hauv tib yam khoom
- Lub npe nws "Sub", i.e. SubOpportunity.
- Xaiv Auto Number rau hom ntaub ntawv.
- Tsis txhob xaiv ib qho ntawm "Optional Features" lossis ib qho ntawm "Kev Tsim Khoom" xaiv.
- Txuag.
Kev sib raug zoo hierarchical yog dab tsi?
Hierarchical kev sib raug zoo yog ua raws li qib lossis theem ntawm kev tswj hwm thiab kev tswj hwm, qhov twg lub sij hawm tus thawj tswj hwm sawv cev rau ib chav lossis tag nrho, thiab cov ntsiab lus hauv qab hais txog nws cov tswv cuab lossis cov khoom.
Pom zoo:
Kev sib cav sib ceg sib txawv li cas ntawm kev sib cav tsis zoo?
Txhua qhov kev sib cav tsis zoo siv txoj cai invalid inference. Yog tias qhov kev sib cav tsis zoo koj paub tias nws tsis siv. Kev siv tau txhais tau tias tsis muaj kev txhais lus qhov twg qhov chaw muaj tseeb thiab qhov kev txiav txim siab tuaj yeem tsis tseeb ib txhij. Yog tias qhov kev sib cav ua txhaum koj tuaj yeem tsis quav ntsej nws thiab sim nkag siab lub ntsiab lus tseem
Vim li cas kev sib raug zoo algebra siv nyob rau hauv kev sib raug zoo database tswj?
RELATIONAL ALGEBRA yog ib hom lus nug uas siv dav heev. Nws sau cov xwm txheej ntawm kev sib raug zoo raws li kev tawm tswv yim thiab muab qhov tshwm sim ntawm kev sib raug zoo raws li cov zis. Nws siv ntau yam haujlwm los ua qhov haujlwm no. Relational algebra operations yog ua recursively ntawm kev sib raug zoo
Dab tsi yog qhov txawv ntawm kev sib raug zoo unary kev sib raug zoo binary thiab kev sib raug zoo ternary?
Kev sib raug zoo tsis sib xws yog thaum ob tus neeg koom hauv kev sib raug zoo yog tib lub koom haum. Piv txwv li: Cov ncauj lus yuav yog qhov yuav tsum tau ua ua ntej rau lwm yam kev kawm. Kev sib raug zoo ternary yog thaum peb lub koom haum koom nrog kev sib raug zoo
Dab tsi yog qhov txawv ntawm kev sib raug zoo thiab tsis muaj kev sib raug zoo databases?
Qhov sib txawv loj ntawm lawv yog li cas lawv tuav cov ntaub ntawv. Relational databases are structured.Non-relational databases are document-oriented. Qhov no hu ua cov ntaub ntawv hom cia tso cai ntau 'qeb' ntawm cov ntaub ntawv khaws cia hauv ib qho kev tsim lossis Cov Ntaub Ntawv
Dab tsi yog qee qhov tsis zoo ntawm lub sijhawm stamping txoj hauv kev rau kev tswj hwm kev sib raug zoo?
Qhov tsis zoo ntawm lub sij hawm stamping mus kom ze yog tias txhua tus nqi khaws cia hauv cov ntaub ntawv yuav tsum muaj ob lub sij hawm thwj ntxiv: ib qho rau lub sijhawm kawg ntawm daim teb tau nyeem thiab ib qho rau qhov hloov tshiab kawg. Lub sij hawm stamping yog li ua rau kom nco xav tau thiab cov ntaub ntawv ua haujlwm nyiaj siv ua haujlwm