Video: Findall rov qab Sequelize dab tsi?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
2 Teb. Sequelize yog rov qab los ib qho array ntawm cov khoom piv txwv hauv cov neeg siv. Ib qho piv txwv khoom muaj ntau txoj hauv kev yooj yim txuas rau nws uas tso cai rau koj ua rau nws. Yog tias koj xav kom tau txais cov ntaub ntawv xwb nrog koj daim teb ua cov yuam sij, siv get({plain: true}).
Hauv qhov no, Sequelize qauv yog dab tsi?
A sequelize qauv sawv cev ib lub rooj nyob rau hauv lub database. Piv txwv ntawm chav kawm no sawv cev ib kab database. Yog tias koj tsis paub nrog cov ntaub ntawv sib txuas xws li SQL, xav tias excel. Ib qho kev sib raug zoo database yog ib lub rooj ntawm kab thiab kab. Sequalize pab tswj lub rooj, muab synchronization, koom haum, validation.
Ib sab saum toj, dab tsi Sequelize rhuav tshem rov qab? ua kom puas . Ua kom puas tag nrho cov xwm txheej uas phim cov lus nug. Nws rov qab los kev cog lus rau tus lej ntawm kab uas tau muab tshem tawm.
Hauv qhov no, paranoid Sequelize yog dab tsi?
Sequelize txhawb lub tswvyim ntawm paranoid rooj. A paranoid lub rooj yog ib qho uas, thaum hais kom rho tawm cov ntaub ntawv, nws yuav tsis rho tawm tiag tiag. Xwb, ib kem tshwj xeeb hu ua deletedAt yuav muaj nws cov nqi teev rau lub sij hawm ntawm qhov kev thov tshem tawm.
Kev siv Sequelize yog dab tsi?
Sequelize yog lub tsev qiv ntawv muaj zog hauv Javascript uas ua rau nws yooj yim los tswj SQL database. Sequelize tuaj yeem txheej dhau cov txheej txheem sib txawv, tab sis ntawm no peb yuav siv PostgreSQL. Hauv nws qhov tseem ceeb, Sequelize yog Object-Relational Mapper – lub ntsiab lus tias nws maps ib yam khoom syntax rau peb database schemas. Sequelize siv Node.
Pom zoo:
Kuv yuav rov qab tau thiab rov qab tau cov ntaub ntawv Postgres li cas?
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Dab tsi yog hom rov qab ntawm txoj kev uas tsis rov qab muaj nqi?
Rov qab Tus Nqi los ntawm Txoj Kev Yog tias ib txoj kev tsis rov qab muaj nuj nqis, nws yuav tsum tau tshaj tawm kom rov qab tsis muaj nuj nqis. Txawm li cas los xij, txoj kev pop() hauv chav kawm Stack rov qab cov ntaub ntawv siv hom: ib qho khoom. Cov txheej txheem siv tus neeg teb xov tooj rov qab los rov qab tus nqi. Ib txoj hauv kev uas tsis tau tshaj tawm tsis muaj dab tsi yuav tsum muaj cov lus rov qab
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