Cov txheej txheem:
Video: Entity Framework taug qab kev hloov pauv li cas?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Cov Hloov Taug kev lem kev hloov thaum ntxiv cov ntaub ntawv tshiab rau cov qhov chaw sau, hloov kho lossis tshem tawm uas twb muaj lawm cov koom haum . Tom qab ntawd tag nrho cov kev hloov yog khaws cia los ntawm qib DbContext. Cov no taug kev hloov ploj yog tias lawv tsis tau txais kev cawmdim ua ntej cov khoom DbContext raug rhuav tshem.
Tsis tas li lo lus nug yog, Lub Tsev Haujlwm Lub Tsev Haujlwm Saib Xyuas Kev hloov pauv li cas?
1 Teb. Tshawb nrhiav kev hloov pauv ua haujlwm los ntawm kuaj pom qhov sib txawv ntawm cov cuab yeej cuab tam tam sim no ntawm cov qhov chaw thiab tus thawj khoom muaj nqis uas yog khaws cia rau hauv ib qho snapshot thaum lub qhov chaw tau nug los yog txuas.
Kuj Paub, qhov txiaj ntsig ntawm Entity Framework yog dab tsi? Qhov zoo ntawm Entity Framework Nws txo lub sijhawm txhim kho. Nws txo tus nqi tsim kho. Nws enables developers mus visually tsim qauv thiab daim ntawv qhia ntawm database. Nws muab lub peev xwm ntawm programming ib lub tswv yim qauv.
Tsuas yog li ntawd, Entity Framework ua haujlwm li cas?
Cov Lub Koom Haum Ua Haujlwm enables developers rau ua haujlwm nrog cov ntaub ntawv nyob rau hauv daim ntawv ntawm cov khoom tshwj xeeb thiab cov khoom, xws li cov neeg siv khoom thiab cov neeg siv khoom, tsis tas yuav txhawj txog lawv tus kheej nrog cov ntaub ntawv hauv qab thiab kab ke uas cov ntaub ntawv no khaws cia.
Kuv yuav hloov kho lub koom haum li cas?
Koj yuav tsum tau hloov kho mus rau qhov tshiab Entity Framework 6 runtime
- Right-click rau koj qhov project thiab xaiv Tswj NuGet Pob
- Hauv Online tab xaiv EntityFramework thiab nyem Nruab. Yog tias yav dhau los version ntawm EntityFramework NuGet pob tau teeb tsa qhov no yuav hloov kho nws mus rau EF6.
Pom zoo:
Koj teeb tsa kev hloov pauv hloov pauv li cas?
Configure the publisher for transactional replication Txuas mus rau tus tshaj tawm hauv SQL Server Management Studio, thiab tom qab ntawd nthuav cov server node. Right-click SQL Server Agent thiab xaiv Start. Nias lub Replication folder, right-click the Local Publications folder, thiab xaiv New Publication
Kev hloov pauv hloov pauv ua haujlwm li cas?
Ib qho kev hloov pauv hloov cais cov circuits siv lub tshuab hluav taws xob thaum muaj hluav taws xob hluav taws xob. Qhov no tshem tawm txoj kev pheej hmoo ntawm rov qab pub cov khoom siv hluav taws xob, uas tuaj yeem ua rau raug mob rau cov neeg ua haujlwm siv hluav taws xob thiab khoom puas tsuaj
Dab tsi yog qhov hloov pauv hloov pauv hloov pauv hauv Java?
Default access modifier txhais tau hais tias peb tsis qhia meej txog kev hloov pauv nkag rau hauv chav kawm, teb, txoj kev, thiab lwm yam. Ib qho kev hloov pauv lossis txoj kev tshaj tawm yam tsis muaj kev tswj xyuas kev hloov pauv yog muaj rau lwm chav kawm hauv tib lub pob
Vim li cas cov kev hloov pauv hloov pauv tsis yog serialized?
Transient yog Java lo lus tseem ceeb uas cim cov tswv cuab sib txawv tsis txhob raug serialized thaum nws pheej mus rau kwj ntawm bytes. Thaum cov khoom raug xa mus los ntawm lub network, cov khoom yuav tsum tau 'serialized'. Serialization hloov cov khoom lub xeev mus rau serial bytes
Puas yog ib qho kev hloov pauv hloov tshiab ua rau muaj kev ua haujlwm tau hais tseg ntawm kev hloov tshiab?
Cov qauv tsis ua rau 'cov ntaub ntawv hloov tshiab,' thiab yog li feem ntau tsis tuaj yeem tua tsis tau dab tsi (ua rau, cov cai ua haujlwm, ntws, cov lus tawm, thiab lwm yam). Koj tuaj yeem xaiv kom rov ua haujlwm rov ua haujlwm cov cai thaum qhov hloov tshiab ua rau cov ntaub ntawv hloov pauv, tab sis kuv tsis paub meej tias yuav pab tau koj li cas