Video: Kev hloov pauv tag nrho hauv SSIS yog dab tsi?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Cov Aggregate kev hloov pauv yog siv los ua tag nrho kev ua haujlwm / kev ua haujlwm ntawm pawg hauv cov ntaub ntawv. Cov tag nrho Cov haujlwm muaj xws li - suav, suav qhov txawv, suav, nruab nrab, yam tsawg kawg nkaus thiab siab kawg. Cov Aggregate kev hloov pauv muaj ib tug input thiab ib los yog ntau tshaj tawm. Nws tsis txhawb qhov tso zis yuam kev.
Tsis tas li ntawd, Lookup transformation hauv SSIS yog dab tsi?
Cov Nrhiav kev hloov pauv hauv SSIS yog ib qho muaj zog thiab siv tau Kev hloov pauv ntawm SSIS los sib piv cov ntaub ntawv qhov chaw thiab qhov chaw. Nws lim tawm cov ntaub ntawv sib tw thiab tsis sib xws hauv cov chaw uas tau teev tseg. Cia peb tsim lub hauv paus ntsiab lus thiab ntxig cov ntaub ntawv rau hauv nws nrog cov lus nug hauv qab no.
Qhov thib ob, dab tsi yog muab los ntawm kab hauv SSIS? Cov Derived Kem transformation tsim tshiab kem muaj nuj nqis los ntawm kev siv cov lus qhia rau kev hloov pauv tswv yim kab . Ib qho kev qhia tuaj yeem muaj qhov sib xyaw ua ke ntawm kev sib txawv, kev ua haujlwm, tus neeg teb xov tooj, thiab kab los ntawm transformation input. Concatenate cov ntaub ntawv los ntawm txawv kab hauv a derived kab.
Tsis tas li ntawd, kev hloov pauv hauv SSIS yog dab tsi?
Cov Sort Transformation in SSIS yog siv rau xaiv cov ntaub ntawv los ntawm Ascending lossis Descending Order, uas zoo ib yam li T-SQL hais kom ua BY nqe lus. Ib txhia kev hloov pauv zoo li Merge Kev hloov pauv thiab Merge Join Kev hloov pauv xav tau cov ntaub ntawv xaiv ua ntej siv lawv.
Dab tsi yog aggregator transformation hauv Informatica?
Aggregator transformation yog active kev hloov pauv yog siv los ua aggregate xam xws li sum, nruab nrab, thiab lwm yam. Cov hauj lwm aggregate yog ua nyob rau hauv ib pawg ntawm kab, yog li yuav tsum tau ib ntus placeholder khaws tag nrho cov ntaub ntawv no thiab ua cov xam.
Pom zoo:
Koj qhia tag nrho cov kev hloov pauv hauv Google Docs li cas?
Txhawm rau ua cov kev hloov kho hauv Google Docs, qhib lub 'Editing' ntawv qhia zaub mov nyob rau sab xis sab xis ntawm koj cov ntaub ntawv. Koj Google Doc tam sim no ua haujlwm raws nraim li aWord Doc thaum koj qhib 'Track Changes' Koj tuaj yeem pom leej twg ua qhov hloov pauv, thaum lawv ua thiab qhov hloov pauv li cas, ib yam li koj tuaj yeem ua tau hauv Lo Lus
Dab tsi yog tag nrho cov kab kev sib txuas lus uas xav tau rau kev sib txuas tag nrho rau taw tes network ntawm tsib lub khoos phis tawj rau lub khoos phis tawj?
Tus naj npawb ntawm cov kab sib txuas lus uas yuav tsum tau muaj rau kev sib txuas tag nrho ntawm qhov taw tes rau-taw tes ntawm yim lub khoos phis tawj yog nees nkaum yim. Ib tug tag nrho txuas cuaj lub computer network yuav tsum tau peb caug rau kab. Ib tug tag nrho txuas kaum lub computer network yuav tsum tau plaub caug tsib kab
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
Qhov txawv ntawm kev hloov kho thiab kev tswj tag nrho yog dab tsi?
Kev Tswj Tag Nrho tso cai rau koj nyeem, sau, hloov kho, thiab ua cov ntaub ntawv hauv lub nplaub tshev, hloov cov cwj pwm, kev tso cai, thiab coj tus tswv ntawm cov ntawv tais ceev tseg lossis cov ntaub ntawv hauv. Hloov kho tso cai rau koj nyeem, sau, hloov kho, thiab ua cov ntaub ntawv hauv daim nplaub tshev, thiab hloov cov cwj pwm ntawm cov ntawv tais ceev tseg lossis cov ntaub ntawv hauv
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