Cov txheej txheem:
Video: Kuv yuav tsim Oracle SQL lus nug los ntawm CSV cov ntaub ntawv li cas?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Cov kauj ruam los xa cov lus nug rau CSV hauv Oracle SQL Developer
- Kauj ruam 1: Khiav koj nug . Ua ntej, koj yuav tsum khiav koj nug hauv SQL ntawv Tus tsim tawm.
- Kauj ruam 2: Qhib Export Wizard.
- Kauj Ruam 3: Xaiv tus CSV hom ntawv thiab qhov chaw rau export koj ntaub ntawv .
- Kauj ruam 4: Export nug tshwm sim rau CSV .
Ntawm no, kuv yuav tsim cov ntaub ntawv CSV hauv Oracle li cas?
Oracle SQL Developer:
- Right-click lub rooj lub npe nyob rau hauv cov khoom ntoo saib.
- Xaiv Export.
- Xaiv CSV. Lub qhov rais Export Data tshwm tuaj.
- Nyem Format tab.
- Xaiv hom li: CSV.
- Sau ib lub npe ntawm cov ntaub ntawv thiab qhov chaw.
- Nyem kab tab.
- Xyuas cov kab uas koj xav kom export.
Tom qab ntawd, lo lus nug yog, Kuv yuav xa cov lus nug SQL mus rau csv li cas? 12 Teb
- Qhib SQL Server Management Studio.
- Mus rau Cov Cuab Yeej> Kev Xaiv> Cov Lus Nug Cov Lus Nug> SQL Server> Cov Lus Qhia Rau Cov Ntawv.
- Nyob rau sab xis, muaj ib lub npov poob npe hu ua Output Format.
- Xaiv Comma Delimited thiab nyem OK.
Raws li txoj cai, kuv yuav tsim cov ntaub ntawv CSV hauv Sqlplus li cas?
Yog tias koj xav siv SQL*Plus Command-line, koj tsuas yog muab cov lus txib sqlplus los ntawm koj lub plhaub:
- $ sqlplus.
- $ sqlplus [email tiv thaiv]//machine.domain:port/database.
- teeb colsep, teeb headsep tawm nplooj ntawv loj 0 teeb trimspool rau.
- teem lineize # teem numwidth #
- spool file_path.
- spool tawm.
- SELECT title, primary_author NTAWM phau ntawv;
Koj yuav xa cov ntaub ntawv li cas rau hauv CSV hauv Oracle siv PL SQL?
Yuav Ua Li Cas Export Cov Ntaub Ntawv rau hauv CSV Cov Ntaub Ntawv hauv Oracle Siv PL SQL txheej txheem
- Tsim ib Lub Hom Phiaj uas koj yuav sau CSV cov ntaub ntawv.
- Tsim cov txheej txheem Database hauv Scott schema lossis yog tias koj tab tom tsim nyob rau hauv lwm lub tswv yim ces xyuas kom tseeb tias koj muaj lub rooj Emp hauv qhov schema, lwm yam koj yuav tsum tau hloov tus cursor thiab cov ntaub ntawv xa mus rau lwm lub rooj.
- Tam sim no khiav cov txheej txheem raws li hauv qab no:
Pom zoo:
Yuav ua li cas koj tuaj yeem txav qhov taw tes nrawm nrawm mus rau qhov pib ntawm cov lus nug cov lus nug?
T lossis F: Nias Ctrl + txoj cai xub yuam sij kom txav qhov taw tes rau qhov pib ntawm lo lus tom ntej
Kuv yuav ua li cas thiaj tsim tau ZIP cov ntaub ntawv nrog ntau cov ntaub ntawv?
Muab ob peb cov ntaub ntawv mus rau hauv ib qho zippedfolder kom yooj yim sib faib ib pawg ntawm cov ntaub ntawv. Nrhiav cov ntaub ntawv lossis nplaub tshev uas koj xav zip. Nias thiab tuav (lossis right-click) cov ntaub ntawv lossis ntawv tais ceev tseg, xaiv (lossis taw tes rau) Xa mus rau, thiab tom qab ntawd xaiv Compressed (zipped) folder
Vim li cas kem taw qhia cov ntaub ntawv khaws cia ua cov ntaub ntawv nkag ntawm disks sai dua li kab qhia cov ntaub ntawv khaws cia?
Kem oriented databases (aka columnar databases) yog qhov tsim nyog rau kev ntsuas kev ua haujlwm ntau dua vim tias cov ntaub ntawv hom ntawv (kem hom) qiv nws tus kheej kom nrawm dua cov lus nug ua - scans, aggregation thiab lwm yam. Ntawm qhov tod tes, kab oriented databases khaws ib kab (thiab tag nrho nws. kab) contiguously
Yuav ua li cas rau txim nyob rau hauv Is Nrias teb rau nyiag computer cov ntaub ntawv cov cuab tam los yog tej software qhov chaw code los ntawm ib tug neeg lub koom haum los yog los ntawm lwm yam txhais tau tias?
Kev piav qhia: Kev rau txim hauv Is Nrias teb rau kev nyiag cov ntaub ntawv hauv computer, cov khoom muaj nqis lossis ib qho software cov cai los ntawm ib lub koom haum, ib tus neeg, lossis los ntawm lwm txoj kev yog raug kaw 3 xyoo thiab raug nplua ntawm Rs. 500,000
Kuv yuav tsim cov ntaub ntawv SQL lus nug li cas?
Tsim thiab ua tiav SQL Query Xaiv Cov Ntaub Ntawv> Tshiab> SQL Cov Ntaub Ntawv los ntawm cov ntawv qhia zaub mov tseem ceeb. Hauv Enter lossis Xaiv Parent Folder lub thawv, xaiv Java project koj nyuam qhuav tsim. Sau cov ntaub ntawv npe. Koom nrog cov ntaub ntawv SQL no nrog Apache Derby kev sib txuas profile los ntawm kev qhia txog Database Server Hom, Kev Sib Txuas Profile Name, thiab Database Name