Cov txheej txheem:
Video: Yuav ua li cas koj tsim ib lub rooj hauv Teradata nrog cov lus xaiv?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2024-01-18 08:24
CREATE TABLE active_employees AS (xaiv * Los ntawm cov neeg ua haujlwm e WHERE e.active_flg = 'Y') NROG DATA;
- Tsim ib daim ntawv luam ntawm ib qho uas twb muaj lawm rooj .
- Tsim ib daim ntawv tshiab ntawm a rooj uas tsuas muaj qee qhov ntawm cov ntaub ntawv qub - ib qho subset.
- Tsim ib npl rooj tab sis nrog raws nraim tib yam qauv ntawm tus thawj.
Ib yam li ntawd, koj tuaj yeem nug, Kuv yuav luam ib lub rooj hauv Teradata li cas?
16.10 - Luam ib lub rooj - Teradata Cov ntaub ntawv Mover
- Hauv cov khoom browser, nyem lub thawv kos ib sab ntawm lub npe ntawm lub rooj koj xav luam.
- Nyem rau tso saib Table Settings dialog box.
- [Optional] Rau Teradata cov ntxhuav, xaiv ib qho ntawm cov txheej txheem hauv qab no hauv Copy the following to limit the copy job.
Ib sab saum toj, dab tsi yog sau cov txheeb cais hauv Teradata? Ib Teradata cov ntaub ntawv, lub hom phiaj ntawm PAUB STATISTICS yog to sau cov ntaub ntawv pej xeem rau ib lossis ntau kab ntawm lub hauv paus rooj, hash index, los yog koom index, ces xam ib tug statistical profile ntawm lub sau cov ntaub ntawv thiab khaws cov ntsiab lus hauv cov ntaub ntawv txhais lus.
Hais txog qhov no, dab tsi yog tsim multiset rooj hauv Teradata?
MULTISET . SET. A MULTISET rooj tso cai rau duplicate kab ua raws li ANSI/ISO SQL 2011 tus qauv. Ib SET rooj tsis pub duplicate kab. Yog tias muaj kev txwv tsis sib xws ntawm txhua kab lossis cov kab hauv kab rooj txhais, ces tus rooj tsis tuaj yeem muaj cov kab duplicate txawm tias nws tau tshaj tawm tias MULTISET.
Yuav ua li cas los tsim ib tug schema nyob rau hauv Teradata?
Teradata Studio Tus Neeg Siv Qhia Hauv Navigator, ob npaug nyem rau ntawm cov ntaub ntawv uas koj xav tau tsim tus schema . Cov npe qhib nyob rau hauv Object List Viewer. Hauv qhov Object List Viewer, tso saib schema lis thiab nias. Hauv Tsim Schema daim ntawv, nyem General thiab ntaus lub npe rau qhov tshiab schema.
Pom zoo:
Thaum koj reboot koj lub kaw lus lub computer ua raws li pib cov lus qhia khaws cia rau hauv hom kev nco Pawg ntawm cov lus teb xaiv?
Teb Cov Kws Tshaj Lij Tshaj Lij Tshaj Tawm Ib lub khoos phis tawj pib cov lus qhia tau muab khaws cia rau hauv hom nco hu ua Flash. Flash nco tuaj yeem sau rau thiab nyeem los ntawm, tab sis nws cov ntsiab lus tsis raug tshem tawm tom qab lub khoos phis tawj kaw. Lub cim xeeb Flash no feem ntau hu ua BIOS (Basic Input Output System)
Kuv yuav ua li cas thiaj li tau txais kuv lub rooj pivot lub rooj tsim rov qab?
Xaiv ib lub xovtooj ntawm tes hauv lub rooj pivot, nyem nyem rau ntawm koj tus nas, thiab xaiv 'Show Field List'. Qhov no yuav coj rov qab lub rooj pivot
Yuav ua li cas koj tsim ib lub rooj faib zaus nrog cov chav kawm?
Tsim Ib Pawg Sib Txuas Sib Tham Nrhiav qhov loj tshaj plaws thiab qhov tsawg tshaj plaws. Muab xam qhov ntau = Maximum - Yam tsawg kawg nkaus. Xaiv cov chav kawm uas xav tau. Nrhiav qhov dav ntawm chav kawm los ntawm kev faib qhov ntau los ntawm cov chav kawm thiab sib sau ua ke. Xaiv qhov chaw pib tsim nyog tsawg dua lossis sib npaug ntawm tus nqi yam tsawg kawg nkaus
Yuav ua li cas koj tsim ib lub rooj ntawm cov ntsiab lus?
Cov kauj ruam Pib ib nplooj ntawv tshiab tom qab nplooj ntawv npe. Cov Lus Qhia yuav tsum tshwm sim tom qab nplooj ntawv npe hauv cov ntaub ntawv. Sau cov npe ntawm cov ntaub ntawv raws li kev txiav txim. Ntxiv subheadings yog muaj. Sau tus lej nplooj ntawv rau txhua nqe lus. Muab cov ntsiab lus tso rau hauv ib lub rooj. Muab lub npe Table of Contents
Yuav ua li cas koj tsim ib phau ntawv nrog cov kab dawb paug hauv qab cov slides hauv PowerPoint?
Yog tias koj xav kho koj lub PowerPoint cov qauv hauv Microsoft Word ua ntej koj luam nws, yooj yim: Nkag mus rau Cov Ntaub Ntawv tab. ?Nias Export. Xaiv Tsim Daim Ntawv Qhia rau sab laug. ?Nias Tsim Daim Ntawv Qhia ntawm sab xis. Xaiv 'Cov kab dawb nyob ib sab ntawm cov swb' lossis 'Cov kab tsis muaj kab hauv qab swb' (nyob ntawm seb koj xav tau dab tsi) Nyem OK