Video: Daim Ntawv Qhia Tsim Table ua dab tsi?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Lub SQL CREATE TABLE Statement . Cov CREATE TABLE nqe lus yog siv rau tsim a rooj hauv database. Cov rooj yog teem rau hauv kab thiab kab; thiab ib leeg rooj yuav tsum muaj npe.
Ntawm no, nqe lus twg yog siv los tsim ib lub rooj?
SQL – CREATE TABLE Statement . CREATE TABLE nqe lus yog siv los tsim cov rooj hauv database. Rooj tau teeb tsa hauv kab thiab kab. Qhov twg kab yog cov cwj pwm thiab kab yog hu ua cov ntaub ntawv.
Tsis tas li, peb tuaj yeem tsim lub rooj hauv MS Word li cas? Nov yog yuav ua li cas ua ib lub rooj los ntawm Insert Table dialogue box:
- Nyem rau ntawm Table los ntawm cov ntawv qhia zaub mov bar. Xaiv Insert, thiab tom qab ntawd Table…
- Nkag mus rau tus lej xav tau ntawm kab thiab kab.
- Xaiv AutoFit tus cwj pwm yog tias koj xav kom lub rooj lub hlwb kom nthuav dav kom haum cov ntawv hauv lawv.
- Nyem OK los ntxig koj lub rooj.
Tsis tas li ntawd, koj yuav tsim ib lub rooj tshiab hauv SQL li cas?
Cia peb tam sim no dhia rau hauv cov ntsiab lus ntawm kev siv CEEB TOOM nqe lus rau tsim cov ntxhuav hauv SQL . Syntax: CREATE TABLE table_name (column1 data_type(loj), column2 data_type(size), column3 data_type(size),.); table_name: npe rooj . column1 npe ntawm thawj kab.
Tsim cov lus txib yog dab tsi?
Cov Tsim cov lus txib (CRTCMD) lus txib tsim tus neeg siv tshiab-txhais lus txib (yog, a lus txib txhais) uas siv tau tib yam lus txib kev txhawb nqa uas yog siv los ntawm IBM-muab lus txib . Cov lus txib txhais tau tias yog ib yam khoom uas tuaj yeem khaws cia hauv lub tsev qiv ntawv lub hom phiaj dav dav (QGPL) lossis hauv tsev qiv ntawv neeg siv.
Pom zoo:
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