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Dab tsi yog qhov txawv ntawm SQL thiab database?
Dab tsi yog qhov txawv ntawm SQL thiab database?

Video: Dab tsi yog qhov txawv ntawm SQL thiab database?

Video: Dab tsi yog qhov txawv ntawm SQL thiab database?
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KEV SIJ HAWM :

SQL ntawv yog ib hom lus uas siv los khiav koj database whereas MySQL yog ib qho ntawm thawj qhov chaw qhib database muaj hauv kev ua lag luam. SQL ntawv yog siv hauv nkag mus, hloov kho, thiab tswj cov ntaub ntawv hauv adatabase thaum MySQL yog RDBMS uas tso cai rau khaws cov ntaub ntawv uas muaj hauv database

Tsis tas li ntawd, SQL yog dab tsi hauv database?

SQL ntawv (hais "ess-que-el") sawv cev rau Cov Lus Nug Lus Nug. SQL ntawv cov nqe lus yog siv los ua cov haujlwm xws li hloov kho cov ntaub ntawv ntawm a database , los yog retrievedata los ntawm a database . Qee qhov kev sib raug zoo database tswj systems uas siv SQL ntawv yog: Oracle, Sybase, Microsoft SQL ntawv Server, Access, Ingres, thiab lwm yam.

Ib yam li ntawd, SQL puas yog qhov system? sˌkjuːˈ?l/ (mloog) S-Q-L , /ˈsiːkw?l/ "sequel"; Structured QueryLanguage) yog ib hom lus tshwj xeeb uas siv hauv programming thiab tsim los tswj cov ntaub ntawv tuav hauv kev sib raug zoo database tswj qhov system (RDBMS), los yog rau kev ua cov kwj dej hauv kev tswj hwm cov ntaub ntawv sib raug zoo qhov system (RDSMS).

Ib yam li ntawd, tib neeg nug, qhov txawv ntawm SQL thiab NoSQL databases yog dab tsi?

Ntsiab Qhov sib txawv ntawm SQL thiab NoSQL SQL Database yog Relational Database anda structured ib qhov whereas NoSQL yog tsis muaj kev sib raug zoo database yuav ua tau ntau cov ntaub ntawv thiab faib ntau tshaj li qauv. SQL databases yog vertically scalable whereas NoSQL databases yog horizontallyscalable.

Cov kev pab cuam twg siv SQL?

Qee qhov kev paub zoo tshaj plaws database software program suav nrog:

  • ADABAS.
  • IB DB2.
  • Microsoft Access.
  • Microsoft Excel.
  • Microsoft SQL Server.
  • MySQL.
  • Oracle RDBMS.
  • Ceev Base.

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