Cov txheej txheem:
Video: Dab tsi yog cov yam ntxwv siab heev ntawm SQL?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Cia kuv qhia koj txog cov yam ntxwv ntawm SQL
- Kev ua haujlwm siab.
- Muaj Muaj.
- Scalability thiab Flexibility.
- Kev them nyiaj yug Robust Transactional.
- Kev ruaj ntseg siab.
- Comprehensive Application Development.
- Tswj Yooj Yim.
- Qhib Qhov Chaw.
Ib yam li ib tug yuav nug, dab tsi yog cov yam ntxwv ntawm SQL?
Cov yam ntxwv ntawm SQL
- SQL yog ib qho yooj yim kawm.
- SQL yog siv los saib xyuas cov ntaub ntawv los ntawm kev sib raug zoo database tswj systems.
- SQL tuaj yeem ua cov lus nug tawm tsam cov ntaub ntawv.
- SQL yog siv los piav qhia cov ntaub ntawv.
- SQL yog siv los txhais cov ntaub ntawv hauv database thiab tswj nws thaum xav tau.
- SQL yog siv los tsim thiab tso cov ntaub ntawv thiab cov lus.
Qhov thib ob, SQL Server yog dab tsi thiab nws cov nta? SQL Server yog kev sib raug zoo database tswj system (RDBMS) tsim los ntawm Microsoft. Nws yog tsim thiab tsim los sib tw nrog MySQL thiab Oracle database. SQL Server Management Studio (SSMS) yog lub ntsiab interface cuab yeej rau SQL Server , thiab nws txhawb ob qho tib si 32-ntsis thiab 64-ntsis ib puag ncig.
Ntawm no, dab tsi yog qhov kev txawj ntse SQL?
Advanced Topics
- Muaj nuj nqi, khaws cia cov txheej txheem, pob.
- Pivoting data: CAS & PIVOT syntax.
- Cov lus nug Hierarchical.
- Cursors: Implicit thiab meej.
- Ua rau.
- Dynamic SQL.
- Materialized Views.
- Query Optimization: Index.
Puas yog SQL txhawb cov lus programming?
SQL ntawv (Structured Query Lus ) yog kev tswj database lus rau relational databases. SQL ntawv nws tus kheej yog tsis yog a programming lus , tab sis nws tus qauv tso cai tsim cov txheej txheem txuas ntxiv rau nws, uas txuas ntxiv mus rau kev ua haujlwm ntawm kev paub tab programming lus.
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