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www.elarion.com C? S? D? Li?U [email_address] Never stop improving quality Ph?n 1: T?ng quan v? CSDL
Kh¨¢i ni?m c? b?n (1/4) C? s? d? li?u (database): C? s? d? li?u (CSDL) l¨¤ m?t h? th?ng th?ng tin c¨® c?u tr¨²c ???c l?u tr? tr¨ºn c¨¢c thi?t b? b?ng t?, ??a t?,...?? th?a m?n y¨ºu c?u khai th¨¢c c?a nhi?u ng??i s? d?ng. ? u ?i?m c?a CSDL: Gi?m s? tr¨´ng l?p th?ng tin Truy xu?t d? li?u m?t c¨¢ch d? d¨¤ng Kh? n?ng chia s? th?ng tin cho nhi?u ng??i s? d?ng
Kh¨¢i ni?m c? b?n (2/4) C¨¢c ??i t??ng: Ng??i qu?n tr? CSDL. Ng??i ph¨¢t tri?n ?ng d?ng v¨¤ l?p tr¨¬nh. Ng??i d¨´ng cu?i. Nh?ng v?n ?? m¨¤ CSDL ph?i gi?i quy?t: T¨ªnh ch? quy?n c?a d? li?u. T¨ªnh b?o m?t v¨¤ khai th¨¢c th?ng tin c?a ng??i d¨´ng. Tranh ch?p d? li?u. ??m b?o an to¨¤n d? li?u khi c¨® s? c?.
Kh¨¢i ni?m c? b?n (3/4) H? qu?n tr? CSDL(Database Management System): L¨¤ t?p h?p c¨¢c ch??ng tr¨¬nh cho ph¨¦p qu?n l? v¨¤ ?i?u khi?n truy xu?t d? li?u trong CSDL. M?t s? h? qu?n tr? c? s? d? li?u ph? bi?n:
Kh¨¢i ni?m c? b?n (4/4) C¨¢c y?u t? trong h? qu?n tr? CSDL: Ng?n ng? giao ti?p gi?a ng??i s? d?ng v¨¤ CSDL. C? ch? gi?i quy?t v?n ?? tranh ch?p d? li?u. C¨® c? ch? sao l?u ph?c v¨¤ ph?c h?i d? li?u . Giao di?n th?n thi?n d? s? d?ng.
T¨¤i li?u tham kh?o T¨¤i li?u tham kh?o: http://www.scribd.com/doc/7374417/Giao-Trinh-Co-so-du-lieu

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Phan1

  • 1. www.elarion.com C? S? D? Li?U [email_address] Never stop improving quality Ph?n 1: T?ng quan v? CSDL
  • 2. Kh¨¢i ni?m c? b?n (1/4) C? s? d? li?u (database): C? s? d? li?u (CSDL) l¨¤ m?t h? th?ng th?ng tin c¨® c?u tr¨²c ???c l?u tr? tr¨ºn c¨¢c thi?t b? b?ng t?, ??a t?,...?? th?a m?n y¨ºu c?u khai th¨¢c c?a nhi?u ng??i s? d?ng. ? u ?i?m c?a CSDL: Gi?m s? tr¨´ng l?p th?ng tin Truy xu?t d? li?u m?t c¨¢ch d? d¨¤ng Kh? n?ng chia s? th?ng tin cho nhi?u ng??i s? d?ng
  • 3. Kh¨¢i ni?m c? b?n (2/4) C¨¢c ??i t??ng: Ng??i qu?n tr? CSDL. Ng??i ph¨¢t tri?n ?ng d?ng v¨¤ l?p tr¨¬nh. Ng??i d¨´ng cu?i. Nh?ng v?n ?? m¨¤ CSDL ph?i gi?i quy?t: T¨ªnh ch? quy?n c?a d? li?u. T¨ªnh b?o m?t v¨¤ khai th¨¢c th?ng tin c?a ng??i d¨´ng. Tranh ch?p d? li?u. ??m b?o an to¨¤n d? li?u khi c¨® s? c?.
  • 4. Kh¨¢i ni?m c? b?n (3/4) H? qu?n tr? CSDL(Database Management System): L¨¤ t?p h?p c¨¢c ch??ng tr¨¬nh cho ph¨¦p qu?n l? v¨¤ ?i?u khi?n truy xu?t d? li?u trong CSDL. M?t s? h? qu?n tr? c? s? d? li?u ph? bi?n:
  • 5. Kh¨¢i ni?m c? b?n (4/4) C¨¢c y?u t? trong h? qu?n tr? CSDL: Ng?n ng? giao ti?p gi?a ng??i s? d?ng v¨¤ CSDL. C? ch? gi?i quy?t v?n ?? tranh ch?p d? li?u. C¨® c? ch? sao l?u ph?c v¨¤ ph?c h?i d? li?u . Giao di?n th?n thi?n d? s? d?ng.
  • 6. T¨¤i li?u tham kh?o T¨¤i li?u tham kh?o: http://www.scribd.com/doc/7374417/Giao-Trinh-Co-so-du-lieu

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