Database systems concepts 4th edition phần 3 docx

... between $ 130 0 and $1500, we write account account-number branch-name balance P. x conditions x ≥ 130 0 x ≤ 1500 Silberschatz−Korth−Sudarshan: Database System Concepts, Fourth Edition II. Relational Databases ... q3 (4,B),D= B +1. Silberschatz−Korth−Sudarshan: Database System Concepts, Fourth Edition II. Relational Databases 5. Other Relational Languages 222 © The McGraw−Hill C...

Ngày tải lên: 08/08/2014, 18:22

... commit> Figure 17 .3 State of the log and database corresponding to T 0 and T 1 . Silberschatz−Korth−Sudarshan: Database System Concepts, Fourth Edition VI. Database System Architecture 18. Database ... nodes. Silberschatz−Korth−Sudarshan: Database System Concepts, Fourth Edition VI. Database System Architecture 18. Database System Architecture 6 83 © The McGraw...

Ngày tải lên: 08/08/2014, 18:22

... relevant from a database perspective, so we do not cover it here. Silberschatz−Korth−Sudarshan: Database System Concepts, Fourth Edition III. Object−Based Databases and XML 10. XML 38 3 © The McGraw−Hill ... sectors. Silberschatz−Korth−Sudarshan: Database System Concepts, Fourth Edition III. Object−Based Databases and XML 10. XML 38 5 © The McGraw−Hill Companies, 2001 10.6...

Ngày tải lên: 08/08/2014, 18:22

... returns Silberschatz−Korth−Sudarshan: Database System Concepts, Fourth Edition IV. Data Storage and Querying 13. Query Processing 498 © The McGraw−Hill Companies, 2001 13. 3 Selection Operation 497 In relational systems, ... file. Silberschatz−Korth−Sudarshan: Database System Concepts, Fourth Edition IV. Data Storage and Querying 13. Query Processing 504 © The McGraw−Hill C...

Ngày tải lên: 08/08/2014, 18:22

... 4. Silberschatz−Korth−Sudarshan: Database System Concepts, Fourth Edition V. Transaction Management 16. Concurrency Control 5 93 © The McGraw−Hill Companies, 2001 594 Chapter 16 Concurrency Control T 3 : lock-X(B); read(B); B ... transforma- tions using the equivalence rules in Section 14 .3. 1. a. σ θ 1 ∧θ 2 ∧θ 3 (E)=σ θ 1 (σ θ 2 (σ θ 3 (E))) b. σ θ 1 ∧θ 2 (E 1 θ 3 E 2 )=σ θ...

Ngày tải lên: 08/08/2014, 18:22

... Database System Concepts, Fourth Edition VII. Other Topics 23. Advanced Data Types and New Applications 868 © The McGraw−Hill Companies, 2001 23. 3 Spatial and Geographic Data 875 23. 3.5 .3 ... movies. Silberschatz−Korth−Sudarshan: Database System Concepts, Fourth Edition VII. Other Topics 23. Advanced Data Types and New Applications 870 © The McGraw−Hill Companies, 2001 2...

Ngày tải lên: 08/08/2014, 18:22