Tài liệu Database Systems - Part 13 pdf

... today’s date COP 4710: Database Systems (Day 17) Page 19 Mark Llewellyn The INVOICE Table in Access (-) COP 4710: Database Systems (Day 17) Page 1 Mark Llewellyn COP 4710: Database Systems Spring 2004 Introduction ... NOT NULL, PRIMARY KEY ( V_CODE)); COP 4710: Database Systems (Day 17) Page 13 Mark Llewellyn The VENDOR Table in Access (-) COP 4710: Database Syste...

Ngày tải lên: 21/01/2014, 18:20

... COP 4710: Database Systems (Day 3) Page 1 Mark Llewellyn COP 4710: Database Systems Spring 2004 Introduction to Database Systems – Part 2 BÀI 2, 1/2 ngày School of Electrical ... well-designed database produces, in an efficient way, a system that provides the correct information for the decision-making process to succeed. Database Design (cont.) COP 4710: Database Sys...

Ngày tải lên: 24/12/2013, 12:16

... joins later. COP 4710: Database Systems (Day 18) Page 1 Mark Llewellyn COP 4710: Database Systems Spring 2004 Introduction to SQL – Part 2 BÀI 14, 2 ngày COP 4710: Database Systems Spring 2004 Introduction ... Operator 5.62965 2965 0 A 67# .621 01.00 02< 886 0.86 02612@ 06...

Ngày tải lên: 21/01/2014, 18:20

... Tuan Anh Nguyen Ngoc * Date: 11/21/2006 * Contact Information. * - Email: [email]info.netdevelop@gmail.com[/email] * - Handheld: +84 905 202 088 */ namespace Ans.Utilities { public

Ngày tải lên: 15/12/2013, 01:16

... Example ERD customer customer-id customer-name street apartment-num phone-num date-of-birth age first-name middle-name last-name address city state zipcode street-name street-num ... have. Emp-Phone(emp-name, telephone-number, age, location, manufacturer, serial-num) Entity Sets vs. Attributes COP 4710: Database Systems (Day 4) Page 1 Mark Llewellyn COP 4710: Database Systems Spring...

Ngày tải lên: 24/12/2013, 12:16

... Database Systems (Day 5) Page 29 Mark Llewellyn Correspondence of E-R & UML Class Diagrams Entity sets and attributes customer customer-name customer-id customer-street customer-city E-R ... Generalization COP 4710: Database Systems (Day 5) Page 13 Mark Llewellyn User-defined: User-defined lower-level entity sets are not constrained by a membership condition; rather, the d...

Ngày tải lên: 24/12/2013, 12:16

... G} ) -) % COP 4710: Database Systems (Day 10) Page 1 Mark Llewellyn COP 4710: Database Systems Spring 2004 Introduction to Normalization BÀI 10, ½ ngày COP 4710: Database Systems Spring ... detail. Temporal relational databases and certain categories of spatial databases fall into the N1NF category. )) ),)% COP 4710: Datab...

Ngày tải lên: 21/01/2014, 18:20

... (cont.) COP 4710: Database Systems (Day 11) Page 1 Mark Llewellyn COP 4710: Database Systems Spring 2004 Introduction to Normalization – Part 2 BÀI 11, 1 ngày COP 4710: Database Systems Spring ... (cont.) A B C D E (AD) a 1 b 12 b 13 a 4 b 15 (AB) a 1 a 2 b 13 a 4 b 25 (BE) b 31 a 2 b 13 a 4 a 5 (CDE) b 41 b 42 a 3 a 4 a 5 (AE) a 1 b 52 b 13 a 4 a 5 COP 4710: Database...

Ngày tải lên: 21/01/2014, 18:20

... $ }A,B,C,D{D G = + COP 4710: Database Systems (Day 12) Page 1 Mark Llewellyn COP 4710: Database Systems Spring 2004 Introduction to Normalization – Part 3 BÀI 12, 1/2 ngày COP 4710: Database Systems Spring ... tested when using algorithm 3NF.2. A&8"9 COP 4710: Database Systems (Day 12) Page 13 Mark Llewellyn ...

Ngày tải lên: 21/01/2014, 18:20

... conjunction. COP 4710: Database Systems (Day 21) Page 1 Mark Llewellyn © COP 4710: Database Systems Spring 2004 Query Processing and Optimization BÀI 15, 1,5 ngày COP 4710: Database Systems Spring 2004 Query ... equi-join operation R * A=B S has the same effect as a natural join operation. COP 4710: Database Systems (Day 21) Page 22 Mark Llewellyn © Algorithms for Two-way Jo...

Ngày tải lên: 21/01/2014, 18:20