Beginning Database Design- P5 docx

... guilty. Mishandling Keywords and Categories A common problem in database design is the failure to properly deal with keywords and categories. Many database applications involve data that is categorized ... exists that needs to be understood before any design of a database should proceed further. As you have seen in the previous chapters, databases are often set up to solve one immedia...

Ngày tải lên: 28/03/2014, 09:20

... Microsoft Access database, dBase database, Oracle Database, MySQL, Ingres, or any relational database — it doesn’t matter. All of the coding in this book is written intentionally to be non -database specific, ... Building Fast-Performing Database Models 193 The Needs of Different Database Models 194 Factors Affecting OLTP Database Model Tuning 194 Factors Affecting Client-Server...

Ngày tải lên: 10/04/2014, 09:05

Ngày tải lên: 17/12/2013, 11:15

... and ROLLBACK Transaction management refers to the capability of a relational database management system to execute database commands in groups, known as transactions. A transaction is a group ... 6-7: DatabaseUtilities — JDBC code package jdbc_bible.part2; import java.awt.event.*; import java.sql.*; import java.util.Vector; import sun.jdbc.odbc.JdbcOdbcDriver; public class D...

Ngày tải lên: 26/01/2014, 18:20

... on Database Systems, Vol. 13, No. 1, March 1933. Physical Database Design for Relational Databases l 93 -the workload on a database changes substantially, -new tables are added, -the database ... application of these valid methods. ACM Transactions on Database Systems, Vol. 13, No. 1, March 1988. Physical Database Design for Rdational Databases - 101 calculated each C, (a...

Ngày tải lên: 20/02/2014, 05:21

... important aspect of database implementation, and careful tuning of indexes is an important database administration task for a large database. Being able to reduce the time for a database operation ... in the process of beginning the design phase of a database life cycle, it is worth considering a wider range of DBMS options than just relational databases. Some other databas...

Ngày tải lên: 23/03/2014, 16:20

... relational databases. Most databases in use today are relational, and the focus in this book will be to design a relational database. Before we can actually get into relational databases, we ... asking that you design a database of parts for her company. Ms. Smith is the user. You are the database designer. What Ms. Smith tells you about the parts will be the database description....

Ngày tải lên: 27/06/2014, 08:20

Ngày tải lên: 11/09/2012, 15:49

Ngày tải lên: 25/09/2012, 11:14