MIS WEB DESIGN

XHTML Web Design for Beginners: Introduction

XHTML 1.0 Latin-1 Character References

Article Index XHTML 1.0 Latin-1 Character References XHTML 1.0 Special Character References XHTML 1.0 Symbol Character References Introduction This article details the Latin-1 character references and corresponding entity references available to your XHTML 1.0 documents. This is the first of a series of three articles detailing each of the three sets laid out in the XHTML DTDs. An explanation of character references

database

Understanding Relational Databases: Summary

Chapter Index Introduction Normalization Foreign Keys Denormalization Referential Integrity Summary This is a free sample chapter from Beginning PHP 4 Databases published by Wrox Press. Summary In this chapter, we have discussed the principles behind relational database design. Let us skim through them here. Data is stored in two-dimensional tables consisting of columns (fields) and rows (records). Multi-dimensional data is

database

Referential Integrity – Understanding Relational Databases & Their Importance

Chapter Index Introduction Normalization Foreign Keys Denormalization Referential Integrity Summary This is a free sample chapter from Beginning PHP 4 Databases published by Wrox Press. What Is Referential Integrity Many relational database management systems include mechanisms that enforce a database’s referential integrity. Referential integrity is another measure of the consistency of the data in a database. Referential integrity is violated when the

database

Database Denormalization: Understanding Relational Databases w/ Example

Chapter Index Introduction Normalization Foreign Keys Denormalization Referential Integrity Summary This is a free sample chapter from Beginning PHP 4 Databases published by Wrox Press. Denormalization Now that we’ve invested a valuable chunk of our day in learning about normalization, it’s time to introduce the concept of database denormalization, which is exactly what it sounds like: decreasing a schema’s level of

database

Understanding Relational Databases: Foreign Keys

Chapter Index Introduction Normalization Foreign Keys Denormalization Referential Integrity Summary This is a free sample chapter from Beginning PHP 4 Databases published by Wrox Press. Foreign Keys Now that the Project table has a reliable primary key, it makes sense that the Donation table should refer to the ProjectID rather than the name of the project, since the whole point is to definitively identify the project