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DataBase Integrity
E-Case.doc
When designing and maintaining a database, it is essential that you preserve the database integrity. If you don`t you have, at best, not done your job. At worse, you have done a disservice to your client. The most efficient way to implement Referential Integrity is by using triggers, a poorly understood technique. Although VFP supports triggers and automatically generates Referential Integrity code, its implementation has many shortcomings. This session will demonstrate how to overcome these deficiencies and provide you with a firm understanding of the theoretical and practical aspects of enforcing database integrity.
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Geändert:
1/17/2003
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Autor:
Elie Muyal
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Database Maintenance and Integrity
E_CASE.DOC
In the past, the issue of database design in the PC environment has been very much neglected by both the developers of database applications and by the providers of development tools. There are many reasons for this. Due to the hardware limitations in processing power as well as disk space, developers developed database applications which were necessarily small and simple for use by a single user. Well aware of the hardware limitations, customers were neither demanding nor sophisticated. They were prepared to computerize only a small segment of their business without going into every detail and without really knowing for what to ask. As they could not have an ambitious information system containing 100% of all relevant information, they settled for very small databases containing few tables.
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Geändert:
1/16/2003
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Autor:
Elie Muyal
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