
MS Access As A Dev Tool
Access continues to be a highly efficient tool for business database development.
The Best Microsoft Access Database Solutions owner, consultant, and principal programmer is Alison Balter - a recognized expert Microsoft Access consultant. Alison is the author of 15 Microsoft Access training books and 200+ training videos. She is a frequent guest speaker at MS Access conferences and has developed hundreds of applications for businesses of all types.
We know your business data is important; we listen to your concerns, ask questions, and gather information from all stake holders. We discuss your needs and requirements for your database. We find out what you want, why you need various features so we can obtain as much information as possible. Once we have the information we need, we work with you to design the proper database architecture, plus the dashboards, the questions (queries), forms, and reports you need for an excellent database system.
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Access continues to be a highly efficient tool for business database development.
How to create a Microsoft Access application with some unique tips and tricks.
Your Access developer near me has some great info for you about using Access efficiently.
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Denormalization—Purposely Violating the Rules
Although the developer's goal is normalization, often it makes sense to deviate from normal forms. We refer to this process as denormalization. The primary reason for applying denormalization is to enhance performance.An example of when denormalization might be the preferred tactic could involve an open invoices table and a summarized accounting table. It might be impractical to calculate summarized accounting information for a customer when we need it. Instead, you can maintain the summary calculations in a summarized accounting table so that you can easily retrieve them as needed. Although the upside of this scenario is improved performance, the downside is that you must update the summary table whenever you make changes to the open invoices. This imposes a definite trade-off between performance and maintainability. You must decide whether the trade-off is worthwhile.
Integrity Rules
Although integrity rules are not part of normal forms, they are definitely part of the database design process. Integrity rules are broken into two categories. They include overall integrity rules and database-specific integrity rules.Overall Rules
The two types of overall integrity rules are referential integrity rules and entity integrity rules. Referential integrity rules dictate that a database does not contain orphan foreign key values. This means that . Child rows cannot be added for parent rows that do not exist. In other words, an order cannot be added for a nonexistent customer. . A primary key value cannot be modified if the value is used as a foreign key in a child table. This means that a CustomerID in the customers table cannot be changed if the orders table contains rows with that CustomerID. . A parent row cannot be deleted if child rows are found with that foreign key value. For example, a customer cannot be deleted if the customer has orders in the order table.Access programmer cities we serve: Access Programmers California