Get Beginning Visual Basic 2005 Databases PDF

By Thearon Willis

ISBN-10: 076458894X

ISBN-13: 9780764588945

As essentially the most well known programming languages on this planet, visible simple maintains to extend at the performance and suppleness of its framework. This booklet explains how you can use visible easy 2005 to put in writing effective database purposes that may be used all through an company.

With this educating device, you will tips on how to use queries, perspectives, and saved techniques to successfully entry and control facts out of your purposes. you will get an organization grab on utilizing ADO.NET in addition to OleDb, SQL, and Oracle to entry particular databases. Plus, hands-on examples and try-it-out workouts assist you positioned your interpreting into perform in order that with each one bankruptcy, you are going to steadily construct the items of a unmarried program.

What you'll research from this e-book

  • How ADO.NET keeps to conform as a construction block for having access to and manipulating info in relational databases
  • Ways to encrypt and decrypt information, hash passwords, and extra safe entry on your information
  • Techniques for gaining access to your net provider from either Windows(r) and internet functions
  • Best practices for utilizing enterprise good judgment and knowledge entry elements to supply record facts or replace information on your back-end databases

Who this ebook is for This ebook is for builders who are looking to learn how to write database functions and back-end databases, reminiscent of Microsoft(r) entry, Microsoft(r) SQL Server, and Oracle(r). a few adventure with visible simple 2005 is useful yet now not required.

Wrox starting publications are crafted to make studying programming languages and applied sciences more uncomplicated than you're thinking that, supplying a established, educational layout that would advisor you thru the entire options concerned.

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Additional info for Beginning Visual Basic 2005 Databases

Example text

With the addition of these new tables, your database design would now look like the one shown in Figure 1-5. Employee Table Manager Employees Table Manager Table EmployeeID FirstName LastName PhoneNumber LocationID JobTitleID ManagerEmployeeID ManagerID EmployeeID ManagerID FirstName LastName PhoneNumber LocationID Job Title Table Location Table JobTitleID JobTitle LocationID Location Figure 1-5 Third normal form The rules of the third normal form dictate that you eliminate columns that do not depend on the primary key.

Because a view is like a virtual table, you can execute SQL SELECT statements against a view, thereby selecting only the data from the view that you need to see. You can also limit the results by using a SQL Where clause and order the results using a SQL Order By clause. You learn more about these basic SQL clauses starting in Chapter 4 and more about views in Chapter 9. Log files Each database that you create has its own transaction log. The transaction log contains transactions that have been applied against your database.

Of course, you can use any naming convention that you like, but find one that works well for you and use it consistently in your database design. Notice that the Manager Employees table contains a primary key for itself, which will uniquely identify each record contained in this table. It also contains the primary keys from the Manager and Employee tables. These keys, as used in this table, are known as foreign keys, as a table may contain only one primary key. Let’s look at how you can identify the primary and foreign keys in a table using the naming convention that has been incorporated here.

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Beginning Visual Basic 2005 Databases by Thearon Willis


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