By Thearon Willis
As the most well known programming languages on the earth, visible easy keeps to extend at the performance and suppleness of its framework. This e-book explains tips to use visible easy 2005 to put in writing effective database functions that may be used all through an company.
With this instructing device, you will methods to use queries, perspectives, and saved approaches to successfully entry and control information out of your functions. 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 routines assist you positioned your studying into perform in order that with every one bankruptcy, you will progressively construct the items of a unmarried software.
What you'll research from this e-book
- How ADO.NET maintains to adapt as a development block for getting access to and manipulating info in relational databases
- Ways to encrypt and decrypt info, hash passwords, and additional safe entry in your facts
- Techniques for having access to your net carrier from either Windows(r) and net purposes
- Best practices for utilizing company good judgment and information entry elements to supply file info or replace facts on your back-end databases
Who this booklet is for This publication is for builders who are looking to discover ways to write database purposes and back-end databases, corresponding to Microsoft(r) entry, Microsoft(r) SQL Server, and Oracle(r). a few adventure with visible easy 2005 is useful yet no longer required.
Wrox starting courses are crafted to make studying programming languages and applied sciences more uncomplicated than you think that, offering a dependent, educational layout that would consultant you thru all of the strategies concerned.
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Additional info for Beginning Visual Basic 2005 Databases
Every user will be assigned to a role. The Roles table contains the various roles that may be assigned, such as Administrator, Manager, and User. The Roles table contains a column called Ranking. The roles will be defined by rank, so a role of Administrator has a higher ranking than Manager, and the Manager role has a higher ranking than User. You use this column later when selecting and displaying data from this table. Finally, notice that there is a foreign key reference from the ManagerID column to the UserID column.
Be aware that every database contains password files used to authenticate users performing administrative functions against the database. Relational Database Design A relational database contains tables, rows, and columns that are related to one another. A relational database that has been properly normalized will have more tables that contain fewer columns, rather than a few tables containing lots of columns. A normalized relational database actually improves storage efficiency and performance, even though it physically contains more tables than a non-normalized database does.
In the Log on to the server section, choose the type of authentication that your account has been set up with (consult your DBA if you did not set up the database and create an account yourself). If you are using a specific User ID and Password, check the Save my password check box. 7. 8. Select the ProjectTimeTracker database in the Select or enter a database name combo box. 9. 10. Click the Test Connection button to verify your credentials. If the test did not succeed, verify your credentials and contact your DBA if necessary.