Storing data in separate tables reduces the complexity of the table structure and reduces the need to keep redundant data in tables. For example, you can use the relational database to establish a logical relationship between students and classes in order to create a schedule. The database software (such as SQL Server) supports powerful commands that let you dynamically establish relationships between the tables. For example, a database for a school might contain separate tables for students and for class offerings. In a relational database, information is logically divided into separate tables. However, you might find it useful to understand a little about them. This article doesn't go very deeply into databases. For most business uses, though, data is stored in a relational database. You can store data in lots of ways, including text files and spreadsheets. With this basic understanding of databases, you're ready to learn how to create a simple database and perform operations such as adding, modifying, and deleting data.
In the example, the ID column is the primary key for the address book. This is known as the table's primary key, and you use it to identify each row in the table. IDįor most database tables, the table has to have a column that contains a unique identifier, like a customer number, account number, etc. Each column (sometimes referred to as fields) contains a value for each type of data: first name, last name, and so on. In database terms, each row is often referred to as a record. For each entry in the address book (that is, for each person) you have several pieces of information such as first name, last name, address, email address, and phone number.Ī typical way to picture data like this is as a table with rows and columns. You can use ASP.NET Web Pages 3 and Visual Studio 2013 (or Visual Studio Express 2013 for Web) however, the user interface will be different.
This tutorial also works with WebMatrix 3. Working with a Microsoft SQL Server Compact Edition database.These are the features introduced in the article: How to insert, update, and delete database records.This article describes how to use Microsoft WebMatrix tools to create a database in an ASP.NET Web Pages (Razor) website, and how to create pages that let you display, add, edit, and delete data.
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