Designing Tables

The topics in this section provide information to help you design effective tables.

Table Planning Guidelines

Introduces the main tasks in designing a table.

Assigning a Data Type to a Column

Explains the data types available in SQL Server.These include system-supplied data types, user-defined alias data types, and Microsoft .NET Framework common language runtime (CLR) user-defined types.

Autonumbering and Identifier Columns

Explains the concept of creating system-generated table values that are unique to a table or a computer network.

Computed Columns

Explains how to create virtual columns that use values computed from other columns in the same table.

Enforcing Data Integrity

Provides guidelines for designing PRIMARY KEY, FOREIGN KEY, UNIQUE, and CHECK constraints; designing defaults; and specifying nullability in table definitions.