Edit Table (SQL Server Compact)
The SQL Server Compact 3.5 Edit Table dialog box in SQL Server Management Studio, SQL Server Management Studio Express and Server Explorer in Visual Studio lets you modify a table and columns for a SQL Server Compact 3.5 database.
Options
Delete
Click Delete to delete the selected column.
Name
Enter the name of the table.
Column Name
Displays the name of the columns and lets you modify the maximum length and size of the data in the column. You can change the length of the column only for variable-length data types.
Data Type
Displays the type of data that the column can hold. For more information, see "Using Data Types" in SQL Server Books Online.
Length
Displays the size of the column.
Allow Nulls
Displays whether the column accepts null values. Permissible values are Yes and No.
Unique
Displays whether there is a unique constraint defined specifically for the column. If you set the Unique value equal to Yes for two columns, SQL Server Compact 3.5 will create two unique constraints, not a single constraint across both columns.
Primary Key
Specify whether the column is part of a primary key.