After you feel comfortable creating new tables in the Design view, you might want to dive right in and create tables in the Datasheet view. Creating tables this way immediately creates a table with 20 field columns and 30 record rows. This method still requires, however, that you enter the Table Design view to specify the key field, the field data types, field descriptions, and any field property changes.
Creating tables in the Datasheet view is really useful only if you feel the need to quickly enter some data into the table before setting up the table's properties. To create a table in the Datasheet view, follow these steps:
Creating a table in the Datasheet view might be fine for quickly entering data, but you will still probably need to switch to the Table Design view at some point and set up the various field data types and properties.
You can switch to the Design view from the Datasheet view by clicking the View icon on the Table Datasheet toolbar. Remember to save any changes to the table's design that you make in the Design view.