In Microsoft Access, you can add records to an existing table that already as data and resize the columns that contain the fields and data, especially if there is not enough space within the columns ...

Fields are elements in a table. They are formed from different data types, such as text or numbers. A field may be designated as a primary key, where it has a unique value for each record, is indexed, ...

When you create a Microsoft Access table, Access will automatically create a primary key to your database table. Still, you can also specify the field you want as the primary key for your database ...