### 1.5.2.3 Available Columns

There are a number of column types available for use with the `web.database.object` module. These include: `String`, `StringSelect`, `Text`, `Bool`, `Integer`, `IntegerSelect`, `Float`, `FloatSelect`, `Date`, `DateSelect`, `Time`, `TimeSelect`, `DateTime`, `DateTimeSelect`, `Email` and `URL`

Each `web.database.object` column is derived for the corresponding `web.form.field` field which means it behaves in exactly the same way. You can see the available options in the `web.form.field` documentation. Each `web.database.object` column has two more parameters in addition to those of its corresponding `web.form.field`. These are unique and key described in the previous example.