SharePoint List Field Type Mappings to SQL Data Types

I've been wondering how SharePoint list field types map to SQL data types. I did some web searches but didn't find what I was looking for, so here's a link to the documentation explaining this (WSS v3): http://msdn.microsoft.com/en-us/library/ms437580(v=office.12).aspx. And here's a table of mappings as documented for the Type attribute.

SharePoint Field Type	SQL Data Type
AllDayEvent	bit
Attachments	bit
Boolean	bit
Calculated	sql_variant
Choice	nvarchar
Computed
ContentTypeId	varbinary
Counter	int
CrossProjectLink	bit
Currency	float
DateTime	datetime
File	uniqueidentifier
GridChoice	ntext
Guid	uniqueidentifier
Integer	int
Lookup	int
LookupMulti
ModStat	int
MultiChioce	ntext
MultiColumn
Note	ntext
Number	float
PageSeparator
Recurrence	bit
Text	nvarchar
ThreadIndex	varbinary
Threading	varchar
URL	nvarchar
User	int
UserMulti
WorkflowEventType
WorkflowStatus	nvarchar

 

On the empty ones, I'm not sure what the type should be or if there is even supposed to be a type.

The Type in the left column is the value of the Type attribute in a list Field definition. These <Field> elements are returned when you retrieve a list schema from the Lists web service.