Secondary Navigation. 1  Active Duty Dental Care. 2  Guard/Reserve Dental Care. 3  TRICARE Dental Program. 4  TRICARE Retiree Dental Program. 5  Enrolling in the TRICARE Retiree Dental Program. Costs. 6  Dental Benefits for Survivors. 7  Find a Dentist.
â¢ Although char and varchar are character data fields, char is a fixed length data field and varchar is a variable size data field. â¢ Char can store only fixed size non-Unicode string characters, but varchar can store variable sizes of strings.
13 Responses to Database Basics Quick Note â The difference in Varchar and Nvarchar data types. 1  thank you very much. fast and easy to get to. great stuff. 2  Thank you, exactly the info I was looking for. 3  its really help fullâ¦.thanks Raymond Lewallen..thank u very much.. 4  Useful information for optimal use of datatype. Thanks.