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.
When performing concatenation operations between Varchar (Binary) (X) and Character (Binary) (Y), the result is Varchar (Binary) (X+Y). For Visual FoxPro functions that return Character values, if at least one parameter is a Varchar or Varchar (Binary) field in a table or cursor, the return type is Varchar.