The most specific type that both types are, or undefined if there is none: e.g. String for Varchar(15) and Varchar(2), Integer for Int and SmallInt, Number for SmallInt and Double. A type is its own ancestor.
undefined
String
Varchar(15)
Varchar(2)
Integer
Int
SmallInt
Number
Double
The most specific type that both types are, or
undefinedif there is none: e.g.StringforVarchar(15)andVarchar(2),IntegerforIntandSmallInt,NumberforSmallIntandDouble. A type is its own ancestor.