User-Defined Data Types Suppose that employee ID numbers consist of one character and two digits. An EMPNO data type would have a CHAR(3) representation and a permissible value range of A00-Z99.
User-Defined Data Types Suppose that employee ID numbers consist of one character and two digits. An EMPNO data type would have a CHAR(3) representation and a permissible value range of A00-Z99.