Data Objects for Character-Type Operations

The data types that can be interpreted as character types are:

• C
  Character

• N
  Numeric character

• D
  Date

• T
  Time

• STRING
  Character string

• X
  Hexadecimal

• XSTRING
  Hexadecimal string

• Flat structures
  Structures that do not contain any references, internal tables, or strings.
  
  

Literals of the 'xxxx' and `yyyy` sort are character-type, as are text elements ( "TEXT-xxx", "'xxxx'(xxx)"). Literals of the nnnn kind (numeric literals) are not character-type.

In Unicode progams, stricter constraints apply to character-type operands.