SAP DATA OBJECTS USAGE CHARLIKE documentation, setup help and example usage

ARTICLE

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

Flat structures

Structures that do not contain any references, internal tables, or
strings.
In non- Unicode programs also:

X

Hexadecimal

XSTRING

Hexadecimal string

Literals of the 'xxxx' and `yyyy` kind 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.