You can use character-strings containing single-byte characters to form:
+-------------------------------IBM Extension--------------------------------+
You can use character-strings containing user-defined DBCS words to form:
DBCS character-strings are constructed using characters from the Double-Byte Character Set. DBCS character-strings can be embedded into nonnumeric strings, including mixed literals. Embedded DBCS character-strings must be delimited by an opening "shift-out" control character and a closing "shift-in" control character. DBCS literals may include characters that range from X'00' to X'FE' for both bytes. DBCS literals cannot include X'0F7F' (or X'0F7D' if the APOST option is selected).
+----------------------------End of IBM Extension----------------------------+
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