DATA: s1(10) VALUE 'Hello',
      s2(10) VALUE 'ABAP',
      s3(10) VALUE 'World',
      result1(30),
      result2(30).

CONCATENATE s1 s2 s3 INTO result1.
CONCATENATE s1 s2 s3 INTO result2 SEPARATED BY '-'.

WRITE / result1.
WRITE / result2.
 
 
Serkan AKKAVAK
Computer Engineer
SAP Department Deputy Manager
Contact : serkurumsal@yandex.com