ABAP queries with dynamic WHERE clause

     DATA l_where(100) OCCURS 0 WITH HEADER LINE.
   
     APPEND 'laufd = p_laufd' TO l_where.
     APPEND ' and ' TO l_where.
     APPEND 'laufi = p_laufi' TO l_where.

     SELECT * FROM reguh INTO CORRESPONDING FIELDS OF TABLE it_reguh
     WHERE (l_where).  // Dynamically generate the WHERE clause