Dynamic ABAP

FIELD-SYMBOLS <gt_dochd> TYPE ANY TABLE .
DATA: dr_tabref TYPE REF TO data.
 
CREATE DATA dr_tabref TYPE TABLE OF ('/B50672/AODOHD00').
ASSIGN dr_tabref->* TO <gt_dochd>.
 
SELECT * FROM ('/B50672/AODOHD00') INTO CORRESPONDING FIELDS OF TABLE <gt_dochd>
 
FIELD-SYMBOLS: <wa>   TYPE ANY,
               <data> TYPE ANY.
 
READ TABLE <gt_dochd> ASSIGNING <wa> WITH KEY 
      ('is_docid')   = <result_fields>-is_docid
      ('is_pstyear') = <result_fields>-is_pstyear.
 
 
      ASSIGN COMPONENT '/B50672/S_IPSDA' OF STRUCTURE <wa> TO <data>.