ABAP Tips for Dynamic ABAP programming

A very simple program to select data from database table dynamically.

FIELD-SYMBOLS:  ' ' TYPE STANDARD TABLE.

DATA: TABREF TYPE REF TO DATA.

*Selection Screen for Table Name entry
PARAMETERS: L_TABLE TYPE DD02L-TABNAME DEFAULT 'MARA'.

*Create data reference and assignment to field symbol.
CREATE DATA TABREF TYPE STANDARD TABLE OF (L_TABLE).
ASSIGN TABREF->* TO  .



*Data Selection

SELECT * FROM (L_TABLE) INTO TABLE   ' '.

*Display Output Data
CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'
  EXPORTING
    I_STRUCTURE_NAME = L_TABLE
  TABLES
    T_OUTTAB         = .
IF SY-SUBRC <> 0.
  MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
  WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.