SAP (ABAP) - Editor de conexiones RFC

Transacción: SM59

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SAP (ABAP) - Recuperar estructura de una tabla dinamica

*------------------------------------------------------------
* Recuperar estructura de la tabla dinamica
  DATA: table_descr_ref TYPE REF TO cl_abap_tabledescr,
        descr_ref       TYPE REF TO cl_abap_typedescr,
        struc_descr_ref TYPE REF TO cl_abap_structdescr.

  DATA: tg_tab_struc    TYPE abap_compdescr_tab.

  table_descr_ref
     ?= cl_abap_tabledescr=>describe_by_data(  ).

  CALL METHOD table_descr_ref->get_table_line_type
    RECEIVING
      p_descr_ref = descr_ref.

  struc_descr_ref ?= descr_ref.

  tg_tab_struc[] = struc_descr_ref->components[].
*------------------------------------------------------------

SAP (ABAP) - ITAB dinamica

*&-------------------------------------------------------------*
*& Report  CREAR_ITAB_DINAMICA                                 *
*&-------------------------------------------------------------*
REPORT  CREAR_ITAB_DINAMICA.

type-pools : abap, slis.
field-symbols:  type standard table,
               ,
               .
data: dyn_table    type ref to data,
      dyn_line     type ref to data,
      wa_fieldcat type lvc_s_fcat,
      it_fieldcat type lvc_t_fcat.

*ALV declaraciones
data: fieldcatalog type slis_t_fieldcat_alv with header line,
      gd_tab_group type slis_t_sp_group_alv,
      gd_layout    TYPE slis_layout_alv,
      gd_repid     like sy-repid.

selection-screen begin of block block1 with frame.
parameters: p_table(30type c default 'SFLIGHT'.
selection-screen end of block block1.

***********************************************************************
*start-of-selection.
start-of-selection.
  perform get_table_structure.
  perform create_itab_dynamically.
  perform get_data.
  perform display_data.

*&---------------------------------------------------------------------*
*&      Form  get_table_structure
*&---------------------------------------------------------------------*
*       Recuperar estructura de la tabla SAP
*----------------------------------------------------------------------*
form get_table_structure.
  data : it_tabdescr type abap_compdescr_tab,
         wa_tabdescr type abap_compdescr.
  data : ref_table_descr type ref to cl_abap_structdescr.

* Recupera estructura
  ref_table_descr ?= cl_abap_typedescr=>describe_by_name( p_table ).
  it_tabdescr[] = ref_table_descr->components[].
  loop at it_tabdescr into wa_tabdescr.
*   Catalogo para el ALV
    clear wa_fieldcat.
    wa_fieldcat-fieldname = wa_tabdescr-name .
    wa_fieldcat-datatype  = wa_tabdescr-type_kind.
    wa_fieldcat-inttype   = wa_tabdescr-type_kind.
    wa_fieldcat-intlen    = wa_tabdescr-length.
    wa_fieldcat-decimals  = wa_tabdescr-decimals.
    append wa_fieldcat to it_fieldcat.
  endloop.
endform.                    "get_table_structure

*&---------------------------------------------------------------------*
*&      Form  create_itab_dynamically
*&---------------------------------------------------------------------*
*       Creacion dinamica de la tabla interna
*----------------------------------------------------------------------*
form create_itab_dynamically.
* Crear tabla interna dinamica y asignarla al Field-Symbol
  call method cl_alv_table_create=>create_dynamic_table
    EXPORTING
      it_fieldcatalog = it_fieldcat
    IMPORTING
      ep_table        = dyn_table.
  assign dyn_table->* to .
* Crear work area dinamica y asignarla al Field Symbol
  create data dyn_line like line of .
  assign dyn_line->* to .
endform.                    "create_itab_dynamically

*&---------------------------------------------------------------------*
*&      Form  get_data
*&---------------------------------------------------------------------*
*       Rellenar itab dinamico
*----------------------------------------------------------------------*
form get_data.
  select * into CORRESPONDING FIELDS OF TABLE  
             from (p_table).
endform.                    "get_data

*&---------------------------------------------------------------------*
*&      Form  display_data
*&---------------------------------------------------------------------*
*       Visulaizar datos usando ALV
*----------------------------------------------------------------------*
FORM display_data.
  perform build_fieldcatalog.
  perform build_layout.
  perform display_alv_report.
ENDFORM.                    " display_data

*&---------------------------------------------------------------------*
*&      Form  BUILD_FIELDCATALOG
*&---------------------------------------------------------------------*
*       Construir el Catalogo para el ALV, usando la struc. de tabla SAP
*----------------------------------------------------------------------*
form build_fieldcatalog.

  DATA: it_fcat  TYPE slis_t_fieldcat_alv.

  CALL FUNCTION 'REUSE_ALV_FIELDCATALOG_MERGE'
    EXPORTING
      i_structure_name       = p_table
    CHANGING
      ct_fieldcat            = it_fcat
    EXCEPTIONS
      inconsistent_interface = 1
      program_error          = 2
      OTHERS                 = 3.
  IF sy-subrc <> 0.
    MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
            WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
  ENDIF.

  fieldcatalog[] =  it_fcat[].
endform.                    " BUILD_FIELDCATALOG

*&---------------------------------------------------------------------*
*&      Form  BUILD_LAYOUT
*&---------------------------------------------------------------------*
*       Construir el layout para el ALV
*----------------------------------------------------------------------*
form build_layout.
  gd_layout-colwidth_optimize = 'X'.
endform.                    " BUILD_LAYOUT

*&---------------------------------------------------------------------*
*&      Form  DISPLAY_ALV_REPORT
*&---------------------------------------------------------------------*
*       Visualizar en ALV
*----------------------------------------------------------------------*
form display_alv_report.
  gd_repid = sy-repid.
  call function 'REUSE_ALV_GRID_DISPLAY'
    EXPORTING
      i_callback_program = gd_repid
      is_layout          = gd_layout
      it_fieldcat        = fieldcatalog[]
      i_save             = 'X'
    TABLES
      t_outtab           = 
    EXCEPTIONS
      program_error      = 1
      others             = 2.
endform.                    " DISPLAY_ALV_REPORT

SAP (ABAP) - ALV con columnas dinámicas

*&---------------------------------------------------------------------*
*& Report Z_ALV_COLUMNAS_DINAMICAS
*&
*&---------------------------------------------------------------------*
*&
*&
*&---------------------------------------------------------------------*

REPORT z_alv_columnas_dinamicas.

TYPE-POOLS: slis.
FIELD-SYMBOLS: TYPE STANDARD TABLE, " Tabla interna dinamica
, " Field symbol para Work area
TYPE ANY. " Field symbol para asignar valores

PARAMETERS: p_cols(5) TYPE c, " Input number of columns
p_rows(5) TYPE c.

DATA: t_newtable TYPE REF TO data,
t_newline TYPE REF TO data,
fs_fldcat TYPE slis_t_fieldcat_alv,
t_fldcat TYPE lvc_t_fcat,
wa_it_fldcat TYPE lvc_s_fcat,
wa_colno(2) TYPE n,
wa_flname(5) TYPE c.

****************
** Crear campos.
****************
DO p_cols TIMES.
CLEAR wa_it_fldcat.
MOVE sy-index TO wa_colno.
CONCATENATE 'COL'
wa_colno
INTO wa_flname.
wa_it_fldcat-fieldname = wa_flname.
wa_it_fldcat-datatype = 'CHAR'.
wa_it_fldcat-intlen = 10.
APPEND wa_it_fldcat TO t_fldcat.
ENDDO.

* Crear tabla interna y asignarlo al FS
CALL METHOD cl_alv_table_create=>create_dynamic_table
EXPORTING
it_fieldcatalog = t_fldcat
IMPORTING
ep_table = t_newtable.
ASSIGN t_newtable->* TO .
* Crear work area y asignarlo al FS
CREATE DATA t_newline LIKE LINE OF .
ASSIGN t_newline->* TO .

*************************
** Rellenar tabla interna
*************************
DATA: fieldname(20) TYPE c.
DATA: fieldvalue(10) TYPE c.
DATA: index(3) TYPE c.
DATA: index2(3) TYPE c.
DO p_rows TIMES.
index2 = sy-index.
DO p_cols TIMES.
index = sy-index.
MOVE sy-index TO wa_colno.
CONCATENATE 'COL'
wa_colno
INTO wa_flname.

* Asignar el valor
CONCATENATE 'VALOR ' index '-' index2 INTO
fieldvalue.
CONDENSE fieldvalue NO-GAPS.
ASSIGN COMPONENT wa_flname
OF STRUCTURE TO .
= fieldvalue.
ENDDO.

* Añadir a la tabla interna dinamica
APPEND TO .
ENDDO.

***************************
** Visualizar tabla interna
***************************
DATA: wa_cat LIKE LINE OF fs_fldcat.
DO p_cols TIMES.
CLEAR wa_cat.
MOVE sy-index TO wa_colno.
CONCATENATE 'COL'
wa_colno
INTO wa_flname.
wa_cat-fieldname = wa_flname.
wa_cat-seltext_s = wa_flname.
wa_cat-outputlen = '10'.
APPEND wa_cat TO fs_fldcat.
ENDDO.


* Llamada al ALV

CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'
EXPORTING
it_fieldcat = fs_fldcat
TABLES
t_outtab = .