ABAP Select data from SAP table FMFGRLAYOUT_DEF into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FMFGRLAYOUT_DEF table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to FMFGRLAYOUT_DEF. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the FMFGRLAYOUT_DEF table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_FMFGRLAYOUT_DEF TYPE STANDARD TABLE OF FMFGRLAYOUT_DEF,
      WA_FMFGRLAYOUT_DEF TYPE FMFGRLAYOUT_DEF,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <FMFGRLAYOUT_DEF> TYPE FMFGRLAYOUT_DEF.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_FMFGRLAYOUT_DEF.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM FMFGRLAYOUT_DEF
  INTO TABLE IT_FMFGRLAYOUT_DEF.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMFGRLAYOUT_DEF
*  INTO TABLE @DATA(IT_FMFGRLAYOUT_DEF2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_FMFGRLAYOUT_DEF INDEX 1 INTO DATA(WA_FMFGRLAYOUT_DEF2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_FMFGRLAYOUT_DEF ASSIGNING <FMFGRLAYOUT_DEF>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMFGRLAYOUT_DEF>-MANDT = 1.
<FMFGRLAYOUT_DEF>-LAYOUTID = 1.
<FMFGRLAYOUT_DEF>-SEQNR = 1.
<FMFGRLAYOUT_DEF>-LINENR = 1.
<FMFGRLAYOUT_DEF>-PARASET = 1.

ENDLOOP.

LOOP AT IT_FMFGRLAYOUT_DEF INTO WA_FMFGRLAYOUT_DEF.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMFGRLAYOUT_DEF-PARA01, sy-vline,
  WA_FMFGRLAYOUT_DEF-PARA02, sy-vline,
  WA_FMFGRLAYOUT_DEF-PARA03, sy-vline,
  WA_FMFGRLAYOUT_DEF-PARA04, sy-vline,
  WA_FMFGRLAYOUT_DEF-PARA05, sy-vline,
  WA_FMFGRLAYOUT_DEF-PARA06, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMFGRLAYOUT_DEF you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_FMFGRLAYOUT_DEF TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_FMFGRLAYOUT_DEF INTO WA_FMFGRLAYOUT_DEF.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_FMFGRLAYOUT_DEF_STR, 
MANDT TYPE STRING,
LAYOUTID TYPE STRING,
SEQNR TYPE STRING,
LINENR TYPE STRING,
PARASET TYPE STRING,
PARA01 TYPE STRING,
PARA02 TYPE STRING,
PARA03 TYPE STRING,
PARA04 TYPE STRING,
PARA05 TYPE STRING,
PARA06 TYPE STRING,
PARA07 TYPE STRING,
PARA08 TYPE STRING,
PARA09 TYPE STRING,
PARA10 TYPE STRING,
PARA11 TYPE STRING,
PARA12 TYPE STRING,
PARA13 TYPE STRING,
PARA14 TYPE STRING,
PARA15 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMFGRLAYOUT_DEF_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_FMFGRLAYOUT_DEF_STR-MANDT sy-vline 
WA_FMFGRLAYOUT_DEF_STR-LAYOUTID sy-vline 
WA_FMFGRLAYOUT_DEF_STR-SEQNR sy-vline 
WA_FMFGRLAYOUT_DEF_STR-LINENR sy-vline 
WA_FMFGRLAYOUT_DEF_STR-PARASET sy-vline 
WA_FMFGRLAYOUT_DEF_STR-PARA01 sy-vline 
WA_FMFGRLAYOUT_DEF_STR-PARA02 sy-vline 
WA_FMFGRLAYOUT_DEF_STR-PARA03 sy-vline 
WA_FMFGRLAYOUT_DEF_STR-PARA04 sy-vline 
WA_FMFGRLAYOUT_DEF_STR-PARA05 sy-vline 
WA_FMFGRLAYOUT_DEF_STR-PARA06 sy-vline 
WA_FMFGRLAYOUT_DEF_STR-PARA07 sy-vline 
WA_FMFGRLAYOUT_DEF_STR-PARA08 sy-vline 
WA_FMFGRLAYOUT_DEF_STR-PARA09 sy-vline 
WA_FMFGRLAYOUT_DEF_STR-PARA10 sy-vline 
WA_FMFGRLAYOUT_DEF_STR-PARA11 sy-vline 
WA_FMFGRLAYOUT_DEF_STR-PARA12 sy-vline 
WA_FMFGRLAYOUT_DEF_STR-PARA13 sy-vline 
WA_FMFGRLAYOUT_DEF_STR-PARA14 sy-vline 
WA_FMFGRLAYOUT_DEF_STR-PARA15 sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.