ABAP Select data from SAP table E1MARMM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E1MARMM 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 E1MARMM. 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 E1MARMM 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_E1MARMM TYPE STANDARD TABLE OF E1MARMM,
      WA_E1MARMM TYPE E1MARMM,
      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: <E1MARMM> TYPE E1MARMM.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E1MARMM.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E1MARMM
  INTO TABLE IT_E1MARMM.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E1MARMM
*  INTO TABLE @DATA(IT_E1MARMM2).
*--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_E1MARMM INDEX 1 INTO DATA(WA_E1MARMM2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E1MARMM ASSIGNING <E1MARMM>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E1MARMM>-MSGFN = 1.
<E1MARMM>-MEINH = 1.
<E1MARMM>-UMREZ = 1.
<E1MARMM>-UMREN = 1.
<E1MARMM>-EAN11 = 1.

ENDLOOP.

LOOP AT IT_E1MARMM INTO WA_E1MARMM.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E1MARMM-NUMTP, sy-vline,
  WA_E1MARMM-LAENG, sy-vline,
  WA_E1MARMM-BREIT, sy-vline,
  WA_E1MARMM-HOEHE, sy-vline,
  WA_E1MARMM-MEABM, sy-vline,
  WA_E1MARMM-VOLUM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E1MARMM 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_E1MARMM 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_E1MARMM INTO WA_E1MARMM.


*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.

*Conversion exit EAN11, internal->external for field EAN11
CALL FUNCTION 'CONVERSION_EXIT_EAN11_OUTPUT'
  EXPORTING
    input =                      WA_E1MARMM-EAN11
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E1MARMM-EAN11.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

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

TYPES: BEGIN OF T_E1MARMM_STR, 
MSGFN TYPE STRING,
MEINH TYPE STRING,
UMREZ TYPE STRING,
UMREN TYPE STRING,
EAN11 TYPE STRING,
NUMTP TYPE STRING,
LAENG TYPE STRING,
BREIT TYPE STRING,
HOEHE TYPE STRING,
MEABM TYPE STRING,
VOLUM TYPE STRING,
VOLEH TYPE STRING,
BRGEW TYPE STRING,
GEWEI TYPE STRING,
MESUB TYPE STRING,
GTIN_VARIANT TYPE STRING,
/CWM/TY2TQ TYPE STRING,
NEST_FTR TYPE STRING,
MAX_STACK TYPE STRING,
CAPAUSE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E1MARMM_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_E1MARMM_STR-MSGFN sy-vline 
WA_E1MARMM_STR-MEINH sy-vline 
WA_E1MARMM_STR-UMREZ sy-vline 
WA_E1MARMM_STR-UMREN sy-vline 
WA_E1MARMM_STR-EAN11 sy-vline 
WA_E1MARMM_STR-NUMTP sy-vline 
WA_E1MARMM_STR-LAENG sy-vline 
WA_E1MARMM_STR-BREIT sy-vline 
WA_E1MARMM_STR-HOEHE sy-vline 
WA_E1MARMM_STR-MEABM sy-vline 
WA_E1MARMM_STR-VOLUM sy-vline 
WA_E1MARMM_STR-VOLEH sy-vline 
WA_E1MARMM_STR-BRGEW sy-vline 
WA_E1MARMM_STR-GEWEI sy-vline 
WA_E1MARMM_STR-MESUB sy-vline 
WA_E1MARMM_STR-GTIN_VARIANT sy-vline 
WA_E1MARMM_STR-/CWM/TY2TQ sy-vline 
WA_E1MARMM_STR-NEST_FTR sy-vline 
WA_E1MARMM_STR-MAX_STACK sy-vline 
WA_E1MARMM_STR-CAPAUSE sy-vline      INTO ld_text SEPARATED BY SPACE.

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