ABAP Select data from SAP table E2MARAM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E2MARAM 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 E2MARAM. 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 E2MARAM 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_E2MARAM TYPE STANDARD TABLE OF E2MARAM,
      WA_E2MARAM TYPE E2MARAM,
      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: <E2MARAM> TYPE E2MARAM.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E2MARAM.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E2MARAM
  INTO TABLE IT_E2MARAM.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E2MARAM
*  INTO TABLE @DATA(IT_E2MARAM2).
*--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_E2MARAM INDEX 1 INTO DATA(WA_E2MARAM2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E2MARAM ASSIGNING <E2MARAM>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E2MARAM>-MSGFN = 1.
<E2MARAM>-MATNR = 1.
<E2MARAM>-ERSDA = 1.
<E2MARAM>-ERNAM = 1.
<E2MARAM>-LAEDA = 1.

ENDLOOP.

LOOP AT IT_E2MARAM INTO WA_E2MARAM.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E2MARAM-AENAM, sy-vline,
  WA_E2MARAM-PSTAT, sy-vline,
  WA_E2MARAM-LVORM, sy-vline,
  WA_E2MARAM-MTART, sy-vline,
  WA_E2MARAM-MBRSH, sy-vline,
  WA_E2MARAM-MATKL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E2MARAM 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_E2MARAM 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_E2MARAM INTO WA_E2MARAM.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_E2MARAM-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E2MARAM-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN3, internal->external for field STOFF
CALL FUNCTION 'CONVERSION_EXIT_MATN3_OUTPUT'
  EXPORTING
    input =                      WA_E2MARAM-STOFF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E2MARAM-STOFF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E2MARAM-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E2MARAM-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EAN11, internal->external for field EAN11
CALL FUNCTION 'CONVERSION_EXIT_EAN11_OUTPUT'
  EXPORTING
    input =                      WA_E2MARAM-EAN11
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E2MARAM-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_E2MARAM_STR, 
MSGFN TYPE STRING,
MATNR TYPE STRING,
ERSDA TYPE STRING,
ERNAM TYPE STRING,
LAEDA TYPE STRING,
AENAM TYPE STRING,
PSTAT TYPE STRING,
LVORM TYPE STRING,
MTART TYPE STRING,
MBRSH TYPE STRING,
MATKL TYPE STRING,
BISMT TYPE STRING,
MEINS TYPE STRING,
BSTME TYPE STRING,
ZEINR TYPE STRING,
ZEIAR TYPE STRING,
ZEIVR TYPE STRING,
ZEIFO TYPE STRING,
AESZN TYPE STRING,
BLATT TYPE STRING,
BLANZ TYPE STRING,
FERTH TYPE STRING,
FORMT TYPE STRING,
GROES TYPE STRING,
WRKST TYPE STRING,
NORMT TYPE STRING,
LABOR TYPE STRING,
EKWSL TYPE STRING,
BRGEW TYPE STRING,
NTGEW TYPE STRING,
GEWEI TYPE STRING,
VOLUM TYPE STRING,
VOLEH TYPE STRING,
BEHVO TYPE STRING,
RAUBE TYPE STRING,
TEMPB TYPE STRING,
TRAGR TYPE STRING,
STOFF TYPE STRING,
SPART TYPE STRING,
KUNNR TYPE STRING,
WESCH TYPE STRING,
BWVOR TYPE STRING,
BWSCL TYPE STRING,
SAISO TYPE STRING,
ETIAR TYPE STRING,
ETIFO TYPE STRING,
EAN11 TYPE STRING,
NUMTP TYPE STRING,
LAENG TYPE STRING,
BREIT TYPE STRING,
HOEHE TYPE STRING,
MEABM TYPE STRING,
PRDHA TYPE STRING,
CADKZ TYPE STRING,
ERGEW TYPE STRING,
ERGEI TYPE STRING,
ERVOL TYPE STRING,
ERVOE TYPE STRING,
GEWTO TYPE STRING,
VOLTO TYPE STRING,
VABME TYPE STRING,
KZKFG TYPE STRING,
XCHPF TYPE STRING,
VHART TYPE STRING,
FUELG TYPE STRING,
STFAK TYPE STRING,
MAGRV TYPE STRING,
BEGRU TYPE STRING,
QMPUR TYPE STRING,
RBNRM TYPE STRING,
MHDRZ TYPE STRING,
MHDHB TYPE STRING,
MHDLP TYPE STRING,
VPSTA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E2MARAM_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_E2MARAM_STR-MSGFN sy-vline 
WA_E2MARAM_STR-MATNR sy-vline 
WA_E2MARAM_STR-ERSDA sy-vline 
WA_E2MARAM_STR-ERNAM sy-vline 
WA_E2MARAM_STR-LAEDA sy-vline 
WA_E2MARAM_STR-AENAM sy-vline 
WA_E2MARAM_STR-PSTAT sy-vline 
WA_E2MARAM_STR-LVORM sy-vline 
WA_E2MARAM_STR-MTART sy-vline 
WA_E2MARAM_STR-MBRSH sy-vline 
WA_E2MARAM_STR-MATKL sy-vline 
WA_E2MARAM_STR-BISMT sy-vline 
WA_E2MARAM_STR-MEINS sy-vline 
WA_E2MARAM_STR-BSTME sy-vline 
WA_E2MARAM_STR-ZEINR sy-vline 
WA_E2MARAM_STR-ZEIAR sy-vline 
WA_E2MARAM_STR-ZEIVR sy-vline 
WA_E2MARAM_STR-ZEIFO sy-vline 
WA_E2MARAM_STR-AESZN sy-vline 
WA_E2MARAM_STR-BLATT sy-vline 
WA_E2MARAM_STR-BLANZ sy-vline 
WA_E2MARAM_STR-FERTH sy-vline 
WA_E2MARAM_STR-FORMT sy-vline 
WA_E2MARAM_STR-GROES sy-vline 
WA_E2MARAM_STR-WRKST sy-vline 
WA_E2MARAM_STR-NORMT sy-vline 
WA_E2MARAM_STR-LABOR sy-vline 
WA_E2MARAM_STR-EKWSL sy-vline 
WA_E2MARAM_STR-BRGEW sy-vline 
WA_E2MARAM_STR-NTGEW sy-vline 
WA_E2MARAM_STR-GEWEI sy-vline 
WA_E2MARAM_STR-VOLUM sy-vline 
WA_E2MARAM_STR-VOLEH sy-vline 
WA_E2MARAM_STR-BEHVO sy-vline 
WA_E2MARAM_STR-RAUBE sy-vline 
WA_E2MARAM_STR-TEMPB sy-vline 
WA_E2MARAM_STR-TRAGR sy-vline 
WA_E2MARAM_STR-STOFF sy-vline 
WA_E2MARAM_STR-SPART sy-vline 
WA_E2MARAM_STR-KUNNR sy-vline 
WA_E2MARAM_STR-WESCH sy-vline 
WA_E2MARAM_STR-BWVOR sy-vline 
WA_E2MARAM_STR-BWSCL sy-vline 
WA_E2MARAM_STR-SAISO sy-vline 
WA_E2MARAM_STR-ETIAR sy-vline 
WA_E2MARAM_STR-ETIFO sy-vline 
WA_E2MARAM_STR-EAN11 sy-vline 
WA_E2MARAM_STR-NUMTP sy-vline 
WA_E2MARAM_STR-LAENG sy-vline 
WA_E2MARAM_STR-BREIT sy-vline 
WA_E2MARAM_STR-HOEHE sy-vline 
WA_E2MARAM_STR-MEABM sy-vline 
WA_E2MARAM_STR-PRDHA sy-vline 
WA_E2MARAM_STR-CADKZ sy-vline 
WA_E2MARAM_STR-ERGEW sy-vline 
WA_E2MARAM_STR-ERGEI sy-vline 
WA_E2MARAM_STR-ERVOL sy-vline 
WA_E2MARAM_STR-ERVOE sy-vline 
WA_E2MARAM_STR-GEWTO sy-vline 
WA_E2MARAM_STR-VOLTO sy-vline 
WA_E2MARAM_STR-VABME sy-vline 
WA_E2MARAM_STR-KZKFG sy-vline 
WA_E2MARAM_STR-XCHPF sy-vline 
WA_E2MARAM_STR-VHART sy-vline 
WA_E2MARAM_STR-FUELG sy-vline 
WA_E2MARAM_STR-STFAK sy-vline 
WA_E2MARAM_STR-MAGRV sy-vline 
WA_E2MARAM_STR-BEGRU sy-vline 
WA_E2MARAM_STR-QMPUR sy-vline 
WA_E2MARAM_STR-RBNRM sy-vline 
WA_E2MARAM_STR-MHDRZ sy-vline 
WA_E2MARAM_STR-MHDHB sy-vline 
WA_E2MARAM_STR-MHDLP sy-vline 
WA_E2MARAM_STR-VPSTA sy-vline      INTO ld_text SEPARATED BY SPACE.

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