ABAP Select data from SAP table E1AENRM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E1AENRM 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 E1AENRM. 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 E1AENRM 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_E1AENRM TYPE STANDARD TABLE OF E1AENRM,
      WA_E1AENRM TYPE E1AENRM,
      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: <E1AENRM> TYPE E1AENRM.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E1AENRM.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E1AENRM
  INTO TABLE IT_E1AENRM.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E1AENRM
*  INTO TABLE @DATA(IT_E1AENRM2).
*--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_E1AENRM INDEX 1 INTO DATA(WA_E1AENRM2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E1AENRM ASSIGNING <E1AENRM>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E1AENRM>-AENNR = 1.
<E1AENRM>-AENST = 1.
<E1AENRM>-AENBE = 1.
<E1AENRM>-DATUV = 1.
<E1AENRM>-AETXT = 1.

ENDLOOP.

LOOP AT IT_E1AENRM INTO WA_E1AENRM.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E1AENRM-LTXSP, sy-vline,
  WA_E1AENRM-AEGRU, sy-vline,
  WA_E1AENRM-CCART, sy-vline,
  WA_E1AENRM-CONT1, sy-vline,
  WA_E1AENRM-AEFUN, sy-vline,
  WA_E1AENRM-UESTR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E1AENRM 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_E1AENRM 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_E1AENRM INTO WA_E1AENRM.


*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_E1AENRM_STR, 
AENNR TYPE STRING,
AENST TYPE STRING,
AENBE TYPE STRING,
DATUV TYPE STRING,
AETXT TYPE STRING,
LTXSP TYPE STRING,
AEGRU TYPE STRING,
CCART TYPE STRING,
CONT1 TYPE STRING,
AEFUN TYPE STRING,
UESTR TYPE STRING,
RLKEY TYPE STRING,
LVORM TYPE STRING,
EFF_TYPE TYPE STRING,
AERNG TYPE STRING,
TEREL TYPE STRING,
NACHT TYPE STRING,
INDAT TYPE STRING,
AUDAT TYPE STRING,
LTXSP_ISO TYPE STRING,
MSGFN TYPE STRING,
CHANGE_LEADER TYPE STRING,
STSMA TYPE STRING,
ERLED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E1AENRM_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_E1AENRM_STR-AENNR sy-vline 
WA_E1AENRM_STR-AENST sy-vline 
WA_E1AENRM_STR-AENBE sy-vline 
WA_E1AENRM_STR-DATUV sy-vline 
WA_E1AENRM_STR-AETXT sy-vline 
WA_E1AENRM_STR-LTXSP sy-vline 
WA_E1AENRM_STR-AEGRU sy-vline 
WA_E1AENRM_STR-CCART sy-vline 
WA_E1AENRM_STR-CONT1 sy-vline 
WA_E1AENRM_STR-AEFUN sy-vline 
WA_E1AENRM_STR-UESTR sy-vline 
WA_E1AENRM_STR-RLKEY sy-vline 
WA_E1AENRM_STR-LVORM sy-vline 
WA_E1AENRM_STR-EFF_TYPE sy-vline 
WA_E1AENRM_STR-AERNG sy-vline 
WA_E1AENRM_STR-TEREL sy-vline 
WA_E1AENRM_STR-NACHT sy-vline 
WA_E1AENRM_STR-INDAT sy-vline 
WA_E1AENRM_STR-AUDAT sy-vline 
WA_E1AENRM_STR-LTXSP_ISO sy-vline 
WA_E1AENRM_STR-MSGFN sy-vline 
WA_E1AENRM_STR-CHANGE_LEADER sy-vline 
WA_E1AENRM_STR-STSMA sy-vline 
WA_E1AENRM_STR-ERLED sy-vline      INTO ld_text SEPARATED BY SPACE.

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