ABAP Select data from SAP table E1NTHDR into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E1NTHDR 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 E1NTHDR. 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 E1NTHDR 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_E1NTHDR TYPE STANDARD TABLE OF E1NTHDR,
      WA_E1NTHDR TYPE E1NTHDR,
      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: <E1NTHDR> TYPE E1NTHDR.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E1NTHDR.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E1NTHDR
  INTO TABLE IT_E1NTHDR.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E1NTHDR
*  INTO TABLE @DATA(IT_E1NTHDR2).
*--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_E1NTHDR INDEX 1 INTO DATA(WA_E1NTHDR2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E1NTHDR ASSIGNING <E1NTHDR>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E1NTHDR>-QMNUM = 1.
<E1NTHDR>-QMART = 1.
<E1NTHDR>-VBELN = 1.
<E1NTHDR>-AUFNR = 1.
<E1NTHDR>-STTXT = 1.

ENDLOOP.

LOOP AT IT_E1NTHDR INTO WA_E1NTHDR.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E1NTHDR-USTXT, sy-vline,
  WA_E1NTHDR-STRNO, sy-vline,
  WA_E1NTHDR-EQUNR, sy-vline,
  WA_E1NTHDR-BAUTL, sy-vline,
  WA_E1NTHDR-QMTXT, sy-vline,
  WA_E1NTHDR-PRIOK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E1NTHDR 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_E1NTHDR 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_E1NTHDR INTO WA_E1NTHDR.


*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_E1NTHDR_STR, 
QMNUM TYPE STRING,
QMART TYPE STRING,
VBELN TYPE STRING,
AUFNR TYPE STRING,
STTXT TYPE STRING,
USTXT TYPE STRING,
STRNO TYPE STRING,
EQUNR TYPE STRING,
BAUTL TYPE STRING,
QMTXT TYPE STRING,
PRIOK TYPE STRING,
AUSVN TYPE STRING,
AUZTV TYPE STRING,
STRMN TYPE STRING,
STRUR TYPE STRING,
LTRMN TYPE STRING,
LTRUR TYPE STRING,
IWERK TYPE STRING,
ARBPLE TYPE STRING,
SWERK TYPE STRING,
INGRP TYPE STRING,
STORT TYPE STRING,
MSGRP TYPE STRING,
BEBER TYPE STRING,
BUKRS TYPE STRING,
GSBER TYPE STRING,
KOKRS TYPE STRING,
KOSTL TYPE STRING,
DAUFN TYPE STRING,
QMDAT TYPE STRING,
MZEIT TYPE STRING,
DEPTRESP TYPE STRING,
DEPTDESCR TYPE STRING,
MSAUS TYPE STRING,
AUSWK TYPE STRING,
RBNR TYPE STRING,
NOTIF_LANGU TYPE STRING,
BAUTL_EXTERNAL TYPE STRING,
BAUTL_VERSION TYPE STRING,
BAUTL_GUID TYPE STRING,
BAUTL_LONG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E1NTHDR_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_E1NTHDR_STR-QMNUM sy-vline 
WA_E1NTHDR_STR-QMART sy-vline 
WA_E1NTHDR_STR-VBELN sy-vline 
WA_E1NTHDR_STR-AUFNR sy-vline 
WA_E1NTHDR_STR-STTXT sy-vline 
WA_E1NTHDR_STR-USTXT sy-vline 
WA_E1NTHDR_STR-STRNO sy-vline 
WA_E1NTHDR_STR-EQUNR sy-vline 
WA_E1NTHDR_STR-BAUTL sy-vline 
WA_E1NTHDR_STR-QMTXT sy-vline 
WA_E1NTHDR_STR-PRIOK sy-vline 
WA_E1NTHDR_STR-AUSVN sy-vline 
WA_E1NTHDR_STR-AUZTV sy-vline 
WA_E1NTHDR_STR-STRMN sy-vline 
WA_E1NTHDR_STR-STRUR sy-vline 
WA_E1NTHDR_STR-LTRMN sy-vline 
WA_E1NTHDR_STR-LTRUR sy-vline 
WA_E1NTHDR_STR-IWERK sy-vline 
WA_E1NTHDR_STR-ARBPLE sy-vline 
WA_E1NTHDR_STR-SWERK sy-vline 
WA_E1NTHDR_STR-INGRP sy-vline 
WA_E1NTHDR_STR-STORT sy-vline 
WA_E1NTHDR_STR-MSGRP sy-vline 
WA_E1NTHDR_STR-BEBER sy-vline 
WA_E1NTHDR_STR-BUKRS sy-vline 
WA_E1NTHDR_STR-GSBER sy-vline 
WA_E1NTHDR_STR-KOKRS sy-vline 
WA_E1NTHDR_STR-KOSTL sy-vline 
WA_E1NTHDR_STR-DAUFN sy-vline 
WA_E1NTHDR_STR-QMDAT sy-vline 
WA_E1NTHDR_STR-MZEIT sy-vline 
WA_E1NTHDR_STR-DEPTRESP sy-vline 
WA_E1NTHDR_STR-DEPTDESCR sy-vline 
WA_E1NTHDR_STR-MSAUS sy-vline 
WA_E1NTHDR_STR-AUSWK sy-vline 
WA_E1NTHDR_STR-RBNR sy-vline 
WA_E1NTHDR_STR-NOTIF_LANGU sy-vline 
WA_E1NTHDR_STR-BAUTL_EXTERNAL sy-vline 
WA_E1NTHDR_STR-BAUTL_VERSION sy-vline 
WA_E1NTHDR_STR-BAUTL_GUID sy-vline 
WA_E1NTHDR_STR-BAUTL_LONG sy-vline      INTO ld_text SEPARATED BY SPACE.

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