ABAP Select data from SAP table E2IDRH1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E2IDRH1 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 E2IDRH1. 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 E2IDRH1 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_E2IDRH1 TYPE STANDARD TABLE OF E2IDRH1,
      WA_E2IDRH1 TYPE E2IDRH1,
      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: <E2IDRH1> TYPE E2IDRH1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E2IDRH1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E2IDRH1
  INTO TABLE IT_E2IDRH1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E2IDRH1
*  INTO TABLE @DATA(IT_E2IDRH12).
*--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_E2IDRH1 INDEX 1 INTO DATA(WA_E2IDRH12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E2IDRH1 ASSIGNING <E2IDRH1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E2IDRH1>-RELNUM = 1.
<E2IDRH1>-ELSIGN = 1.
<E2IDRH1>-DOCNUM = 1.
<E2IDRH1>-DOCTYP = 1.
<E2IDRH1>-IDOCTYP = 1.

ENDLOOP.

LOOP AT IT_E2IDRH1 INTO WA_E2IDRH1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E2IDRH1-CIMTYP, sy-vline,
  WA_E2IDRH1-DOCREL, sy-vline,
  WA_E2IDRH1-STATUS, sy-vline,
  WA_E2IDRH1-DIRECT, sy-vline,
  WA_E2IDRH1-MESTYP, sy-vline,
  WA_E2IDRH1-MESCOD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E2IDRH1 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_E2IDRH1 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_E2IDRH1 INTO WA_E2IDRH1.


*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 ALPHA, internal->external for field SNDPRN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E2IDRH1-SNDPRN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E2IDRH1-SNDPRN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EDIPV, internal->external for field SNDPFC
CALL FUNCTION 'CONVERSION_EXIT_EDIPV_OUTPUT'
  EXPORTING
    input =                      WA_E2IDRH1-SNDPFC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E2IDRH1-SNDPFC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RCVPRN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E2IDRH1-RCVPRN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E2IDRH1-RCVPRN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EDIPV, internal->external for field RCVPFC
CALL FUNCTION 'CONVERSION_EXIT_EDIPV_OUTPUT'
  EXPORTING
    input =                      WA_E2IDRH1-RCVPFC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E2IDRH1-RCVPFC.
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_E2IDRH1_STR, 
RELNUM TYPE STRING,
ELSIGN TYPE STRING,
DOCNUM TYPE STRING,
DOCTYP TYPE STRING,
IDOCTYP TYPE STRING,
CIMTYP TYPE STRING,
DOCREL TYPE STRING,
STATUS TYPE STRING,
DIRECT TYPE STRING,
MESTYP TYPE STRING,
MESCOD TYPE STRING,
MESFCT TYPE STRING,
OUTMOD TYPE STRING,
TEST TYPE STRING,
EXPRSS TYPE STRING,
SNDPRN TYPE STRING,
SNDPRT TYPE STRING,
SNDPFC TYPE STRING,
SNDPOR TYPE STRING,
SNDSAD TYPE STRING,
SNDLAD TYPE STRING,
RCVPRN TYPE STRING,
RCVPRT TYPE STRING,
RCVPFC TYPE STRING,
RCVPOR TYPE STRING,
RCVSAD TYPE STRING,
RCVLAD TYPE STRING,
CREDAT TYPE STRING,
CRETIM TYPE STRING,
STD TYPE STRING,
STDVRS TYPE STRING,
STDMES TYPE STRING,
REFINT TYPE STRING,
REFGRP TYPE STRING,
REFMES TYPE STRING,
ARCKEY TYPE STRING,
SERIAL TYPE STRING,
EDBVKY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E2IDRH1_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_E2IDRH1_STR-RELNUM sy-vline 
WA_E2IDRH1_STR-ELSIGN sy-vline 
WA_E2IDRH1_STR-DOCNUM sy-vline 
WA_E2IDRH1_STR-DOCTYP sy-vline 
WA_E2IDRH1_STR-IDOCTYP sy-vline 
WA_E2IDRH1_STR-CIMTYP sy-vline 
WA_E2IDRH1_STR-DOCREL sy-vline 
WA_E2IDRH1_STR-STATUS sy-vline 
WA_E2IDRH1_STR-DIRECT sy-vline 
WA_E2IDRH1_STR-MESTYP sy-vline 
WA_E2IDRH1_STR-MESCOD sy-vline 
WA_E2IDRH1_STR-MESFCT sy-vline 
WA_E2IDRH1_STR-OUTMOD sy-vline 
WA_E2IDRH1_STR-TEST sy-vline 
WA_E2IDRH1_STR-EXPRSS sy-vline 
WA_E2IDRH1_STR-SNDPRN sy-vline 
WA_E2IDRH1_STR-SNDPRT sy-vline 
WA_E2IDRH1_STR-SNDPFC sy-vline 
WA_E2IDRH1_STR-SNDPOR sy-vline 
WA_E2IDRH1_STR-SNDSAD sy-vline 
WA_E2IDRH1_STR-SNDLAD sy-vline 
WA_E2IDRH1_STR-RCVPRN sy-vline 
WA_E2IDRH1_STR-RCVPRT sy-vline 
WA_E2IDRH1_STR-RCVPFC sy-vline 
WA_E2IDRH1_STR-RCVPOR sy-vline 
WA_E2IDRH1_STR-RCVSAD sy-vline 
WA_E2IDRH1_STR-RCVLAD sy-vline 
WA_E2IDRH1_STR-CREDAT sy-vline 
WA_E2IDRH1_STR-CRETIM sy-vline 
WA_E2IDRH1_STR-STD sy-vline 
WA_E2IDRH1_STR-STDVRS sy-vline 
WA_E2IDRH1_STR-STDMES sy-vline 
WA_E2IDRH1_STR-REFINT sy-vline 
WA_E2IDRH1_STR-REFGRP sy-vline 
WA_E2IDRH1_STR-REFMES sy-vline 
WA_E2IDRH1_STR-ARCKEY sy-vline 
WA_E2IDRH1_STR-SERIAL sy-vline 
WA_E2IDRH1_STR-EDBVKY sy-vline      INTO ld_text SEPARATED BY SPACE.

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