ABAP Select data from SAP table E2HRTR4 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E2HRTR4 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 E2HRTR4. 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 E2HRTR4 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_E2HRTR4 TYPE STANDARD TABLE OF E2HRTR4,
      WA_E2HRTR4 TYPE E2HRTR4,
      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: <E2HRTR4> TYPE E2HRTR4.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E2HRTR4.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E2HRTR4
  INTO TABLE IT_E2HRTR4.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E2HRTR4
*  INTO TABLE @DATA(IT_E2HRTR42).
*--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_E2HRTR4 INDEX 1 INTO DATA(WA_E2HRTR42).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E2HRTR4 ASSIGNING <E2HRTR4>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E2HRTR4>-KOART = 1.
<E2HRTR4>-MOMAG = 1.
<E2HRTR4>-KOMOK = 1.
<E2HRTR4>-BETRG = 1.
<E2HRTR4>-WAER5 = 1.

ENDLOOP.

LOOP AT IT_E2HRTR4 INTO WA_E2HRTR4.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E2HRTR4-WAER3, sy-vline,
  WA_E2HRTR4-BUKRS, sy-vline,
  WA_E2HRTR4-GSBER, sy-vline,
  WA_E2HRTR4-KOKRS, sy-vline,
  WA_E2HRTR4-KOSTL, sy-vline,
  WA_E2HRTR4-AUFNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E2HRTR4 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_E2HRTR4 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_E2HRTR4 INTO WA_E2HRTR4.


*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 KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E2HRTR4-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E2HRTR4-KOSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E2HRTR4-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E2HRTR4-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field POSNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_E2HRTR4-POSNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E2HRTR4-POSNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field NPLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E2HRTR4-NPLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E2HRTR4-NPLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field VORNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_E2HRTR4-VORNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E2HRTR4-VORNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KDAUF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E2HRTR4-KDAUF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E2HRTR4-KDAUF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PRZNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E2HRTR4-PRZNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E2HRTR4-PRZNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit FMCIS, internal->external for field FIPOS
CALL FUNCTION 'CONVERSION_EXIT_FMCIS_OUTPUT'
  EXPORTING
    input =                      WA_E2HRTR4-FIPOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E2HRTR4-FIPOS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E2HRTR4-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E2HRTR4-EBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SKOST
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E2HRTR4-SKOST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E2HRTR4-SKOST.
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_E2HRTR4_STR, 
KOART TYPE STRING,
MOMAG TYPE STRING,
KOMOK TYPE STRING,
BETRG TYPE STRING,
WAER5 TYPE STRING,
WAER3 TYPE STRING,
BUKRS TYPE STRING,
GSBER TYPE STRING,
KOKRS TYPE STRING,
KOSTL TYPE STRING,
AUFNR TYPE STRING,
KSTRG TYPE STRING,
POSNR TYPE STRING,
NPLNR TYPE STRING,
VORNR TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
PAOBJNR TYPE STRING,
PRZNR TYPE STRING,
FISTL TYPE STRING,
FIPOS TYPE STRING,
GEBER TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
SGSBR TYPE STRING,
SKOST TYPE STRING,
LSTAR TYPE STRING,
EXBEL TYPE STRING,
MWSKZ TYPE STRING,
OTYPE TYPE STRING,
STELL TYPE STRING,
POHRS TYPE STRING,
DART TYPE STRING,
UDART TYPE STRING,
SGTXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E2HRTR4_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_E2HRTR4_STR-KOART sy-vline 
WA_E2HRTR4_STR-MOMAG sy-vline 
WA_E2HRTR4_STR-KOMOK sy-vline 
WA_E2HRTR4_STR-BETRG sy-vline 
WA_E2HRTR4_STR-WAER5 sy-vline 
WA_E2HRTR4_STR-WAER3 sy-vline 
WA_E2HRTR4_STR-BUKRS sy-vline 
WA_E2HRTR4_STR-GSBER sy-vline 
WA_E2HRTR4_STR-KOKRS sy-vline 
WA_E2HRTR4_STR-KOSTL sy-vline 
WA_E2HRTR4_STR-AUFNR sy-vline 
WA_E2HRTR4_STR-KSTRG sy-vline 
WA_E2HRTR4_STR-POSNR sy-vline 
WA_E2HRTR4_STR-NPLNR sy-vline 
WA_E2HRTR4_STR-VORNR sy-vline 
WA_E2HRTR4_STR-KDAUF sy-vline 
WA_E2HRTR4_STR-KDPOS sy-vline 
WA_E2HRTR4_STR-PAOBJNR sy-vline 
WA_E2HRTR4_STR-PRZNR sy-vline 
WA_E2HRTR4_STR-FISTL sy-vline 
WA_E2HRTR4_STR-FIPOS sy-vline 
WA_E2HRTR4_STR-GEBER sy-vline 
WA_E2HRTR4_STR-EBELN sy-vline 
WA_E2HRTR4_STR-EBELP sy-vline 
WA_E2HRTR4_STR-SGSBR sy-vline 
WA_E2HRTR4_STR-SKOST sy-vline 
WA_E2HRTR4_STR-LSTAR sy-vline 
WA_E2HRTR4_STR-EXBEL sy-vline 
WA_E2HRTR4_STR-MWSKZ sy-vline 
WA_E2HRTR4_STR-OTYPE sy-vline 
WA_E2HRTR4_STR-STELL sy-vline 
WA_E2HRTR4_STR-POHRS sy-vline 
WA_E2HRTR4_STR-DART sy-vline 
WA_E2HRTR4_STR-UDART sy-vline 
WA_E2HRTR4_STR-SGTXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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