ABAP Select data from SAP table ENT2127 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ENT2127 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 ENT2127. 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 ENT2127 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_ENT2127 TYPE STANDARD TABLE OF ENT2127,
      WA_ENT2127 TYPE ENT2127,
      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: <ENT2127> TYPE ENT2127.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ENT2127.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ENT2127
  INTO TABLE IT_ENT2127.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ENT2127
*  INTO TABLE @DATA(IT_ENT21272).
*--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_ENT2127 INDEX 1 INTO DATA(WA_ENT21272).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ENT2127 ASSIGNING <ENT2127>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ENT2127>-MANDT = 1.
<ENT2127>-BUKRS = 1.
<ENT2127>-BELNR = 1.
<ENT2127>-GJAHR = 1.
<ENT2127>-BUZEI = 1.

ENDLOOP.

LOOP AT IT_ENT2127 INTO WA_ENT2127.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ENT2127-BUZID, sy-vline,
  WA_ENT2127-BSCHL, sy-vline,
  WA_ENT2127-KOART, sy-vline,
  WA_ENT2127-SHKZG, sy-vline,
  WA_ENT2127-GSBER, sy-vline,
  WA_ENT2127-PARGB, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ENT2127 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_ENT2127 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_ENT2127 INTO WA_ENT2127.


*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 BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ENT2127-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT2127-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_ENT2127-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT2127-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field DMBTR
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_ENT2127-DMBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT2127-DMBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field WRBTR
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_ENT2127-WRBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT2127-WRBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field KZBTR
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_ENT2127-KZBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT2127-KZBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field PSWBT
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_ENT2127-PSWBT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT2127-PSWBT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field HWBAS
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_ENT2127-HWBAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT2127-HWBAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field FWBAS
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_ENT2127-FWBAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT2127-FWBAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VBUND
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ENT2127-VBUND
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT2127-VBUND.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ALTKT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ENT2127-ALTKT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT2127-ALTKT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field HKONT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ENT2127-HKONT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT2127-HKONT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit FMCIS, internal->external for field FIPOS
CALL FUNCTION 'CONVERSION_EXIT_FMCIS_OUTPUT'
  EXPORTING
    input =                      WA_ENT2127-FIPOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT2127-FIPOS.
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_ENT2127_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
BUZEI TYPE STRING,
BUZID TYPE STRING,
BSCHL TYPE STRING,
KOART TYPE STRING,
SHKZG TYPE STRING,
GSBER TYPE STRING,
PARGB TYPE STRING,
MWSKZ TYPE STRING,
DMBTR TYPE STRING,
WRBTR TYPE STRING,
KZBTR TYPE STRING,
PSWBT TYPE STRING,
PSWSL TYPE STRING,
HWBAS TYPE STRING,
FWBAS TYPE STRING,
MWART TYPE STRING,
TXGRP TYPE STRING,
KTOSL TYPE STRING,
ZUONR TYPE STRING,
SGTXT TYPE STRING,
VBUND TYPE STRING,
ALTKT TYPE STRING,
VORGN TYPE STRING,
ETEN2 TYPE STRING,
XHRES TYPE STRING,
XKRES TYPE STRING,
XPANZ TYPE STRING,
XAUTO TYPE STRING,
XNCOP TYPE STRING,
HKONT TYPE STRING,
BUSTW TYPE STRING,
FIPOS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ENT2127_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_ENT2127_STR-MANDT sy-vline 
WA_ENT2127_STR-BUKRS sy-vline 
WA_ENT2127_STR-BELNR sy-vline 
WA_ENT2127_STR-GJAHR sy-vline 
WA_ENT2127_STR-BUZEI sy-vline 
WA_ENT2127_STR-BUZID sy-vline 
WA_ENT2127_STR-BSCHL sy-vline 
WA_ENT2127_STR-KOART sy-vline 
WA_ENT2127_STR-SHKZG sy-vline 
WA_ENT2127_STR-GSBER sy-vline 
WA_ENT2127_STR-PARGB sy-vline 
WA_ENT2127_STR-MWSKZ sy-vline 
WA_ENT2127_STR-DMBTR sy-vline 
WA_ENT2127_STR-WRBTR sy-vline 
WA_ENT2127_STR-KZBTR sy-vline 
WA_ENT2127_STR-PSWBT sy-vline 
WA_ENT2127_STR-PSWSL sy-vline 
WA_ENT2127_STR-HWBAS sy-vline 
WA_ENT2127_STR-FWBAS sy-vline 
WA_ENT2127_STR-MWART sy-vline 
WA_ENT2127_STR-TXGRP sy-vline 
WA_ENT2127_STR-KTOSL sy-vline 
WA_ENT2127_STR-ZUONR sy-vline 
WA_ENT2127_STR-SGTXT sy-vline 
WA_ENT2127_STR-VBUND sy-vline 
WA_ENT2127_STR-ALTKT sy-vline 
WA_ENT2127_STR-VORGN sy-vline 
WA_ENT2127_STR-ETEN2 sy-vline 
WA_ENT2127_STR-XHRES sy-vline 
WA_ENT2127_STR-XKRES sy-vline 
WA_ENT2127_STR-XPANZ sy-vline 
WA_ENT2127_STR-XAUTO sy-vline 
WA_ENT2127_STR-XNCOP sy-vline 
WA_ENT2127_STR-HKONT sy-vline 
WA_ENT2127_STR-BUSTW sy-vline 
WA_ENT2127_STR-FIPOS sy-vline      INTO ld_text SEPARATED BY SPACE.

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