ABAP Select data from SAP table ENT4017 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ENT4017 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 ENT4017. 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 ENT4017 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_ENT4017 TYPE STANDARD TABLE OF ENT4017,
      WA_ENT4017 TYPE ENT4017,
      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: <ENT4017> TYPE ENT4017.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ENT4017.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ENT4017
  INTO TABLE IT_ENT4017.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ENT4017
*  INTO TABLE @DATA(IT_ENT40172).
*--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_ENT4017 INDEX 1 INTO DATA(WA_ENT40172).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ENT4017 ASSIGNING <ENT4017>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ENT4017>-MANDT = 1.
<ENT4017>-KOKRS = 1.
<ENT4017>-LMONA = 1.
<ENT4017>-WAERS = 1.
<ENT4017>-KTOPL = 1.

ENDLOOP.

LOOP AT IT_ENT4017 INTO WA_ENT4017.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ENT4017-KOKFI, sy-vline,
  WA_ENT4017-KHINR, sy-vline,
  WA_ENT4017-KOMP1, sy-vline,
  WA_ENT4017-KOMP0, sy-vline,
  WA_ENT4017-BEZEI, sy-vline,
  WA_ENT4017-DPRCT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ENT4017 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_ENT4017 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_ENT4017 INTO WA_ENT4017.


*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 DPRCT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ENT4017-DPRCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT4017-DPRCT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PCLDG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ENT4017-PCLDG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT4017-PCLDG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KSTAR_FIN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ENT4017-KSTAR_FIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT4017-KSTAR_FIN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KSTAR_FID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ENT4017-KSTAR_FID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT4017-KSTAR_FID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_ENT4017-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT4017-GJAHR.
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_ENT4017_STR, 
MANDT TYPE STRING,
KOKRS TYPE STRING,
LMONA TYPE STRING,
WAERS TYPE STRING,
KTOPL TYPE STRING,
KOKFI TYPE STRING,
KHINR TYPE STRING,
KOMP1 TYPE STRING,
KOMP0 TYPE STRING,
BEZEI TYPE STRING,
DPRCT TYPE STRING,
PHINR TYPE STRING,
PCLDG TYPE STRING,
PCBEL TYPE STRING,
XWBUK TYPE STRING,
KSTAR_FIN TYPE STRING,
KSTAR_FID TYPE STRING,
GJAHR TYPE STRING,
KOSTS TYPE STRING,
AUFTR TYPE STRING,
PRJKT TYPE STRING,
ERGBR TYPE STRING,
KKALK TYPE STRING,
HHPLN TYPE STRING,
RABWG TYPE STRING,
OAUFT TYPE STRING,
RMBST TYPE STRING,
MATST TYPE STRING,
RMKAL TYPE STRING,
ANLAA TYPE STRING,
RFKUN TYPE STRING,
RFDIS TYPE STRING,
GLSYS TYPE STRING,
RPPER TYPE STRING,
RVAUF TYPE STRING,
RVFAK TYPE STRING,
RFZAL TYPE STRING,
RFANZ TYPE STRING,
ALLEW TYPE STRING,
RKBUK TYPE STRING,
PCRCH TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ENT4017_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_ENT4017_STR-MANDT sy-vline 
WA_ENT4017_STR-KOKRS sy-vline 
WA_ENT4017_STR-LMONA sy-vline 
WA_ENT4017_STR-WAERS sy-vline 
WA_ENT4017_STR-KTOPL sy-vline 
WA_ENT4017_STR-KOKFI sy-vline 
WA_ENT4017_STR-KHINR sy-vline 
WA_ENT4017_STR-KOMP1 sy-vline 
WA_ENT4017_STR-KOMP0 sy-vline 
WA_ENT4017_STR-BEZEI sy-vline 
WA_ENT4017_STR-DPRCT sy-vline 
WA_ENT4017_STR-PHINR sy-vline 
WA_ENT4017_STR-PCLDG sy-vline 
WA_ENT4017_STR-PCBEL sy-vline 
WA_ENT4017_STR-XWBUK sy-vline 
WA_ENT4017_STR-KSTAR_FIN sy-vline 
WA_ENT4017_STR-KSTAR_FID sy-vline 
WA_ENT4017_STR-GJAHR sy-vline 
WA_ENT4017_STR-KOSTS sy-vline 
WA_ENT4017_STR-AUFTR sy-vline 
WA_ENT4017_STR-PRJKT sy-vline 
WA_ENT4017_STR-ERGBR sy-vline 
WA_ENT4017_STR-KKALK sy-vline 
WA_ENT4017_STR-HHPLN sy-vline 
WA_ENT4017_STR-RABWG sy-vline 
WA_ENT4017_STR-OAUFT sy-vline 
WA_ENT4017_STR-RMBST sy-vline 
WA_ENT4017_STR-MATST sy-vline 
WA_ENT4017_STR-RMKAL sy-vline 
WA_ENT4017_STR-ANLAA sy-vline 
WA_ENT4017_STR-RFKUN sy-vline 
WA_ENT4017_STR-RFDIS sy-vline 
WA_ENT4017_STR-GLSYS sy-vline 
WA_ENT4017_STR-RPPER sy-vline 
WA_ENT4017_STR-RVAUF sy-vline 
WA_ENT4017_STR-RVFAK sy-vline 
WA_ENT4017_STR-RFZAL sy-vline 
WA_ENT4017_STR-RFANZ sy-vline 
WA_ENT4017_STR-ALLEW sy-vline 
WA_ENT4017_STR-RKBUK sy-vline 
WA_ENT4017_STR-PCRCH sy-vline      INTO ld_text SEPARATED BY SPACE.

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