ABAP Select data from SAP table P39_INE into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P39_INE 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 P39_INE. 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 P39_INE 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_P39_INE TYPE STANDARD TABLE OF P39_INE,
      WA_P39_INE TYPE P39_INE,
      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: <P39_INE> TYPE P39_INE.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P39_INE.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P39_INE
  INTO TABLE IT_P39_INE.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P39_INE
*  INTO TABLE @DATA(IT_P39_INE2).
*--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_P39_INE INDEX 1 INTO DATA(WA_P39_INE2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P39_INE ASSIGNING <P39_INE>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P39_INE>-IDGPO = 1.
<P39_INE>-TXGPO = 1.
<P39_INE>-HRWRK = 1.
<P39_INE>-NTGPO = 1.
<P39_INE>-SDBSE = 1.

ENDLOOP.

LOOP AT IT_P39_INE INTO WA_P39_INE.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P39_INE-SDTMP, sy-vline,
  WA_P39_INE-SDFNC, sy-vline,
  WA_P39_INE-INCEN, sy-vline,
  WA_P39_INE-PYTRB, sy-vline,
  WA_P39_INE-PYHEX, sy-vline,
  WA_P39_INE-PYCMS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P39_INE 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_P39_INE 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_P39_INE INTO WA_P39_INE.


*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_P39_INE_STR, 
IDGPO TYPE STRING,
TXGPO TYPE STRING,
HRWRK TYPE STRING,
NTGPO TYPE STRING,
SDBSE TYPE STRING,
SDTMP TYPE STRING,
SDFNC TYPE STRING,
INCEN TYPE STRING,
PYTRB TYPE STRING,
PYHEX TYPE STRING,
PYCMS TYPE STRING,
REEMB TYPE STRING,
PYNMS TYPE STRING,
PYESP TYPE STRING,
MTASF TYPE STRING,
PYDSS TYPE STRING,
APPTR TYPE STRING,
GSTOS TYPE STRING,
INDEM TYPE STRING,
CSTOS TYPE STRING,
TOT01 TYPE STRING,
LEYSS TYPE STRING,
HNPAY TYPE STRING,
HEPAY TYPE STRING,
TOT02 TYPE STRING,
WAERS TYPE STRING,
TRAIN TYPE STRING,
INCON TYPE STRING,
CTHRS TYPE STRING,
NDAYS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P39_INE_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_P39_INE_STR-IDGPO sy-vline 
WA_P39_INE_STR-TXGPO sy-vline 
WA_P39_INE_STR-HRWRK sy-vline 
WA_P39_INE_STR-NTGPO sy-vline 
WA_P39_INE_STR-SDBSE sy-vline 
WA_P39_INE_STR-SDTMP sy-vline 
WA_P39_INE_STR-SDFNC sy-vline 
WA_P39_INE_STR-INCEN sy-vline 
WA_P39_INE_STR-PYTRB sy-vline 
WA_P39_INE_STR-PYHEX sy-vline 
WA_P39_INE_STR-PYCMS sy-vline 
WA_P39_INE_STR-REEMB sy-vline 
WA_P39_INE_STR-PYNMS sy-vline 
WA_P39_INE_STR-PYESP sy-vline 
WA_P39_INE_STR-MTASF sy-vline 
WA_P39_INE_STR-PYDSS sy-vline 
WA_P39_INE_STR-APPTR sy-vline 
WA_P39_INE_STR-GSTOS sy-vline 
WA_P39_INE_STR-INDEM sy-vline 
WA_P39_INE_STR-CSTOS sy-vline 
WA_P39_INE_STR-TOT01 sy-vline 
WA_P39_INE_STR-LEYSS sy-vline 
WA_P39_INE_STR-HNPAY sy-vline 
WA_P39_INE_STR-HEPAY sy-vline 
WA_P39_INE_STR-TOT02 sy-vline 
WA_P39_INE_STR-WAERS sy-vline 
WA_P39_INE_STR-TRAIN sy-vline 
WA_P39_INE_STR-INCON sy-vline 
WA_P39_INE_STR-CTHRS sy-vline 
WA_P39_INE_STR-NDAYS sy-vline      INTO ld_text SEPARATED BY SPACE.

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