ABAP Select data from SAP table /NAKISA/HR_S_P_OPAR_FIELDS into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /NAKISA/HR_S_P_OPAR_FIELDS 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 /NAKISA/HR_S_P_OPAR_FIELDS. 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 /NAKISA/HR_S_P_OPAR_FIELDS 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_/NAKISA/HR_S_P_OPAR_FIELDS TYPE STANDARD TABLE OF /NAKISA/HR_S_P_OPAR_FIELDS,
      WA_/NAKISA/HR_S_P_OPAR_FIELDS TYPE /NAKISA/HR_S_P_OPAR_FIELDS,
      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: </NAKISA/HR_S_P_OPAR_FIELDS> TYPE /NAKISA/HR_S_P_OPAR_FIELDS.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /NAKISA/HR_S_P_OPAR_FIELDS
  INTO TABLE IT_/NAKISA/HR_S_P_OPAR_FIELDS.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /NAKISA/HR_S_P_OPAR_FIELDS
*  INTO TABLE @DATA(IT_/NAKISA/HR_S_P_OPAR_FIELDS2).
*--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_/NAKISA/HR_S_P_OPAR_FIELDS INDEX 1 INTO DATA(WA_/NAKISA/HR_S_P_OPAR_FIELDS2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/NAKISA/HR_S_P_OPAR_FIELDS ASSIGNING </NAKISA/HR_S_P_OPAR_FIELDS>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</NAKISA/HR_S_P_OPAR_FIELDS>-SHORT = 1.
</NAKISA/HR_S_P_OPAR_FIELDS>-STEXT = 1.
</NAKISA/HR_S_P_OPAR_FIELDS>-GDATE = 1.
</NAKISA/HR_S_P_OPAR_FIELDS>-MANDT = 1.
</NAKISA/HR_S_P_OPAR_FIELDS>-PLVAR = 1.

ENDLOOP.

LOOP AT IT_/NAKISA/HR_S_P_OPAR_FIELDS INTO WA_/NAKISA/HR_S_P_OPAR_FIELDS.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/NAKISA/HR_S_P_OPAR_FIELDS-OTYPE, sy-vline,
  WA_/NAKISA/HR_S_P_OPAR_FIELDS-OBJID, sy-vline,
  WA_/NAKISA/HR_S_P_OPAR_FIELDS-INFTY, sy-vline,
  WA_/NAKISA/HR_S_P_OPAR_FIELDS-SUBTY, sy-vline,
  WA_/NAKISA/HR_S_P_OPAR_FIELDS-ISTAT, sy-vline,
  WA_/NAKISA/HR_S_P_OPAR_FIELDS-PRIOX, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/NAKISA/HR_S_P_OPAR_FIELDS 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_/NAKISA/HR_S_P_OPAR_FIELDS 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_/NAKISA/HR_S_P_OPAR_FIELDS INTO WA_/NAKISA/HR_S_P_OPAR_FIELDS.


*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 ISOLA, internal->external for field LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_/NAKISA/HR_S_P_OPAR_FIELDS-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/NAKISA/HR_S_P_OPAR_FIELDS-LANGU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field SOBID_TLANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_/NAKISA/HR_S_P_OPAR_FIELDS-SOBID_TLANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/NAKISA/HR_S_P_OPAR_FIELDS-SOBID_TLANGU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ADRNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/NAKISA/HR_S_P_OPAR_FIELDS-ADRNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/NAKISA/HR_S_P_OPAR_FIELDS-ADRNR.
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_/NAKISA/HR_S_P_OPAR_FIELDS_STR, 
SHORT TYPE STRING,
STEXT TYPE STRING,
GDATE TYPE STRING,
MANDT TYPE STRING,
PLVAR TYPE STRING,
OTYPE TYPE STRING,
OBJID TYPE STRING,
INFTY TYPE STRING,
SUBTY TYPE STRING,
ISTAT TYPE STRING,
PRIOX TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
LANGU TYPE STRING,
FILLER TYPE STRING,
SEQNR TYPE STRING,
SCLAS TYPE STRING,
SOBID TYPE STRING,
PROZT TYPE STRING,
SOBID_SHORT TYPE STRING,
SOBID_STEXT TYPE STRING,
SOBID_TLANGU TYPE STRING,
1002SUBTY TYPE STRING,
TLINE TYPE STRING,
PRZSA TYPE STRING,
STABS TYPE STRING,
ABTEL TYPE STRING,
VACAN TYPE STRING,
STATUS TYPE STRING,
RESRF TYPE STRING,
RESPO TYPE STRING,
BUKRS TYPE STRING,
GSBER TYPE STRING,
WERKS TYPE STRING,
PERSA TYPE STRING,
BTRTL TYPE STRING,
KOKRS TYPE STRING,
1011SUBTY TYPE STRING,
DYAVG TYPE STRING,
WKAVG TYPE STRING,
MOAVG TYPE STRING,
YRAVG TYPE STRING,
DEFPS TYPE STRING,
FACTOR TYPE STRING,
PERSG TYPE STRING,
PERSK TYPE STRING,
REDUN TYPE STRING,
1028SUBTY TYPE STRING,
CNAME TYPE STRING,
STRAS TYPE STRING,
ORT01 TYPE STRING,
PSTLZ TYPE STRING,
LAND1 TYPE STRING,
TELNR TYPE STRING,
FAXNR TYPE STRING,
ENTKM TYPE STRING,
BUILD TYPE STRING,
ROOM1 TYPE STRING,
ADRNR TYPE STRING,
REGIO TYPE STRING,
STRS2 TYPE STRING,
HAUSN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/NAKISA/HR_S_P_OPAR_FIELDS_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_/NAKISA/HR_S_P_OPAR_FIELDS_STR-SHORT sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-STEXT sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-GDATE sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-MANDT sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-PLVAR sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-OTYPE sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-OBJID sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-INFTY sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-SUBTY sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-ISTAT sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-PRIOX sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-BEGDA sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-ENDDA sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-LANGU sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-FILLER sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-SEQNR sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-SCLAS sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-SOBID sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-PROZT sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-SOBID_SHORT sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-SOBID_STEXT sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-SOBID_TLANGU sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-1002SUBTY sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-TLINE sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-PRZSA sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-STABS sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-ABTEL sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-VACAN sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-STATUS sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-RESRF sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-RESPO sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-BUKRS sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-GSBER sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-WERKS sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-PERSA sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-BTRTL sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-KOKRS sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-1011SUBTY sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-DYAVG sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-WKAVG sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-MOAVG sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-YRAVG sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-DEFPS sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-FACTOR sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-PERSG sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-PERSK sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-REDUN sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-1028SUBTY sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-CNAME sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-STRAS sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-ORT01 sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-PSTLZ sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-LAND1 sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-TELNR sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-FAXNR sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-ENTKM sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-BUILD sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-ROOM1 sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-ADRNR sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-REGIO sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-STRS2 sy-vline 
WA_/NAKISA/HR_S_P_OPAR_FIELDS_STR-HAUSN sy-vline      INTO ld_text SEPARATED BY SPACE.

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