ABAP Select data from SAP table RN2LABOR_VALUE into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RN2LABOR_VALUE 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 RN2LABOR_VALUE. 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 RN2LABOR_VALUE 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_RN2LABOR_VALUE TYPE STANDARD TABLE OF RN2LABOR_VALUE,
      WA_RN2LABOR_VALUE TYPE RN2LABOR_VALUE,
      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: <RN2LABOR_VALUE> TYPE RN2LABOR_VALUE.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RN2LABOR_VALUE.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RN2LABOR_VALUE
  INTO TABLE IT_RN2LABOR_VALUE.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RN2LABOR_VALUE
*  INTO TABLE @DATA(IT_RN2LABOR_VALUE2).
*--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_RN2LABOR_VALUE INDEX 1 INTO DATA(WA_RN2LABOR_VALUE2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RN2LABOR_VALUE ASSIGNING <RN2LABOR_VALUE>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RN2LABOR_VALUE>-MANDT = 1.
<RN2LABOR_VALUE>-DOKAR = 1.
<RN2LABOR_VALUE>-DOKNR = 1.
<RN2LABOR_VALUE>-DOKVR = 1.
<RN2LABOR_VALUE>-DOKTL = 1.

ENDLOOP.

LOOP AT IT_RN2LABOR_VALUE INTO WA_RN2LABOR_VALUE.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RN2LABOR_VALUE-MUSEQ, sy-vline,
  WA_RN2LABOR_VALUE-N2RESULTID, sy-vline,
  WA_RN2LABOR_VALUE-N2KATID, sy-vline,
  WA_RN2LABOR_VALUE-N2LEISTID, sy-vline,
  WA_RN2LABOR_VALUE-N2KATTEXT, sy-vline,
  WA_RN2LABOR_VALUE-N2VALUETYP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RN2LABOR_VALUE 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_RN2LABOR_VALUE 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_RN2LABOR_VALUE INTO WA_RN2LABOR_VALUE.


*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 DOKNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN2LABOR_VALUE-DOKNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2LABOR_VALUE-DOKNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PATNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN2LABOR_VALUE-PATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2LABOR_VALUE-PATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FALNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN2LABOR_VALUE-FALNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2LABOR_VALUE-FALNR.
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_RN2LABOR_VALUE_STR, 
MANDT TYPE STRING,
DOKAR TYPE STRING,
DOKNR TYPE STRING,
DOKVR TYPE STRING,
DOKTL TYPE STRING,
MUSEQ TYPE STRING,
N2RESULTID TYPE STRING,
N2KATID TYPE STRING,
N2LEISTID TYPE STRING,
N2KATTEXT TYPE STRING,
N2VALUETYP TYPE STRING,
N2VALUE TYPE STRING,
N2VALTEXT TYPE STRING,
N2UNIT TYPE STRING,
N2STATUS TYPE STRING,
N2TEXT TYPE STRING,
N2NORMAL TYPE STRING,
N2ABNORMAL TYPE STRING,
N2VSTATUS TYPE STRING,
N2DATE TYPE STRING,
N2TIME TYPE STRING,
N2SUBID TYPE STRING,
N2PRIORITY TYPE STRING,
GROUPID TYPE STRING,
N2LSTGROUP TYPE STRING,
GRPOS TYPE STRING,
LSTPOS TYPE STRING,
CHAR_MARK TYPE STRING,
TEXTB TYPE STRING,
PATNR TYPE STRING,
FALNR TYPE STRING,
N2LADATUM TYPE STRING,
N2LATIME TYPE STRING,
N2LAAUFNUM TYPE STRING,
N2NORMAL_DIS TYPE STRING,
N2UNIT_DIS TYPE STRING,
N2KATTEXT_DIS TYPE STRING,
COMMENTARY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RN2LABOR_VALUE_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_RN2LABOR_VALUE_STR-MANDT sy-vline 
WA_RN2LABOR_VALUE_STR-DOKAR sy-vline 
WA_RN2LABOR_VALUE_STR-DOKNR sy-vline 
WA_RN2LABOR_VALUE_STR-DOKVR sy-vline 
WA_RN2LABOR_VALUE_STR-DOKTL sy-vline 
WA_RN2LABOR_VALUE_STR-MUSEQ sy-vline 
WA_RN2LABOR_VALUE_STR-N2RESULTID sy-vline 
WA_RN2LABOR_VALUE_STR-N2KATID sy-vline 
WA_RN2LABOR_VALUE_STR-N2LEISTID sy-vline 
WA_RN2LABOR_VALUE_STR-N2KATTEXT sy-vline 
WA_RN2LABOR_VALUE_STR-N2VALUETYP sy-vline 
WA_RN2LABOR_VALUE_STR-N2VALUE sy-vline 
WA_RN2LABOR_VALUE_STR-N2VALTEXT sy-vline 
WA_RN2LABOR_VALUE_STR-N2UNIT sy-vline 
WA_RN2LABOR_VALUE_STR-N2STATUS sy-vline 
WA_RN2LABOR_VALUE_STR-N2TEXT sy-vline 
WA_RN2LABOR_VALUE_STR-N2NORMAL sy-vline 
WA_RN2LABOR_VALUE_STR-N2ABNORMAL sy-vline 
WA_RN2LABOR_VALUE_STR-N2VSTATUS sy-vline 
WA_RN2LABOR_VALUE_STR-N2DATE sy-vline 
WA_RN2LABOR_VALUE_STR-N2TIME sy-vline 
WA_RN2LABOR_VALUE_STR-N2SUBID sy-vline 
WA_RN2LABOR_VALUE_STR-N2PRIORITY sy-vline 
WA_RN2LABOR_VALUE_STR-GROUPID sy-vline 
WA_RN2LABOR_VALUE_STR-N2LSTGROUP sy-vline 
WA_RN2LABOR_VALUE_STR-GRPOS sy-vline 
WA_RN2LABOR_VALUE_STR-LSTPOS sy-vline 
WA_RN2LABOR_VALUE_STR-CHAR_MARK sy-vline 
WA_RN2LABOR_VALUE_STR-TEXTB sy-vline 
WA_RN2LABOR_VALUE_STR-PATNR sy-vline 
WA_RN2LABOR_VALUE_STR-FALNR sy-vline 
WA_RN2LABOR_VALUE_STR-N2LADATUM sy-vline 
WA_RN2LABOR_VALUE_STR-N2LATIME sy-vline 
WA_RN2LABOR_VALUE_STR-N2LAAUFNUM sy-vline 
WA_RN2LABOR_VALUE_STR-N2NORMAL_DIS sy-vline 
WA_RN2LABOR_VALUE_STR-N2UNIT_DIS sy-vline 
WA_RN2LABOR_VALUE_STR-N2KATTEXT_DIS sy-vline 
WA_RN2LABOR_VALUE_STR-COMMENTARY sy-vline      INTO ld_text SEPARATED BY SPACE.

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