ABAP Select data from SAP table RNJPIR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RNJPIR
*  INTO TABLE @DATA(IT_RNJPIR2).
*--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_RNJPIR INDEX 1 INTO DATA(WA_RNJPIR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RNJPIR>-MANDT = 1.
<RNJPIR>-PATNR = 1.
<RNJPIR>-LFDNR = 1.
<RNJPIR>-KOSTR = 1.
<RNJPIR>-PATKZ = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RNJPIR-MGART, sy-vline,
  WA_RNJPIR-UNTGR, sy-vline,
  WA_RNJPIR-VERAB, sy-vline,
  WA_RNJPIR-VERBI, sy-vline,
  WA_RNJPIR-RANGF, sy-vline,
  WA_RNJPIR-VKVST, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RNJPIR 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_RNJPIR 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_RNJPIR INTO WA_RNJPIR.


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

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

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

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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field CPDKT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RNJPIR-CPDKT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RNJPIR-CPDKT.
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_RNJPIR_STR, 
MANDT TYPE STRING,
PATNR TYPE STRING,
LFDNR TYPE STRING,
KOSTR TYPE STRING,
PATKZ TYPE STRING,
MGART TYPE STRING,
UNTGR TYPE STRING,
VERAB TYPE STRING,
VERBI TYPE STRING,
RANGF TYPE STRING,
VKVST TYPE STRING,
VKVSE TYPE STRING,
VKNRA TYPE STRING,
VKNUM TYPE STRING,
KVDAT TYPE STRING,
VKMAN TYPE STRING,
VCEND TYPE STRING,
PCARD TYPE STRING,
VERNR TYPE STRING,
VERGE TYPE STRING,
VERNN TYPE STRING,
VERVN TYPE STRING,
VERAN TYPE STRING,
VERTI TYPE STRING,
VERNZ TYPE STRING,
VERVW TYPE STRING,
VERGB TYPE STRING,
VERNA TYPE STRING,
VERSV TYPE STRING,
VERVV TYPE STRING,
VERGN TYPE STRING,
VERSN TYPE STRING,
ADNHV TYPE STRING,
ADOHV TYPE STRING,
BERUF TYPE STRING,
AGNUM TYPE STRING,
AGNAM TYPE STRING,
ADNAG TYPE STRING,
ADOAG TYPE STRING,
SZDEB TYPE STRING,
ABREE TYPE STRING,
KZTXT TYPE STRING,
LGTXT TYPE STRING,
ERDAT TYPE STRING,
ERUSR TYPE STRING,
UPDAT TYPE STRING,
UPUSR TYPE STRING,
STORN TYPE STRING,
STUSR TYPE STRING,
STDAT TYPE STRING,
VTRTY TYPE STRING,
VSCOD TYPE STRING,
ADRNR TYPE STRING,
CPDKT TYPE STRING,
VKZML TYPE STRING,
VAL_QUARTER TYPE STRING,
VKTITEL TYPE STRING,
VKVNAM TYPE STRING,
VKNZU TYPE STRING,
VKNNAM TYPE STRING,
VKGBDAT TYPE STRING,
VKSTRAS TYPE STRING,
VKLAND TYPE STRING,
VKPLZ TYPE STRING,
VKORT TYPE STRING,
LNCRD TYPE STRING,
LNCRD_PAT TYPE STRING,
LNCRD_INS TYPE STRING,
VKUNKNOWN_GBDAT TYPE STRING,
VERNR_KVK TYPE STRING,
/ISHFR/ELSASS TYPE STRING,
/ISHFR/BAMO TYPE STRING,
/ISHFR/IPCAT TYPE STRING,
PFINV TYPE STRING,
MCDKZ TYPE STRING,
IV_AU_LOCK TYPE STRING,
IV_AU_LDAT TYPE STRING,
IV_AU_LUSR TYPE STRING,
CURNT TYPE STRING,
PATKENNZ TYPE STRING,
CONKZ TYPE STRING,
LFDNW TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RNJPIR_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_RNJPIR_STR-MANDT sy-vline 
WA_RNJPIR_STR-PATNR sy-vline 
WA_RNJPIR_STR-LFDNR sy-vline 
WA_RNJPIR_STR-KOSTR sy-vline 
WA_RNJPIR_STR-PATKZ sy-vline 
WA_RNJPIR_STR-MGART sy-vline 
WA_RNJPIR_STR-UNTGR sy-vline 
WA_RNJPIR_STR-VERAB sy-vline 
WA_RNJPIR_STR-VERBI sy-vline 
WA_RNJPIR_STR-RANGF sy-vline 
WA_RNJPIR_STR-VKVST sy-vline 
WA_RNJPIR_STR-VKVSE sy-vline 
WA_RNJPIR_STR-VKNRA sy-vline 
WA_RNJPIR_STR-VKNUM sy-vline 
WA_RNJPIR_STR-KVDAT sy-vline 
WA_RNJPIR_STR-VKMAN sy-vline 
WA_RNJPIR_STR-VCEND sy-vline 
WA_RNJPIR_STR-PCARD sy-vline 
WA_RNJPIR_STR-VERNR sy-vline 
WA_RNJPIR_STR-VERGE sy-vline 
WA_RNJPIR_STR-VERNN sy-vline 
WA_RNJPIR_STR-VERVN sy-vline 
WA_RNJPIR_STR-VERAN sy-vline 
WA_RNJPIR_STR-VERTI sy-vline 
WA_RNJPIR_STR-VERNZ sy-vline 
WA_RNJPIR_STR-VERVW sy-vline 
WA_RNJPIR_STR-VERGB sy-vline 
WA_RNJPIR_STR-VERNA sy-vline 
WA_RNJPIR_STR-VERSV sy-vline 
WA_RNJPIR_STR-VERVV sy-vline 
WA_RNJPIR_STR-VERGN sy-vline 
WA_RNJPIR_STR-VERSN sy-vline 
WA_RNJPIR_STR-ADNHV sy-vline 
WA_RNJPIR_STR-ADOHV sy-vline 
WA_RNJPIR_STR-BERUF sy-vline 
WA_RNJPIR_STR-AGNUM sy-vline 
WA_RNJPIR_STR-AGNAM sy-vline 
WA_RNJPIR_STR-ADNAG sy-vline 
WA_RNJPIR_STR-ADOAG sy-vline 
WA_RNJPIR_STR-SZDEB sy-vline 
WA_RNJPIR_STR-ABREE sy-vline 
WA_RNJPIR_STR-KZTXT sy-vline 
WA_RNJPIR_STR-LGTXT sy-vline 
WA_RNJPIR_STR-ERDAT sy-vline 
WA_RNJPIR_STR-ERUSR sy-vline 
WA_RNJPIR_STR-UPDAT sy-vline 
WA_RNJPIR_STR-UPUSR sy-vline 
WA_RNJPIR_STR-STORN sy-vline 
WA_RNJPIR_STR-STUSR sy-vline 
WA_RNJPIR_STR-STDAT sy-vline 
WA_RNJPIR_STR-VTRTY sy-vline 
WA_RNJPIR_STR-VSCOD sy-vline 
WA_RNJPIR_STR-ADRNR sy-vline 
WA_RNJPIR_STR-CPDKT sy-vline 
WA_RNJPIR_STR-VKZML sy-vline 
WA_RNJPIR_STR-VAL_QUARTER sy-vline 
WA_RNJPIR_STR-VKTITEL sy-vline 
WA_RNJPIR_STR-VKVNAM sy-vline 
WA_RNJPIR_STR-VKNZU sy-vline 
WA_RNJPIR_STR-VKNNAM sy-vline 
WA_RNJPIR_STR-VKGBDAT sy-vline 
WA_RNJPIR_STR-VKSTRAS sy-vline 
WA_RNJPIR_STR-VKLAND sy-vline 
WA_RNJPIR_STR-VKPLZ sy-vline 
WA_RNJPIR_STR-VKORT sy-vline 
WA_RNJPIR_STR-LNCRD sy-vline 
WA_RNJPIR_STR-LNCRD_PAT sy-vline 
WA_RNJPIR_STR-LNCRD_INS sy-vline 
WA_RNJPIR_STR-VKUNKNOWN_GBDAT sy-vline 
WA_RNJPIR_STR-VERNR_KVK sy-vline 
WA_RNJPIR_STR-/ISHFR/ELSASS sy-vline 
WA_RNJPIR_STR-/ISHFR/BAMO sy-vline 
WA_RNJPIR_STR-/ISHFR/IPCAT sy-vline 
WA_RNJPIR_STR-PFINV sy-vline 
WA_RNJPIR_STR-MCDKZ sy-vline 
WA_RNJPIR_STR-IV_AU_LOCK sy-vline 
WA_RNJPIR_STR-IV_AU_LDAT sy-vline 
WA_RNJPIR_STR-IV_AU_LUSR sy-vline 
WA_RNJPIR_STR-CURNT sy-vline 
WA_RNJPIR_STR-PATKENNZ sy-vline 
WA_RNJPIR_STR-CONKZ sy-vline 
WA_RNJPIR_STR-LFDNW sy-vline      INTO ld_text SEPARATED BY SPACE.

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