ABAP Select data from SAP table RJKAPPR into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RJKAPPR 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 RJKAPPR. 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 RJKAPPR 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_RJKAPPR TYPE STANDARD TABLE OF RJKAPPR,
      WA_RJKAPPR TYPE RJKAPPR,
      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: <RJKAPPR> TYPE RJKAPPR.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJKAPPR
*  INTO TABLE @DATA(IT_RJKAPPR2).
*--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_RJKAPPR INDEX 1 INTO DATA(WA_RJKAPPR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RJKAPPR>-MANDT = 1.
<RJKAPPR>-VBELN = 1.
<RJKAPPR>-POSNR = 1.
<RJKAPPR>-DRERZTRAEG = 1.
<RJKAPPR>-PVATRAEG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RJKAPPR-ERSCHDATTR, sy-vline,
  WA_RJKAPPR-LIEFARTTR, sy-vline,
  WA_RJKAPPR-KDGRP, sy-vline,
  WA_RJKAPPR-BEZIRK_BLG, sy-vline,
  WA_RJKAPPR-BEZIRK_VRT, sy-vline,
  WA_RJKAPPR-BEZRUNDE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RJKAPPR 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_RJKAPPR 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_RJKAPPR INTO WA_RJKAPPR.


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

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

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

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

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

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

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

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

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

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

*Conversion exit CUNIT, internal->external for field MEINDISP
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RJKAPPR-MEINDISP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJKAPPR-MEINDISP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINAB
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RJKAPPR-MEINAB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJKAPPR-MEINAB.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field BEZRND_RST
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJKAPPR-BEZRND_RST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJKAPPR-BEZRND_RST.
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_RJKAPPR_STR, 
MANDT TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
DRERZTRAEG TYPE STRING,
PVATRAEG TYPE STRING,
ERSCHDATTR TYPE STRING,
LIEFARTTR TYPE STRING,
KDGRP TYPE STRING,
BEZIRK_BLG TYPE STRING,
BEZIRK_VRT TYPE STRING,
BEZRUNDE TYPE STRING,
GEOEIN TYPE STRING,
DISPODAT TYPE STRING,
VRTLDAT TYPE STRING,
BLGMENGE TYPE STRING,
VRTMENGE TYPE STRING,
XRESTHSHLT TYPE STRING,
ZUSTMENGE TYPE STRING,
BEZIRK_ZST TYPE STRING,
LIEFBARNR TYPE STRING,
BEZRND_LIF TYPE STRING,
XUNVLIEFER TYPE STRING,
VBELN_VL TYPE STRING,
POSNR_VL TYPE STRING,
ERFUSER TYPE STRING,
ERFDATE TYPE STRING,
ERFTIME TYPE STRING,
AENUSER TYPE STRING,
AENDATE TYPE STRING,
AENTIME TYPE STRING,
XBREAKDOWN TYPE STRING,
MARK TYPE STRING,
DISPMENGE TYPE STRING,
MEINDISP TYPE STRING,
PROSPOTNTL TYPE STRING,
MEINAB TYPE STRING,
VAUSGBTRAE TYPE STRING,
VA_DSPTRAE TYPE STRING,
BZKURZTEXT TYPE STRING,
XGELIEFERT TYPE STRING,
XBEIGELEGT TYPE STRING,
BEZRND_RST TYPE STRING,
DBCODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJKAPPR_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_RJKAPPR_STR-MANDT sy-vline 
WA_RJKAPPR_STR-VBELN sy-vline 
WA_RJKAPPR_STR-POSNR sy-vline 
WA_RJKAPPR_STR-DRERZTRAEG sy-vline 
WA_RJKAPPR_STR-PVATRAEG sy-vline 
WA_RJKAPPR_STR-ERSCHDATTR sy-vline 
WA_RJKAPPR_STR-LIEFARTTR sy-vline 
WA_RJKAPPR_STR-KDGRP sy-vline 
WA_RJKAPPR_STR-BEZIRK_BLG sy-vline 
WA_RJKAPPR_STR-BEZIRK_VRT sy-vline 
WA_RJKAPPR_STR-BEZRUNDE sy-vline 
WA_RJKAPPR_STR-GEOEIN sy-vline 
WA_RJKAPPR_STR-DISPODAT sy-vline 
WA_RJKAPPR_STR-VRTLDAT sy-vline 
WA_RJKAPPR_STR-BLGMENGE sy-vline 
WA_RJKAPPR_STR-VRTMENGE sy-vline 
WA_RJKAPPR_STR-XRESTHSHLT sy-vline 
WA_RJKAPPR_STR-ZUSTMENGE sy-vline 
WA_RJKAPPR_STR-BEZIRK_ZST sy-vline 
WA_RJKAPPR_STR-LIEFBARNR sy-vline 
WA_RJKAPPR_STR-BEZRND_LIF sy-vline 
WA_RJKAPPR_STR-XUNVLIEFER sy-vline 
WA_RJKAPPR_STR-VBELN_VL sy-vline 
WA_RJKAPPR_STR-POSNR_VL sy-vline 
WA_RJKAPPR_STR-ERFUSER sy-vline 
WA_RJKAPPR_STR-ERFDATE sy-vline 
WA_RJKAPPR_STR-ERFTIME sy-vline 
WA_RJKAPPR_STR-AENUSER sy-vline 
WA_RJKAPPR_STR-AENDATE sy-vline 
WA_RJKAPPR_STR-AENTIME sy-vline 
WA_RJKAPPR_STR-XBREAKDOWN sy-vline 
WA_RJKAPPR_STR-MARK sy-vline 
WA_RJKAPPR_STR-DISPMENGE sy-vline 
WA_RJKAPPR_STR-MEINDISP sy-vline 
WA_RJKAPPR_STR-PROSPOTNTL sy-vline 
WA_RJKAPPR_STR-MEINAB sy-vline 
WA_RJKAPPR_STR-VAUSGBTRAE sy-vline 
WA_RJKAPPR_STR-VA_DSPTRAE sy-vline 
WA_RJKAPPR_STR-BZKURZTEXT sy-vline 
WA_RJKAPPR_STR-XGELIEFERT sy-vline 
WA_RJKAPPR_STR-XBEIGELEGT sy-vline 
WA_RJKAPPR_STR-BEZRND_RST sy-vline 
WA_RJKAPPR_STR-DBCODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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