ABAP Select data from SAP table RJR3003 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RJR3003 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 RJR3003. 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 RJR3003 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_RJR3003 TYPE STANDARD TABLE OF RJR3003,
      WA_RJR3003 TYPE RJR3003,
      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: <RJR3003> TYPE RJR3003.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RJR3003.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RJR3003
  INTO TABLE IT_RJR3003.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJR3003
*  INTO TABLE @DATA(IT_RJR30032).
*--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_RJR3003 INDEX 1 INTO DATA(WA_RJR30032).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RJR3003 ASSIGNING <RJR3003>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RJR3003>-MANDT = 1.
<RJR3003>-ABLRGLNR = 1.
<RJR3003>-ROUTE = 1.
<RJR3003>-ABLSTELLE = 1.
<RJR3003>-BEZIRK = 1.

ENDLOOP.

LOOP AT IT_RJR3003 INTO WA_RJR3003.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RJR3003-VKORG, sy-vline,
  WA_RJR3003-VTWEG, sy-vline,
  WA_RJR3003-DRERZ, sy-vline,
  WA_RJR3003-PVA, sy-vline,
  WA_RJR3003-BEZUGSTYP, sy-vline,
  WA_RJR3003-LIEFERART, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RJR3003 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_RJR3003 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_RJR3003 INTO WA_RJR3003.


*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 ROUTE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJR3003-ROUTE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJR3003-ROUTE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ABLSTELLE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJR3003-ABLSTELLE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJR3003-ABLSTELLE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BEZIRK
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJR3003-BEZIRK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJR3003-BEZIRK.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DRERZ
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJR3003-DRERZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJR3003-DRERZ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PVA
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJR3003-PVA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJR3003-PVA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field EINHWUNMNG
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RJR3003-EINHWUNMNG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJR3003-EINHWUNMNG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AENDNRBIS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJR3003-AENDNRBIS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJR3003-AENDNRBIS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AENDNRAB
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJR3003-AENDNRAB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJR3003-AENDNRAB.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AENDNRINIT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJR3003-AENDNRINIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJR3003-AENDNRINIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AENDNRAKT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJR3003-AENDNRAKT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJR3003-AENDNRAKT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AENDNRVON
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJR3003-AENDNRVON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJR3003-AENDNRVON.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AENDNRNACH
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJR3003-AENDNRNACH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJR3003-AENDNRNACH.
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_RJR3003_STR, 
MANDT TYPE STRING,
ABLRGLNR TYPE STRING,
ROUTE TYPE STRING,
ABLSTELLE TYPE STRING,
BEZIRK TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
DRERZ TYPE STRING,
PVA TYPE STRING,
BEZUGSTYP TYPE STRING,
LIEFERART TYPE STRING,
DRUERZART TYPE STRING,
GUELTIGAB TYPE STRING,
GUELTIGBIS TYPE STRING,
GBISBEEND TYPE STRING,
LOESCH_KZ TYPE STRING,
WUNSCHMENG TYPE STRING,
EINHWUNMNG TYPE STRING,
XSPITZE TYPE STRING,
AENDNRBIS TYPE STRING,
AENDNRBISD TYPE STRING,
AENDNRAB TYPE STRING,
AENDNRABD TYPE STRING,
AENDNRINIT TYPE STRING,
AENDLFDNRI TYPE STRING,
AENDNRAKT TYPE STRING,
AENDLFDNRA TYPE STRING,
XAENDER TYPE STRING,
XSTRUAKTIV TYPE STRING,
FCCODE TYPE STRING,
DBCODEFREI TYPE STRING,
AENDNRVON TYPE STRING,
AENDLFDNRV TYPE STRING,
AENDNRNACH TYPE STRING,
AENDLFDNRN TYPE STRING,
ERFUSER TYPE STRING,
ERFDATE TYPE STRING,
ERFTIME TYPE STRING,
AENUSER TYPE STRING,
AENDATE TYPE STRING,
AENTIME TYPE STRING,
INDEX_ZUO TYPE STRING,
FOLGENR TYPE STRING,
ABLRGL_NEU TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJR3003_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_RJR3003_STR-MANDT sy-vline 
WA_RJR3003_STR-ABLRGLNR sy-vline 
WA_RJR3003_STR-ROUTE sy-vline 
WA_RJR3003_STR-ABLSTELLE sy-vline 
WA_RJR3003_STR-BEZIRK sy-vline 
WA_RJR3003_STR-VKORG sy-vline 
WA_RJR3003_STR-VTWEG sy-vline 
WA_RJR3003_STR-DRERZ sy-vline 
WA_RJR3003_STR-PVA sy-vline 
WA_RJR3003_STR-BEZUGSTYP sy-vline 
WA_RJR3003_STR-LIEFERART sy-vline 
WA_RJR3003_STR-DRUERZART sy-vline 
WA_RJR3003_STR-GUELTIGAB sy-vline 
WA_RJR3003_STR-GUELTIGBIS sy-vline 
WA_RJR3003_STR-GBISBEEND sy-vline 
WA_RJR3003_STR-LOESCH_KZ sy-vline 
WA_RJR3003_STR-WUNSCHMENG sy-vline 
WA_RJR3003_STR-EINHWUNMNG sy-vline 
WA_RJR3003_STR-XSPITZE sy-vline 
WA_RJR3003_STR-AENDNRBIS sy-vline 
WA_RJR3003_STR-AENDNRBISD sy-vline 
WA_RJR3003_STR-AENDNRAB sy-vline 
WA_RJR3003_STR-AENDNRABD sy-vline 
WA_RJR3003_STR-AENDNRINIT sy-vline 
WA_RJR3003_STR-AENDLFDNRI sy-vline 
WA_RJR3003_STR-AENDNRAKT sy-vline 
WA_RJR3003_STR-AENDLFDNRA sy-vline 
WA_RJR3003_STR-XAENDER sy-vline 
WA_RJR3003_STR-XSTRUAKTIV sy-vline 
WA_RJR3003_STR-FCCODE sy-vline 
WA_RJR3003_STR-DBCODEFREI sy-vline 
WA_RJR3003_STR-AENDNRVON sy-vline 
WA_RJR3003_STR-AENDLFDNRV sy-vline 
WA_RJR3003_STR-AENDNRNACH sy-vline 
WA_RJR3003_STR-AENDLFDNRN sy-vline 
WA_RJR3003_STR-ERFUSER sy-vline 
WA_RJR3003_STR-ERFDATE sy-vline 
WA_RJR3003_STR-ERFTIME sy-vline 
WA_RJR3003_STR-AENUSER sy-vline 
WA_RJR3003_STR-AENDATE sy-vline 
WA_RJR3003_STR-AENTIME sy-vline 
WA_RJR3003_STR-INDEX_ZUO sy-vline 
WA_RJR3003_STR-FOLGENR sy-vline 
WA_RJR3003_STR-ABLRGL_NEU sy-vline      INTO ld_text SEPARATED BY SPACE.

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