ABAP Select data from SAP table J_3RNDSINV into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_3RNDSINV 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 J_3RNDSINV. 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 J_3RNDSINV 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_J_3RNDSINV TYPE STANDARD TABLE OF J_3RNDSINV,
      WA_J_3RNDSINV TYPE J_3RNDSINV,
      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: <J_3RNDSINV> TYPE J_3RNDSINV.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_3RNDSINV.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_3RNDSINV
  INTO TABLE IT_J_3RNDSINV.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_3RNDSINV
*  INTO TABLE @DATA(IT_J_3RNDSINV2).
*--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_J_3RNDSINV INDEX 1 INTO DATA(WA_J_3RNDSINV2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_3RNDSINV ASSIGNING <J_3RNDSINV>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_3RNDSINV>-MANDT = 1.
<J_3RNDSINV>-BUKRSP = 1.
<J_3RNDSINV>-BELNRP = 1.
<J_3RNDSINV>-BUZEIP = 1.
<J_3RNDSINV>-GJAHRP = 1.

ENDLOOP.

LOOP AT IT_J_3RNDSINV INTO WA_J_3RNDSINV.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_3RNDSINV-BUKRSF, sy-vline,
  WA_J_3RNDSINV-BELNRF, sy-vline,
  WA_J_3RNDSINV-BUZEIF, sy-vline,
  WA_J_3RNDSINV-GJAHRF, sy-vline,
  WA_J_3RNDSINV-MATNR, sy-vline,
  WA_J_3RNDSINV-CHARG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_3RNDSINV 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_J_3RNDSINV 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_J_3RNDSINV INTO WA_J_3RNDSINV.


*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 BELNRP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RNDSINV-BELNRP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RNDSINV-BELNRP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHRP
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_3RNDSINV-GJAHRP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RNDSINV-GJAHRP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNRF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RNDSINV-BELNRF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RNDSINV-BELNRF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHRF
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_3RNDSINV-GJAHRF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RNDSINV-GJAHRF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_J_3RNDSINV-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RNDSINV-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field POSID
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_J_3RNDSINV-POSID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RNDSINV-POSID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RNDSINV-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RNDSINV-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field NPLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RNDSINV-NPLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RNDSINV-NPLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field NKS_ANLN1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RNDSINV-NKS_ANLN1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RNDSINV-NKS_ANLN1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field NKS_ANLN2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RNDSINV-NKS_ANLN2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RNDSINV-NKS_ANLN2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KSTAR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RNDSINV-KSTAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RNDSINV-KSTAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_3RNDSINV-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RNDSINV-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field DMBTRP
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_J_3RNDSINV-DMBTRP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RNDSINV-DMBTRP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field NDSPOSP
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_J_3RNDSINV-NDSPOSP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RNDSINV-NDSPOSP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FIRST_BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RNDSINV-FIRST_BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RNDSINV-FIRST_BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field DMBTRF
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_J_3RNDSINV-DMBTRF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RNDSINV-DMBTRF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field NDSPOSF
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_J_3RNDSINV-NDSPOSF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RNDSINV-NDSPOSF.
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_J_3RNDSINV_STR, 
MANDT TYPE STRING,
BUKRSP TYPE STRING,
BELNRP TYPE STRING,
BUZEIP TYPE STRING,
GJAHRP TYPE STRING,
BUKRSF TYPE STRING,
BELNRF TYPE STRING,
BUZEIF TYPE STRING,
GJAHRF TYPE STRING,
MATNR TYPE STRING,
CHARG TYPE STRING,
OBJNR TYPE STRING,
DOBJNR TYPE STRING,
POSID TYPE STRING,
AUFNR TYPE STRING,
NPLNR TYPE STRING,
NKS_ANLN1 TYPE STRING,
NKS_ANLN2 TYPE STRING,
KOKRSP TYPE STRING,
KSTAR TYPE STRING,
MEINS TYPE STRING,
OBART TYPE STRING,
CODEOBJ TYPE STRING,
MONATP TYPE STRING,
XBLNRP TYPE STRING,
BUDATP TYPE STRING,
DMBTRP TYPE STRING,
MENGEP TYPE STRING,
NDSPOSP TYPE STRING,
WAERS TYPE STRING,
MWSKZP TYPE STRING,
FIRST_BELNR TYPE STRING,
MONATF TYPE STRING,
BUDATF TYPE STRING,
DMBTRF TYPE STRING,
MENGEF TYPE STRING,
NDSPOSF TYPE STRING,
BWARTF TYPE STRING,
GRUNDF TYPE STRING,
POSEND TYPE STRING,
ERRCODE TYPE STRING,
RUNDATE TYPE STRING,
RUNID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_3RNDSINV_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_J_3RNDSINV_STR-MANDT sy-vline 
WA_J_3RNDSINV_STR-BUKRSP sy-vline 
WA_J_3RNDSINV_STR-BELNRP sy-vline 
WA_J_3RNDSINV_STR-BUZEIP sy-vline 
WA_J_3RNDSINV_STR-GJAHRP sy-vline 
WA_J_3RNDSINV_STR-BUKRSF sy-vline 
WA_J_3RNDSINV_STR-BELNRF sy-vline 
WA_J_3RNDSINV_STR-BUZEIF sy-vline 
WA_J_3RNDSINV_STR-GJAHRF sy-vline 
WA_J_3RNDSINV_STR-MATNR sy-vline 
WA_J_3RNDSINV_STR-CHARG sy-vline 
WA_J_3RNDSINV_STR-OBJNR sy-vline 
WA_J_3RNDSINV_STR-DOBJNR sy-vline 
WA_J_3RNDSINV_STR-POSID sy-vline 
WA_J_3RNDSINV_STR-AUFNR sy-vline 
WA_J_3RNDSINV_STR-NPLNR sy-vline 
WA_J_3RNDSINV_STR-NKS_ANLN1 sy-vline 
WA_J_3RNDSINV_STR-NKS_ANLN2 sy-vline 
WA_J_3RNDSINV_STR-KOKRSP sy-vline 
WA_J_3RNDSINV_STR-KSTAR sy-vline 
WA_J_3RNDSINV_STR-MEINS sy-vline 
WA_J_3RNDSINV_STR-OBART sy-vline 
WA_J_3RNDSINV_STR-CODEOBJ sy-vline 
WA_J_3RNDSINV_STR-MONATP sy-vline 
WA_J_3RNDSINV_STR-XBLNRP sy-vline 
WA_J_3RNDSINV_STR-BUDATP sy-vline 
WA_J_3RNDSINV_STR-DMBTRP sy-vline 
WA_J_3RNDSINV_STR-MENGEP sy-vline 
WA_J_3RNDSINV_STR-NDSPOSP sy-vline 
WA_J_3RNDSINV_STR-WAERS sy-vline 
WA_J_3RNDSINV_STR-MWSKZP sy-vline 
WA_J_3RNDSINV_STR-FIRST_BELNR sy-vline 
WA_J_3RNDSINV_STR-MONATF sy-vline 
WA_J_3RNDSINV_STR-BUDATF sy-vline 
WA_J_3RNDSINV_STR-DMBTRF sy-vline 
WA_J_3RNDSINV_STR-MENGEF sy-vline 
WA_J_3RNDSINV_STR-NDSPOSF sy-vline 
WA_J_3RNDSINV_STR-BWARTF sy-vline 
WA_J_3RNDSINV_STR-GRUNDF sy-vline 
WA_J_3RNDSINV_STR-POSEND sy-vline 
WA_J_3RNDSINV_STR-ERRCODE sy-vline 
WA_J_3RNDSINV_STR-RUNDATE sy-vline 
WA_J_3RNDSINV_STR-RUNID sy-vline      INTO ld_text SEPARATED BY SPACE.

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