ABAP Select data from SAP table RJVSDPRODCOMP 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 RJVSDPRODCOMP 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 RJVSDPRODCOMP. 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 RJVSDPRODCOMP 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_RJVSDPRODCOMP TYPE STANDARD TABLE OF RJVSDPRODCOMP,
      WA_RJVSDPRODCOMP TYPE RJVSDPRODCOMP,
      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: <RJVSDPRODCOMP> TYPE RJVSDPRODCOMP.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJVSDPRODCOMP
*  INTO TABLE @DATA(IT_RJVSDPRODCOMP2).
*--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_RJVSDPRODCOMP INDEX 1 INTO DATA(WA_RJVSDPRODCOMP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RJVSDPRODCOMP>-MANDT = 1.
<RJVSDPRODCOMP>-ASSIGNEMENTTYPE = 1.
<RJVSDPRODCOMP>-MEDIAPRODUCT = 1.
<RJVSDPRODCOMP>-ISMPRODUCTTYPEAC = 1.
<RJVSDPRODCOMP>-ASSIGNEDPRODUCT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RJVSDPRODCOMP-ISMASSPRODTYPEAC, sy-vline,
  WA_RJVSDPRODCOMP-VALIDFROM, sy-vline,
  WA_RJVSDPRODCOMP-VALIDTO, sy-vline,
  WA_RJVSDPRODCOMP-ADV_SHP, sy-vline,
  WA_RJVSDPRODCOMP-PACKING_TAG, sy-vline,
  WA_RJVSDPRODCOMP-MENGE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RJVSDPRODCOMP 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_RJVSDPRODCOMP 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_RJVSDPRODCOMP INTO WA_RJVSDPRODCOMP.


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

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

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RJVSDPRODCOMP-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJVSDPRODCOMP-MEINS.
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_RJVSDPRODCOMP_STR, 
MANDT TYPE STRING,
ASSIGNEMENTTYPE TYPE STRING,
MEDIAPRODUCT TYPE STRING,
ISMPRODUCTTYPEAC TYPE STRING,
ASSIGNEDPRODUCT TYPE STRING,
ISMASSPRODTYPEAC TYPE STRING,
VALIDFROM TYPE STRING,
VALIDTO TYPE STRING,
ADV_SHP TYPE STRING,
PACKING_TAG TYPE STRING,
MENGE TYPE STRING,
MEINS TYPE STRING,
FMENG TYPE STRING,
ERFUSER TYPE STRING,
ERFDATE TYPE STRING,
ERFTIME TYPE STRING,
AENUSER TYPE STRING,
AENDATE TYPE STRING,
AENTIME TYPE STRING,
PQP_LEVEL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJVSDPRODCOMP_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_RJVSDPRODCOMP_STR-MANDT sy-vline 
WA_RJVSDPRODCOMP_STR-ASSIGNEMENTTYPE sy-vline 
WA_RJVSDPRODCOMP_STR-MEDIAPRODUCT sy-vline 
WA_RJVSDPRODCOMP_STR-ISMPRODUCTTYPEAC sy-vline 
WA_RJVSDPRODCOMP_STR-ASSIGNEDPRODUCT sy-vline 
WA_RJVSDPRODCOMP_STR-ISMASSPRODTYPEAC sy-vline 
WA_RJVSDPRODCOMP_STR-VALIDFROM sy-vline 
WA_RJVSDPRODCOMP_STR-VALIDTO sy-vline 
WA_RJVSDPRODCOMP_STR-ADV_SHP sy-vline 
WA_RJVSDPRODCOMP_STR-PACKING_TAG sy-vline 
WA_RJVSDPRODCOMP_STR-MENGE sy-vline 
WA_RJVSDPRODCOMP_STR-MEINS sy-vline 
WA_RJVSDPRODCOMP_STR-FMENG sy-vline 
WA_RJVSDPRODCOMP_STR-ERFUSER sy-vline 
WA_RJVSDPRODCOMP_STR-ERFDATE sy-vline 
WA_RJVSDPRODCOMP_STR-ERFTIME sy-vline 
WA_RJVSDPRODCOMP_STR-AENUSER sy-vline 
WA_RJVSDPRODCOMP_STR-AENDATE sy-vline 
WA_RJVSDPRODCOMP_STR-AENTIME sy-vline 
WA_RJVSDPRODCOMP_STR-PQP_LEVEL sy-vline      INTO ld_text SEPARATED BY SPACE.

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