ABAP Select data from SAP table RJKSDCOLLECTION_ALV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJKSDCOLLECTION_ALV
*  INTO TABLE @DATA(IT_RJKSDCOLLECTION_ALV2).
*--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_RJKSDCOLLECTION_ALV INDEX 1 INTO DATA(WA_RJKSDCOLLECTION_ALV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RJKSDCOLLECTION_ALV>-BAG = 1.
<RJKSDCOLLECTION_ALV>-ID = 1.
<RJKSDCOLLECTION_ALV>-UNSOLDGP = 1.
<RJKSDCOLLECTION_ALV>-GPNAME = 1.
<RJKSDCOLLECTION_ALV>-ROLE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RJKSDCOLLECTION_ALV-COLLECTDATE, sy-vline,
  WA_RJKSDCOLLECTION_ALV-UNSOLDNUMBER, sy-vline,
  WA_RJKSDCOLLECTION_ALV-STATE, sy-vline,
  WA_RJKSDCOLLECTION_ALV-MEDIA_ISSUE, sy-vline,
  WA_RJKSDCOLLECTION_ALV-VKORG, sy-vline,
  WA_RJKSDCOLLECTION_ALV-VTWEG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RJKSDCOLLECTION_ALV 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_RJKSDCOLLECTION_ALV 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_RJKSDCOLLECTION_ALV INTO WA_RJKSDCOLLECTION_ALV.


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

*Conversion exit PARVW, internal->external for field ROLE
CALL FUNCTION 'CONVERSION_EXIT_PARVW_OUTPUT'
  EXPORTING
    input =                      WA_RJKSDCOLLECTION_ALV-ROLE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJKSDCOLLECTION_ALV-ROLE.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit MATN1, internal->external for field MED_FAM
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_RJKSDCOLLECTION_ALV-MED_FAM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJKSDCOLLECTION_ALV-MED_FAM.
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_RJKSDCOLLECTION_ALV_STR, 
BAG TYPE STRING,
ID TYPE STRING,
UNSOLDGP TYPE STRING,
GPNAME TYPE STRING,
ROLE TYPE STRING,
COLLECTDATE TYPE STRING,
UNSOLDNUMBER TYPE STRING,
STATE TYPE STRING,
MEDIA_ISSUE TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
WERKS TYPE STRING,
RETURNPHASE TYPE STRING,
REASON TYPE STRING,
SORT TYPE STRING,
RMUNSOLD_QUAN TYPE STRING,
RMUNSOLD_UNIT TYPE STRING,
MED_PROD TYPE STRING,
MED_FAM TYPE STRING,
ISMCOPYNR TYPE STRING,
ISMYEARNR TYPE STRING,
ISMONSALEDATE TYPE STRING,
ISMOFFSALEDATE TYPE STRING,
REMARK TYPE STRING,
ERFUSER TYPE STRING,
ERFDATE TYPE STRING,
ERFTIME TYPE STRING,
AENUSER TYPE STRING,
AENDATE TYPE STRING,
AENTIME TYPE STRING,
COLTAB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJKSDCOLLECTION_ALV_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_RJKSDCOLLECTION_ALV_STR-BAG sy-vline 
WA_RJKSDCOLLECTION_ALV_STR-ID sy-vline 
WA_RJKSDCOLLECTION_ALV_STR-UNSOLDGP sy-vline 
WA_RJKSDCOLLECTION_ALV_STR-GPNAME sy-vline 
WA_RJKSDCOLLECTION_ALV_STR-ROLE sy-vline 
WA_RJKSDCOLLECTION_ALV_STR-COLLECTDATE sy-vline 
WA_RJKSDCOLLECTION_ALV_STR-UNSOLDNUMBER sy-vline 
WA_RJKSDCOLLECTION_ALV_STR-STATE sy-vline 
WA_RJKSDCOLLECTION_ALV_STR-MEDIA_ISSUE sy-vline 
WA_RJKSDCOLLECTION_ALV_STR-VKORG sy-vline 
WA_RJKSDCOLLECTION_ALV_STR-VTWEG sy-vline 
WA_RJKSDCOLLECTION_ALV_STR-WERKS sy-vline 
WA_RJKSDCOLLECTION_ALV_STR-RETURNPHASE sy-vline 
WA_RJKSDCOLLECTION_ALV_STR-REASON sy-vline 
WA_RJKSDCOLLECTION_ALV_STR-SORT sy-vline 
WA_RJKSDCOLLECTION_ALV_STR-RMUNSOLD_QUAN sy-vline 
WA_RJKSDCOLLECTION_ALV_STR-RMUNSOLD_UNIT sy-vline 
WA_RJKSDCOLLECTION_ALV_STR-MED_PROD sy-vline 
WA_RJKSDCOLLECTION_ALV_STR-MED_FAM sy-vline 
WA_RJKSDCOLLECTION_ALV_STR-ISMCOPYNR sy-vline 
WA_RJKSDCOLLECTION_ALV_STR-ISMYEARNR sy-vline 
WA_RJKSDCOLLECTION_ALV_STR-ISMONSALEDATE sy-vline 
WA_RJKSDCOLLECTION_ALV_STR-ISMOFFSALEDATE sy-vline 
WA_RJKSDCOLLECTION_ALV_STR-REMARK sy-vline 
WA_RJKSDCOLLECTION_ALV_STR-ERFUSER sy-vline 
WA_RJKSDCOLLECTION_ALV_STR-ERFDATE sy-vline 
WA_RJKSDCOLLECTION_ALV_STR-ERFTIME sy-vline 
WA_RJKSDCOLLECTION_ALV_STR-AENUSER sy-vline 
WA_RJKSDCOLLECTION_ALV_STR-AENDATE sy-vline 
WA_RJKSDCOLLECTION_ALV_STR-AENTIME sy-vline 
WA_RJKSDCOLLECTION_ALV_STR-COLTAB sy-vline      INTO ld_text SEPARATED BY SPACE.

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