ABAP Select data from SAP table MSR_S_RRD_WORKLIST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MSR_S_RRD_WORKLIST
*  INTO TABLE @DATA(IT_MSR_S_RRD_WORKLIST2).
*--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_MSR_S_RRD_WORKLIST INDEX 1 INTO DATA(WA_MSR_S_RRD_WORKLIST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MSR_S_RRD_WORKLIST>-KUNNR = 1.
<MSR_S_RRD_WORKLIST>-VKORG = 1.
<MSR_S_RRD_WORKLIST>-RESWK = 1.
<MSR_S_RRD_WORKLIST>-VBELN = 1.
<MSR_S_RRD_WORKLIST>-AUART = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MSR_S_RRD_WORKLIST-VKBUR, sy-vline,
  WA_MSR_S_RRD_WORKLIST-NAME1, sy-vline,
  WA_MSR_S_RRD_WORKLIST-NAME2, sy-vline,
  WA_MSR_S_RRD_WORKLIST-ORT01, sy-vline,
  WA_MSR_S_RRD_WORKLIST-EKORG, sy-vline,
  WA_MSR_S_RRD_WORKLIST-LFART, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MSR_S_RRD_WORKLIST 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_MSR_S_RRD_WORKLIST 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_MSR_S_RRD_WORKLIST INTO WA_MSR_S_RRD_WORKLIST.


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

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

*Conversion exit AUART, internal->external for field AUART
CALL FUNCTION 'CONVERSION_EXIT_AUART_OUTPUT'
  EXPORTING
    input =                      WA_MSR_S_RRD_WORKLIST-AUART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MSR_S_RRD_WORKLIST-AUART.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MSR_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MSR_S_RRD_WORKLIST-MSR_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MSR_S_RRD_WORKLIST-MSR_ID.
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_MSR_S_RRD_WORKLIST_STR, 
KUNNR TYPE STRING,
VKORG TYPE STRING,
RESWK TYPE STRING,
VBELN TYPE STRING,
AUART TYPE STRING,
VKBUR TYPE STRING,
NAME1 TYPE STRING,
NAME2 TYPE STRING,
ORT01 TYPE STRING,
EKORG TYPE STRING,
LFART TYPE STRING,
WADAT_IST TYPE STRING,
VKOIV TYPE STRING,
VTWIV TYPE STRING,
SPAIV TYPE STRING,
MSR_ID TYPE STRING,
REF_DOC TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
LOGSTAT TYPE STRING,
MSR_DOC_TYPE TYPE STRING,
ITEMTAB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MSR_S_RRD_WORKLIST_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_MSR_S_RRD_WORKLIST_STR-KUNNR sy-vline 
WA_MSR_S_RRD_WORKLIST_STR-VKORG sy-vline 
WA_MSR_S_RRD_WORKLIST_STR-RESWK sy-vline 
WA_MSR_S_RRD_WORKLIST_STR-VBELN sy-vline 
WA_MSR_S_RRD_WORKLIST_STR-AUART sy-vline 
WA_MSR_S_RRD_WORKLIST_STR-VKBUR sy-vline 
WA_MSR_S_RRD_WORKLIST_STR-NAME1 sy-vline 
WA_MSR_S_RRD_WORKLIST_STR-NAME2 sy-vline 
WA_MSR_S_RRD_WORKLIST_STR-ORT01 sy-vline 
WA_MSR_S_RRD_WORKLIST_STR-EKORG sy-vline 
WA_MSR_S_RRD_WORKLIST_STR-LFART sy-vline 
WA_MSR_S_RRD_WORKLIST_STR-WADAT_IST sy-vline 
WA_MSR_S_RRD_WORKLIST_STR-VKOIV sy-vline 
WA_MSR_S_RRD_WORKLIST_STR-VTWIV sy-vline 
WA_MSR_S_RRD_WORKLIST_STR-SPAIV sy-vline 
WA_MSR_S_RRD_WORKLIST_STR-MSR_ID sy-vline 
WA_MSR_S_RRD_WORKLIST_STR-REF_DOC sy-vline 
WA_MSR_S_RRD_WORKLIST_STR-ERDAT sy-vline 
WA_MSR_S_RRD_WORKLIST_STR-ERNAM sy-vline 
WA_MSR_S_RRD_WORKLIST_STR-LOGSTAT sy-vline 
WA_MSR_S_RRD_WORKLIST_STR-MSR_DOC_TYPE sy-vline 
WA_MSR_S_RRD_WORKLIST_STR-ITEMTAB sy-vline      INTO ld_text SEPARATED BY SPACE.

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