ABAP Select data from SAP table MSR_S_RRD_ITEMS 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_ITEMS 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_ITEMS. 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_ITEMS 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_ITEMS TYPE STANDARD TABLE OF MSR_S_RRD_ITEMS,
      WA_MSR_S_RRD_ITEMS TYPE MSR_S_RRD_ITEMS,
      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_ITEMS> TYPE MSR_S_RRD_ITEMS.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MSR_S_RRD_ITEMS
*  INTO TABLE @DATA(IT_MSR_S_RRD_ITEMS2).
*--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_ITEMS INDEX 1 INTO DATA(WA_MSR_S_RRD_ITEMS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MSR_S_RRD_ITEMS>-POSNR = 1.
<MSR_S_RRD_ITEMS>-MSR_ITEM = 1.
<MSR_S_RRD_ITEMS>-MSR_SPLIT_ID = 1.
<MSR_S_RRD_ITEMS>-SPLITLEVEL = 1.
<MSR_S_RRD_ITEMS>-INTREFPOS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MSR_S_RRD_ITEMS-INTPOS, sy-vline,
  WA_MSR_S_RRD_ITEMS-MARK, sy-vline,
  WA_MSR_S_RRD_ITEMS-SENT_TO_ND, sy-vline,
  WA_MSR_S_RRD_ITEMS-SENT_TO_DL, sy-vline,
  WA_MSR_S_RRD_ITEMS-FORWARD_FLAG, sy-vline,
  WA_MSR_S_RRD_ITEMS-INSPEC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MSR_S_RRD_ITEMS 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_ITEMS 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_ITEMS INTO WA_MSR_S_RRD_ITEMS.


*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 MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_MSR_S_RRD_ITEMS-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MSR_S_RRD_ITEMS-MATNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit CUNIT, internal->external for field REPLACE_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_MSR_S_RRD_ITEMS-REPLACE_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MSR_S_RRD_ITEMS-REPLACE_UNIT.
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_ITEMS_STR, 
POSNR TYPE STRING,
MSR_ITEM TYPE STRING,
MSR_SPLIT_ID TYPE STRING,
SPLITLEVEL TYPE STRING,
INTREFPOS TYPE STRING,
INTPOS TYPE STRING,
MARK TYPE STRING,
SENT_TO_ND TYPE STRING,
SENT_TO_DL TYPE STRING,
FORWARD_FLAG TYPE STRING,
INSPEC TYPE STRING,
INVOICE_DOC_LINK TYPE STRING,
SPLITKZ TYPE STRING,
INSPEC_LOC TYPE STRING,
INSP_LOC_NAME TYPE STRING,
INSP_DOC_NR TYPE STRING,
INSP_DOC_ITEM TYPE STRING,
INVOICE_DOC_NR TYPE STRING,
MATNR TYPE STRING,
ARKTX TYPE STRING,
KWMENG TYPE STRING,
LFIMG TYPE STRING,
VRKME TYPE STRING,
OPMNG TYPE STRING,
OPMEINS TYPE STRING,
RFMNG TYPE STRING,
MEINS TYPE STRING,
DEVIATION TYPE STRING,
WAIT_FOR_CREDIT TYPE STRING,
MANUAL_SPLIT TYPE STRING,
RFMNG_TO_DOC TYPE STRING,
UMVKZ TYPE STRING,
UMVKN TYPE STRING,
FU_CODE TYPE STRING,
FU_CODE_TEXT TYPE STRING,
RET_REASON TYPE STRING,
RET_REASON_TXT TYPE STRING,
REFUND_CODE TYPE STRING,
REFUND_TXT TYPE STRING,
ABGRU TYPE STRING,
ABGRU_TXT TYPE STRING,
INSPECTION_CODE TYPE STRING,
INSP_TEXT TYPE STRING,
REPLACE_MATNR TYPE STRING,
REPLACE_QTY TYPE STRING,
REPLACE_UNIT TYPE STRING,
POSGUID TYPE STRING,
REP_AVAIL_DATE TYPE STRING,
REP_AVAIL_QTY TYPE STRING,
PAYING_PLANT TYPE STRING,
REFUND_TYPE TYPE STRING,
CUST_INSP_CODE TYPE STRING,
CUST_INSP_CODE_TEXT TYPE STRING,
CELLTAB TYPE STRING,
CELL_COLOR TYPE STRING,
SGT_RCAT TYPE STRING,
SGT_SCAT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MSR_S_RRD_ITEMS_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_ITEMS_STR-POSNR sy-vline 
WA_MSR_S_RRD_ITEMS_STR-MSR_ITEM sy-vline 
WA_MSR_S_RRD_ITEMS_STR-MSR_SPLIT_ID sy-vline 
WA_MSR_S_RRD_ITEMS_STR-SPLITLEVEL sy-vline 
WA_MSR_S_RRD_ITEMS_STR-INTREFPOS sy-vline 
WA_MSR_S_RRD_ITEMS_STR-INTPOS sy-vline 
WA_MSR_S_RRD_ITEMS_STR-MARK sy-vline 
WA_MSR_S_RRD_ITEMS_STR-SENT_TO_ND sy-vline 
WA_MSR_S_RRD_ITEMS_STR-SENT_TO_DL sy-vline 
WA_MSR_S_RRD_ITEMS_STR-FORWARD_FLAG sy-vline 
WA_MSR_S_RRD_ITEMS_STR-INSPEC sy-vline 
WA_MSR_S_RRD_ITEMS_STR-INVOICE_DOC_LINK sy-vline 
WA_MSR_S_RRD_ITEMS_STR-SPLITKZ sy-vline 
WA_MSR_S_RRD_ITEMS_STR-INSPEC_LOC sy-vline 
WA_MSR_S_RRD_ITEMS_STR-INSP_LOC_NAME sy-vline 
WA_MSR_S_RRD_ITEMS_STR-INSP_DOC_NR sy-vline 
WA_MSR_S_RRD_ITEMS_STR-INSP_DOC_ITEM sy-vline 
WA_MSR_S_RRD_ITEMS_STR-INVOICE_DOC_NR sy-vline 
WA_MSR_S_RRD_ITEMS_STR-MATNR sy-vline 
WA_MSR_S_RRD_ITEMS_STR-ARKTX sy-vline 
WA_MSR_S_RRD_ITEMS_STR-KWMENG sy-vline 
WA_MSR_S_RRD_ITEMS_STR-LFIMG sy-vline 
WA_MSR_S_RRD_ITEMS_STR-VRKME sy-vline 
WA_MSR_S_RRD_ITEMS_STR-OPMNG sy-vline 
WA_MSR_S_RRD_ITEMS_STR-OPMEINS sy-vline 
WA_MSR_S_RRD_ITEMS_STR-RFMNG sy-vline 
WA_MSR_S_RRD_ITEMS_STR-MEINS sy-vline 
WA_MSR_S_RRD_ITEMS_STR-DEVIATION sy-vline 
WA_MSR_S_RRD_ITEMS_STR-WAIT_FOR_CREDIT sy-vline 
WA_MSR_S_RRD_ITEMS_STR-MANUAL_SPLIT sy-vline 
WA_MSR_S_RRD_ITEMS_STR-RFMNG_TO_DOC sy-vline 
WA_MSR_S_RRD_ITEMS_STR-UMVKZ sy-vline 
WA_MSR_S_RRD_ITEMS_STR-UMVKN sy-vline 
WA_MSR_S_RRD_ITEMS_STR-FU_CODE sy-vline 
WA_MSR_S_RRD_ITEMS_STR-FU_CODE_TEXT sy-vline 
WA_MSR_S_RRD_ITEMS_STR-RET_REASON sy-vline 
WA_MSR_S_RRD_ITEMS_STR-RET_REASON_TXT sy-vline 
WA_MSR_S_RRD_ITEMS_STR-REFUND_CODE sy-vline 
WA_MSR_S_RRD_ITEMS_STR-REFUND_TXT sy-vline 
WA_MSR_S_RRD_ITEMS_STR-ABGRU sy-vline 
WA_MSR_S_RRD_ITEMS_STR-ABGRU_TXT sy-vline 
WA_MSR_S_RRD_ITEMS_STR-INSPECTION_CODE sy-vline 
WA_MSR_S_RRD_ITEMS_STR-INSP_TEXT sy-vline 
WA_MSR_S_RRD_ITEMS_STR-REPLACE_MATNR sy-vline 
WA_MSR_S_RRD_ITEMS_STR-REPLACE_QTY sy-vline 
WA_MSR_S_RRD_ITEMS_STR-REPLACE_UNIT sy-vline 
WA_MSR_S_RRD_ITEMS_STR-POSGUID sy-vline 
WA_MSR_S_RRD_ITEMS_STR-REP_AVAIL_DATE sy-vline 
WA_MSR_S_RRD_ITEMS_STR-REP_AVAIL_QTY sy-vline 
WA_MSR_S_RRD_ITEMS_STR-PAYING_PLANT sy-vline 
WA_MSR_S_RRD_ITEMS_STR-REFUND_TYPE sy-vline 
WA_MSR_S_RRD_ITEMS_STR-CUST_INSP_CODE sy-vline 
WA_MSR_S_RRD_ITEMS_STR-CUST_INSP_CODE_TEXT sy-vline 
WA_MSR_S_RRD_ITEMS_STR-CELLTAB sy-vline 
WA_MSR_S_RRD_ITEMS_STR-CELL_COLOR sy-vline 
WA_MSR_S_RRD_ITEMS_STR-SGT_RCAT sy-vline 
WA_MSR_S_RRD_ITEMS_STR-SGT_SCAT sy-vline      INTO ld_text SEPARATED BY SPACE.

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