ABAP Select data from SAP table MRM_S_ACCOUNTING_OBJECTS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MRM_S_ACCOUNTING_OBJECTS
*  INTO TABLE @DATA(IT_MRM_S_ACCOUNTING_OBJECTS2).
*--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_MRM_S_ACCOUNTING_OBJECTS INDEX 1 INTO DATA(WA_MRM_S_ACCOUNTING_OBJECTS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MRM_S_ACCOUNTING_OBJECTS>-ANLN1 = 1.
<MRM_S_ACCOUNTING_OBJECTS>-ANLN2 = 1.
<MRM_S_ACCOUNTING_OBJECTS>-APLZL = 1.
<MRM_S_ACCOUNTING_OBJECTS>-AUFNR = 1.
<MRM_S_ACCOUNTING_OBJECTS>-DABRZ = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MRM_S_ACCOUNTING_OBJECTS-FIPOS, sy-vline,
  WA_MRM_S_ACCOUNTING_OBJECTS-FISTL, sy-vline,
  WA_MRM_S_ACCOUNTING_OBJECTS-FKBER, sy-vline,
  WA_MRM_S_ACCOUNTING_OBJECTS-GEBER, sy-vline,
  WA_MRM_S_ACCOUNTING_OBJECTS-GRANT_NBR, sy-vline,
  WA_MRM_S_ACCOUNTING_OBJECTS-GSBER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MRM_S_ACCOUNTING_OBJECTS 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_MRM_S_ACCOUNTING_OBJECTS 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_MRM_S_ACCOUNTING_OBJECTS INTO WA_MRM_S_ACCOUNTING_OBJECTS.


*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 ANLN1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MRM_S_ACCOUNTING_OBJECTS-ANLN1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MRM_S_ACCOUNTING_OBJECTS-ANLN1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANLN2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MRM_S_ACCOUNTING_OBJECTS-ANLN2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MRM_S_ACCOUNTING_OBJECTS-ANLN2.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit FMCIS, internal->external for field FIPOS
CALL FUNCTION 'CONVERSION_EXIT_FMCIS_OUTPUT'
  EXPORTING
    input =                      WA_MRM_S_ACCOUNTING_OBJECTS-FIPOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MRM_S_ACCOUNTING_OBJECTS-FIPOS.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ABPSP, internal->external for field PS_PSP_PNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_MRM_S_ACCOUNTING_OBJECTS-PS_PSP_PNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MRM_S_ACCOUNTING_OBJECTS-PS_PSP_PNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

*Conversion exit NUMCV, internal->external for field VORNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_MRM_S_ACCOUNTING_OBJECTS-VORNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MRM_S_ACCOUNTING_OBJECTS-VORNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field ACRLOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MRM_S_ACCOUNTING_OBJECTS-ACRLOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MRM_S_ACCOUNTING_OBJECTS-ACRLOGSYS.
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_MRM_S_ACCOUNTING_OBJECTS_STR, 
ANLN1 TYPE STRING,
ANLN2 TYPE STRING,
APLZL TYPE STRING,
AUFNR TYPE STRING,
DABRZ TYPE STRING,
FIPOS TYPE STRING,
FISTL TYPE STRING,
FKBER TYPE STRING,
GEBER TYPE STRING,
GRANT_NBR TYPE STRING,
GSBER TYPE STRING,
IMKEY TYPE STRING,
KOKRS TYPE STRING,
KOSTL TYPE STRING,
KSTRG TYPE STRING,
PAOBJNR TYPE STRING,
PRCTR TYPE STRING,
PS_PSP_PNR TYPE STRING,
RECID TYPE STRING,
SAKNR TYPE STRING,
VBELN TYPE STRING,
VBELP TYPE STRING,
VPTNR TYPE STRING,
LSTAR TYPE STRING,
PRZNR TYPE STRING,
AUFPL TYPE STRING,
BZDAT TYPE STRING,
ERLKZ TYPE STRING,
FIKRS TYPE STRING,
KBLNR TYPE STRING,
KBLPOS TYPE STRING,
PARGB TYPE STRING,
PERNR TYPE STRING,
WORK_ITEM_ID TYPE STRING,
NPLNR TYPE STRING,
VORNR TYPE STRING,
ZUONR TYPE STRING,
ABPER TYPE STRING,
LEDAT TYPE STRING,
BUDGET_PD TYPE STRING,
MEASURE TYPE STRING,
FMFGUS_KEY TYPE STRING,
SERVICE_DOC_TYPE TYPE STRING,
SERVICE_DOC_ID TYPE STRING,
SERVICE_DOC_ITEM_ID TYPE STRING,
ACROBJTYPE TYPE STRING,
ACRLOGSYS TYPE STRING,
ACROBJ_ID TYPE STRING,
ACRSOBJ_ID TYPE STRING,
ACRITMTYPE TYPE STRING,
ACRREFOBJ_ID TYPE STRING,
ACRVALDAT TYPE STRING,
BEWAR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MRM_S_ACCOUNTING_OBJECTS_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_MRM_S_ACCOUNTING_OBJECTS_STR-ANLN1 sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-ANLN2 sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-APLZL sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-AUFNR sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-DABRZ sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-FIPOS sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-FISTL sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-FKBER sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-GEBER sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-GRANT_NBR sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-GSBER sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-IMKEY sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-KOKRS sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-KOSTL sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-KSTRG sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-PAOBJNR sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-PRCTR sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-PS_PSP_PNR sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-RECID sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-SAKNR sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-VBELN sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-VBELP sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-VPTNR sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-LSTAR sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-PRZNR sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-AUFPL sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-BZDAT sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-ERLKZ sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-FIKRS sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-KBLNR sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-KBLPOS sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-PARGB sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-PERNR sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-WORK_ITEM_ID sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-NPLNR sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-VORNR sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-ZUONR sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-ABPER sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-LEDAT sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-BUDGET_PD sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-MEASURE sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-FMFGUS_KEY sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-SERVICE_DOC_TYPE sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-SERVICE_DOC_ID sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-SERVICE_DOC_ITEM_ID sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-ACROBJTYPE sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-ACRLOGSYS sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-ACROBJ_ID sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-ACRSOBJ_ID sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-ACRITMTYPE sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-ACRREFOBJ_ID sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-ACRVALDAT sy-vline 
WA_MRM_S_ACCOUNTING_OBJECTS_STR-BEWAR sy-vline      INTO ld_text SEPARATED BY SPACE.

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