ABAP Select data from SAP table COBL_MRM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM COBL_MRM
*  INTO TABLE @DATA(IT_COBL_MRM2).
*--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_COBL_MRM INDEX 1 INTO DATA(WA_COBL_MRM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<COBL_MRM>-WRBTR = 1.
<COBL_MRM>-SGTXT = 1.
<COBL_MRM>-TXJCD = 1.
<COBL_MRM>-DUMMY_INCL_EEW_COBL = 1.
<COBL_MRM>-MENGE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_COBL_MRM-MWSKZ, sy-vline,
  WA_COBL_MRM-BPMNG, sy-vline,
  WA_COBL_MRM-BUKRS, sy-vline,
  WA_COBL_MRM-SHKZG, sy-vline,
  WA_COBL_MRM-BNKAN_FW, sy-vline,
  WA_COBL_MRM-XNEGP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_COBL_MRM 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_COBL_MRM 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_COBL_MRM INTO WA_COBL_MRM.


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

*Conversion exit ALPHA, internal->external for field ANLN1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_COBL_MRM-ANLN1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COBL_MRM-ANLN1.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field KBLNR_CAB
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_COBL_MRM-KBLNR_CAB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COBL_MRM-KBLNR_CAB.
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_COBL_MRM_STR, 
WRBTR TYPE STRING,
SGTXT TYPE STRING,
TXJCD TYPE STRING,
DUMMY_INCL_EEW_COBL TYPE STRING,
MENGE TYPE STRING,
MWSKZ TYPE STRING,
BPMNG TYPE STRING,
BUKRS TYPE STRING,
SHKZG TYPE STRING,
BNKAN_FW TYPE STRING,
XNEGP TYPE STRING,
XSKRL TYPE STRING,
MEINS TYPE STRING,
MWART TYPE STRING,
FWBAS TYPE STRING,
HWBAS TYPE STRING,
MENGE_F TYPE STRING,
BPMNG_F TYPE STRING,
WERKS TYPE STRING,
ZEKKN TYPE STRING,
XUNPL TYPE STRING,
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,
TXDAT TYPE STRING,
TXDAT_FROM TYPE STRING,
TAX_COUNTRY TYPE STRING,
T2CCODE_CRCY_CONV_FACTOR TYPE STRING,
T2CNTRY_CRCY_CONV_FACTOR TYPE STRING,
KBLNR_CAB TYPE STRING,
KBLPOS_CAB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_COBL_MRM_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_COBL_MRM_STR-WRBTR sy-vline 
WA_COBL_MRM_STR-SGTXT sy-vline 
WA_COBL_MRM_STR-TXJCD sy-vline 
WA_COBL_MRM_STR-DUMMY_INCL_EEW_COBL sy-vline 
WA_COBL_MRM_STR-MENGE sy-vline 
WA_COBL_MRM_STR-MWSKZ sy-vline 
WA_COBL_MRM_STR-BPMNG sy-vline 
WA_COBL_MRM_STR-BUKRS sy-vline 
WA_COBL_MRM_STR-SHKZG sy-vline 
WA_COBL_MRM_STR-BNKAN_FW sy-vline 
WA_COBL_MRM_STR-XNEGP sy-vline 
WA_COBL_MRM_STR-XSKRL sy-vline 
WA_COBL_MRM_STR-MEINS sy-vline 
WA_COBL_MRM_STR-MWART sy-vline 
WA_COBL_MRM_STR-FWBAS sy-vline 
WA_COBL_MRM_STR-HWBAS sy-vline 
WA_COBL_MRM_STR-MENGE_F sy-vline 
WA_COBL_MRM_STR-BPMNG_F sy-vline 
WA_COBL_MRM_STR-WERKS sy-vline 
WA_COBL_MRM_STR-ZEKKN sy-vline 
WA_COBL_MRM_STR-XUNPL sy-vline 
WA_COBL_MRM_STR-ANLN1 sy-vline 
WA_COBL_MRM_STR-ANLN2 sy-vline 
WA_COBL_MRM_STR-APLZL sy-vline 
WA_COBL_MRM_STR-AUFNR sy-vline 
WA_COBL_MRM_STR-DABRZ sy-vline 
WA_COBL_MRM_STR-FIPOS sy-vline 
WA_COBL_MRM_STR-FISTL sy-vline 
WA_COBL_MRM_STR-FKBER sy-vline 
WA_COBL_MRM_STR-GEBER sy-vline 
WA_COBL_MRM_STR-GRANT_NBR sy-vline 
WA_COBL_MRM_STR-GSBER sy-vline 
WA_COBL_MRM_STR-IMKEY sy-vline 
WA_COBL_MRM_STR-KOKRS sy-vline 
WA_COBL_MRM_STR-KOSTL sy-vline 
WA_COBL_MRM_STR-KSTRG sy-vline 
WA_COBL_MRM_STR-PAOBJNR sy-vline 
WA_COBL_MRM_STR-PRCTR sy-vline 
WA_COBL_MRM_STR-PS_PSP_PNR sy-vline 
WA_COBL_MRM_STR-RECID sy-vline 
WA_COBL_MRM_STR-SAKNR sy-vline 
WA_COBL_MRM_STR-VBELN sy-vline 
WA_COBL_MRM_STR-VBELP sy-vline 
WA_COBL_MRM_STR-VPTNR sy-vline 
WA_COBL_MRM_STR-LSTAR sy-vline 
WA_COBL_MRM_STR-PRZNR sy-vline 
WA_COBL_MRM_STR-AUFPL sy-vline 
WA_COBL_MRM_STR-BZDAT sy-vline 
WA_COBL_MRM_STR-ERLKZ sy-vline 
WA_COBL_MRM_STR-FIKRS sy-vline 
WA_COBL_MRM_STR-KBLNR sy-vline 
WA_COBL_MRM_STR-KBLPOS sy-vline 
WA_COBL_MRM_STR-PARGB sy-vline 
WA_COBL_MRM_STR-PERNR sy-vline 
WA_COBL_MRM_STR-WORK_ITEM_ID sy-vline 
WA_COBL_MRM_STR-NPLNR sy-vline 
WA_COBL_MRM_STR-VORNR sy-vline 
WA_COBL_MRM_STR-ZUONR sy-vline 
WA_COBL_MRM_STR-ABPER sy-vline 
WA_COBL_MRM_STR-LEDAT sy-vline 
WA_COBL_MRM_STR-BUDGET_PD sy-vline 
WA_COBL_MRM_STR-MEASURE sy-vline 
WA_COBL_MRM_STR-FMFGUS_KEY sy-vline 
WA_COBL_MRM_STR-SERVICE_DOC_TYPE sy-vline 
WA_COBL_MRM_STR-SERVICE_DOC_ID sy-vline 
WA_COBL_MRM_STR-SERVICE_DOC_ITEM_ID sy-vline 
WA_COBL_MRM_STR-ACROBJTYPE sy-vline 
WA_COBL_MRM_STR-ACRLOGSYS sy-vline 
WA_COBL_MRM_STR-ACROBJ_ID sy-vline 
WA_COBL_MRM_STR-ACRSOBJ_ID sy-vline 
WA_COBL_MRM_STR-ACRITMTYPE sy-vline 
WA_COBL_MRM_STR-ACRREFOBJ_ID sy-vline 
WA_COBL_MRM_STR-ACRVALDAT sy-vline 
WA_COBL_MRM_STR-BEWAR sy-vline 
WA_COBL_MRM_STR-TXDAT sy-vline 
WA_COBL_MRM_STR-TXDAT_FROM sy-vline 
WA_COBL_MRM_STR-TAX_COUNTRY sy-vline 
WA_COBL_MRM_STR-T2CCODE_CRCY_CONV_FACTOR sy-vline 
WA_COBL_MRM_STR-T2CNTRY_CRCY_CONV_FACTOR sy-vline 
WA_COBL_MRM_STR-KBLNR_CAB sy-vline 
WA_COBL_MRM_STR-KBLPOS_CAB sy-vline      INTO ld_text SEPARATED BY SPACE.

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