ABAP Select data from SAP table EXBWG_DE_MRM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP EXBWG_DE_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 EXBWG_DE_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 EXBWG_DE_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_EXBWG_DE_MRM TYPE STANDARD TABLE OF EXBWG_DE_MRM,
      WA_EXBWG_DE_MRM TYPE EXBWG_DE_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: <EXBWG_DE_MRM> TYPE EXBWG_DE_MRM.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EXBWG_DE_MRM
*  INTO TABLE @DATA(IT_EXBWG_DE_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_EXBWG_DE_MRM INDEX 1 INTO DATA(WA_EXBWG_DE_MRM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EXBWG_DE_MRM>-MANDT = 1.
<EXBWG_DE_MRM>-BUKRS = 1.
<EXBWG_DE_MRM>-RLDEPO = 1.
<EXBWG_DE_MRM>-RANL = 1.
<EXBWG_DE_MRM>-RLOT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EXBWG_DE_MRM-SDEAL_LOT_CAT, sy-vline,
  WA_EXBWG_DE_MRM-D_ASTUECK, sy-vline,
  WA_EXBWG_DE_MRM-DVONDAT, sy-vline,
  WA_EXBWG_DE_MRM-DBISDAT, sy-vline,
  WA_EXBWG_DE_MRM-DFAELL, sy-vline,
  WA_EXBWG_DE_MRM-DZTERM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EXBWG_DE_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_EXBWG_DE_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_EXBWG_DE_MRM INTO WA_EXBWG_DE_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 ALPHA, internal->external for field RANL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EXBWG_DE_MRM-RANL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EXBWG_DE_MRM-RANL.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field RPZAHL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EXBWG_DE_MRM-RPZAHL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EXBWG_DE_MRM-RPZAHL.
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_EXBWG_DE_MRM_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
RLDEPO TYPE STRING,
RANL TYPE STRING,
RLOT TYPE STRING,
SDEAL_LOT_CAT TYPE STRING,
D_ASTUECK TYPE STRING,
DVONDAT TYPE STRING,
DBISDAT TYPE STRING,
DFAELL TYPE STRING,
DZTERM TYPE STRING,
SANLF TYPE STRING,
GSART TYPE STRING,
SFGTYP TYPE STRING,
SFHAART TYPE STRING,
KONTRH TYPE STRING,
SBEWART TYPE STRING,
SSIGN TYPE STRING,
RREFKONT TYPE STRING,
TR_POSTINGSTATE TYPE STRING,
TR_POSTINGDATE TYPE STRING,
SBWHR TYPE STRING,
SHWHR TYPE STRING,
SCWHR TYPE STRING,
D_BNOMBW TYPE STRING,
D_CASHCW TYPE STRING,
D_CASHHW TYPE STRING,
D_AWBW TYPE STRING,
D_AWHW TYPE STRING,
D_BWBW TYPE STRING,
D_BWHW TYPE STRING,
D_ERFOLGBW TYPE STRING,
D_ERFOLGHW TYPE STRING,
ZUOND TYPE STRING,
REFER TYPE STRING,
MERKM TYPE STRING,
RKONTRA TYPE STRING,
RDEALER TYPE STRING,
RHANDPL TYPE STRING,
ZLSCH TYPE STRING,
RPZAHL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EXBWG_DE_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_EXBWG_DE_MRM_STR-MANDT sy-vline 
WA_EXBWG_DE_MRM_STR-BUKRS sy-vline 
WA_EXBWG_DE_MRM_STR-RLDEPO sy-vline 
WA_EXBWG_DE_MRM_STR-RANL sy-vline 
WA_EXBWG_DE_MRM_STR-RLOT sy-vline 
WA_EXBWG_DE_MRM_STR-SDEAL_LOT_CAT sy-vline 
WA_EXBWG_DE_MRM_STR-D_ASTUECK sy-vline 
WA_EXBWG_DE_MRM_STR-DVONDAT sy-vline 
WA_EXBWG_DE_MRM_STR-DBISDAT sy-vline 
WA_EXBWG_DE_MRM_STR-DFAELL sy-vline 
WA_EXBWG_DE_MRM_STR-DZTERM sy-vline 
WA_EXBWG_DE_MRM_STR-SANLF sy-vline 
WA_EXBWG_DE_MRM_STR-GSART sy-vline 
WA_EXBWG_DE_MRM_STR-SFGTYP sy-vline 
WA_EXBWG_DE_MRM_STR-SFHAART sy-vline 
WA_EXBWG_DE_MRM_STR-KONTRH sy-vline 
WA_EXBWG_DE_MRM_STR-SBEWART sy-vline 
WA_EXBWG_DE_MRM_STR-SSIGN sy-vline 
WA_EXBWG_DE_MRM_STR-RREFKONT sy-vline 
WA_EXBWG_DE_MRM_STR-TR_POSTINGSTATE sy-vline 
WA_EXBWG_DE_MRM_STR-TR_POSTINGDATE sy-vline 
WA_EXBWG_DE_MRM_STR-SBWHR sy-vline 
WA_EXBWG_DE_MRM_STR-SHWHR sy-vline 
WA_EXBWG_DE_MRM_STR-SCWHR sy-vline 
WA_EXBWG_DE_MRM_STR-D_BNOMBW sy-vline 
WA_EXBWG_DE_MRM_STR-D_CASHCW sy-vline 
WA_EXBWG_DE_MRM_STR-D_CASHHW sy-vline 
WA_EXBWG_DE_MRM_STR-D_AWBW sy-vline 
WA_EXBWG_DE_MRM_STR-D_AWHW sy-vline 
WA_EXBWG_DE_MRM_STR-D_BWBW sy-vline 
WA_EXBWG_DE_MRM_STR-D_BWHW sy-vline 
WA_EXBWG_DE_MRM_STR-D_ERFOLGBW sy-vline 
WA_EXBWG_DE_MRM_STR-D_ERFOLGHW sy-vline 
WA_EXBWG_DE_MRM_STR-ZUOND sy-vline 
WA_EXBWG_DE_MRM_STR-REFER sy-vline 
WA_EXBWG_DE_MRM_STR-MERKM sy-vline 
WA_EXBWG_DE_MRM_STR-RKONTRA sy-vline 
WA_EXBWG_DE_MRM_STR-RDEALER sy-vline 
WA_EXBWG_DE_MRM_STR-RHANDPL sy-vline 
WA_EXBWG_DE_MRM_STR-ZLSCH sy-vline 
WA_EXBWG_DE_MRM_STR-RPZAHL sy-vline      INTO ld_text SEPARATED BY SPACE.

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