ABAP Select data from SAP table RMXMS_ROM_QM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RMXMS_ROM_QM
*  INTO TABLE @DATA(IT_RMXMS_ROM_QM2).
*--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_RMXMS_ROM_QM INDEX 1 INTO DATA(WA_RMXMS_ROM_QM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RMXMS_ROM_QM>-BEZUGSTP = 1.
<RMXMS_ROM_QM>-RASTZEHT = 1.
<RMXMS_ROM_QM>-RASTZFAK = 1.
<RMXMS_ROM_QM>-RASTEREH = 1.
<RMXMS_ROM_QM>-RASTMENG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RMXMS_ROM_QM-RECN, sy-vline,
  WA_RMXMS_ROM_QM-VALFR, sy-vline,
  WA_RMXMS_ROM_QM-VALTO, sy-vline,
  WA_RMXMS_ROM_QM-AENNR, sy-vline,
  WA_RMXMS_ROM_QM-DELFLG, sy-vline,
  WA_RMXMS_ROM_QM-MERKNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RMXMS_ROM_QM 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_RMXMS_ROM_QM 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_RMXMS_ROM_QM INTO WA_RMXMS_ROM_QM.


*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 RASTZEHT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RMXMS_ROM_QM-RASTZEHT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RMXMS_ROM_QM-RASTZEHT.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

*Conversion exit CUNIT, internal->external for field MASSEINHSW
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RMXMS_ROM_QM-MASSEINHSW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RMXMS_ROM_QM-MASSEINHSW.
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_RMXMS_ROM_QM_STR, 
BEZUGSTP TYPE STRING,
RASTZEHT TYPE STRING,
RASTZFAK TYPE STRING,
RASTEREH TYPE STRING,
RASTMENG TYPE STRING,
RECN TYPE STRING,
VALFR TYPE STRING,
VALTO TYPE STRING,
AENNR TYPE STRING,
DELFLG TYPE STRING,
MERKNR TYPE STRING,
VERWMERKM TYPE STRING,
MKVERSION TYPE STRING,
PMETHODE TYPE STRING,
PMTVERSION TYPE STRING,
STICHVERF TYPE STRING,
PRUEFEINH TYPE STRING,
PROBEMGEH TYPE STRING,
QPMK_REF TYPE STRING,
MERKGEW TYPE STRING,
MASSEINHSW TYPE STRING,
SOLLWERT TYPE STRING,
SOLLWNI TYPE STRING,
TOLERANZUN TYPE STRING,
TOLUNNI TYPE STRING,
TOLERANZOB TYPE STRING,
TOLOBNI TYPE STRING,
STEUERKZ TYPE STRING,
QM_INSP_TXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RMXMS_ROM_QM_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_RMXMS_ROM_QM_STR-BEZUGSTP sy-vline 
WA_RMXMS_ROM_QM_STR-RASTZEHT sy-vline 
WA_RMXMS_ROM_QM_STR-RASTZFAK sy-vline 
WA_RMXMS_ROM_QM_STR-RASTEREH sy-vline 
WA_RMXMS_ROM_QM_STR-RASTMENG sy-vline 
WA_RMXMS_ROM_QM_STR-RECN sy-vline 
WA_RMXMS_ROM_QM_STR-VALFR sy-vline 
WA_RMXMS_ROM_QM_STR-VALTO sy-vline 
WA_RMXMS_ROM_QM_STR-AENNR sy-vline 
WA_RMXMS_ROM_QM_STR-DELFLG sy-vline 
WA_RMXMS_ROM_QM_STR-MERKNR sy-vline 
WA_RMXMS_ROM_QM_STR-VERWMERKM sy-vline 
WA_RMXMS_ROM_QM_STR-MKVERSION sy-vline 
WA_RMXMS_ROM_QM_STR-PMETHODE sy-vline 
WA_RMXMS_ROM_QM_STR-PMTVERSION sy-vline 
WA_RMXMS_ROM_QM_STR-STICHVERF sy-vline 
WA_RMXMS_ROM_QM_STR-PRUEFEINH sy-vline 
WA_RMXMS_ROM_QM_STR-PROBEMGEH sy-vline 
WA_RMXMS_ROM_QM_STR-QPMK_REF sy-vline 
WA_RMXMS_ROM_QM_STR-MERKGEW sy-vline 
WA_RMXMS_ROM_QM_STR-MASSEINHSW sy-vline 
WA_RMXMS_ROM_QM_STR-SOLLWERT sy-vline 
WA_RMXMS_ROM_QM_STR-SOLLWNI sy-vline 
WA_RMXMS_ROM_QM_STR-TOLERANZUN sy-vline 
WA_RMXMS_ROM_QM_STR-TOLUNNI sy-vline 
WA_RMXMS_ROM_QM_STR-TOLERANZOB sy-vline 
WA_RMXMS_ROM_QM_STR-TOLOBNI sy-vline 
WA_RMXMS_ROM_QM_STR-STEUERKZ sy-vline 
WA_RMXMS_ROM_QM_STR-QM_INSP_TXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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