ABAP Select data from SAP table QPMK into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP QPMK 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 QPMK. 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 QPMK 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_QPMK TYPE STANDARD TABLE OF QPMK,
      WA_QPMK TYPE QPMK,
      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: <QPMK> TYPE QPMK.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM QPMK
*  INTO TABLE @DATA(IT_QPMK2).
*--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_QPMK INDEX 1 INTO DATA(WA_QPMK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<QPMK>-MANDT = 1.
<QPMK>-ZAEHLER = 1.
<QPMK>-MKMNR = 1.
<QPMK>-VERSION = 1.
<QPMK>-WERKS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_QPMK-GUELTIGAB, sy-vline,
  WA_QPMK-SORTFELD, sy-vline,
  WA_QPMK-CHARACT_ID1, sy-vline,
  WA_QPMK-LOEKZ, sy-vline,
  WA_QPMK-LSPER, sy-vline,
  WA_QPMK-KONSISTENT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_QPMK 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_QPMK 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_QPMK INTO WA_QPMK.


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

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

*Conversion exit ALPHA, internal->external for field CHARACT_ID1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_QPMK-CHARACT_ID1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QPMK-CHARACT_ID1.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field CODEVR9U
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_QPMK-CODEVR9U
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QPMK-CODEVR9U.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CODEVR9O
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_QPMK-CODEVR9O
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QPMK-CODEVR9O.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ATINN, internal->external for field ATINN
CALL FUNCTION 'CONVERSION_EXIT_ATINN_OUTPUT'
  EXPORTING
    input =                      WA_QPMK-ATINN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QPMK-ATINN.
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_QPMK_STR, 
MANDT TYPE STRING,
ZAEHLER TYPE STRING,
MKMNR TYPE STRING,
VERSION TYPE STRING,
WERKS TYPE STRING,
GUELTIGAB TYPE STRING,
SORTFELD TYPE STRING,
CHARACT_ID1 TYPE STRING,
LOEKZ TYPE STRING,
LSPER TYPE STRING,
KONSISTENT TYPE STRING,
AUTOR TYPE STRING,
DATES TYPE STRING,
AEAUT TYPE STRING,
DATAE TYPE STRING,
CHANGEDDATETIME TYPE STRING,
STEUERKZ TYPE STRING,
MERKGEW TYPE STRING,
PRFQL TYPE STRING,
DUMMY10 TYPE STRING,
DUMMY20 TYPE STRING,
DUMMY40 TYPE STRING,
QAUTH TYPE STRING,
TOLERANZSL TYPE STRING,
STELLEN TYPE STRING,
MASSEINHSW TYPE STRING,
SOLLWERT TYPE STRING,
SOLLWNI TYPE STRING,
TOLERANZOB TYPE STRING,
TOLOBNI TYPE STRING,
TOLERANZUN TYPE STRING,
TOLUNNI TYPE STRING,
KLASANZAHL TYPE STRING,
KLASBREITE TYPE STRING,
KLASBRNI TYPE STRING,
KLASMITTE TYPE STRING,
KLASMINI TYPE STRING,
GRENZEOB1 TYPE STRING,
GRENZOB1NI TYPE STRING,
GRENZEUN1 TYPE STRING,
GRENZUN1NI TYPE STRING,
GRENZEOB2 TYPE STRING,
GRENZOB2NI TYPE STRING,
GRENZEUN2 TYPE STRING,
GRENZUN2NI TYPE STRING,
PLAUSIOBEN TYPE STRING,
PLAUSIOBNI TYPE STRING,
PLAUSIUNTE TYPE STRING,
PLAUSIUNNI TYPE STRING,
TOLERWEIOB TYPE STRING,
TOLWOBNI TYPE STRING,
TOLERWEIUN TYPE STRING,
TOLWUNNI TYPE STRING,
TOLERWAB TYPE STRING,
TOLERWBIS TYPE STRING,
CODEGR9U TYPE STRING,
CODE9U TYPE STRING,
CODEVR9U TYPE STRING,
CODEGR9O TYPE STRING,
CODE9O TYPE STRING,
CODEVR9O TYPE STRING,
ATINN TYPE STRING,
EEANTVERF TYPE STRING,
CODEGRQUAL TYPE STRING,
CODEQUAL TYPE STRING,
INPPROC TYPE STRING,
SPEC_DET_RULE TYPE STRING,
SPEC_DET_ACTIVE TYPE STRING,
PARAMETER1 TYPE STRING,
PARAMETER2 TYPE STRING,
DUMMY_QPMK_INCL_EEW_PS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_QPMK_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_QPMK_STR-MANDT sy-vline 
WA_QPMK_STR-ZAEHLER sy-vline 
WA_QPMK_STR-MKMNR sy-vline 
WA_QPMK_STR-VERSION sy-vline 
WA_QPMK_STR-WERKS sy-vline 
WA_QPMK_STR-GUELTIGAB sy-vline 
WA_QPMK_STR-SORTFELD sy-vline 
WA_QPMK_STR-CHARACT_ID1 sy-vline 
WA_QPMK_STR-LOEKZ sy-vline 
WA_QPMK_STR-LSPER sy-vline 
WA_QPMK_STR-KONSISTENT sy-vline 
WA_QPMK_STR-AUTOR sy-vline 
WA_QPMK_STR-DATES sy-vline 
WA_QPMK_STR-AEAUT sy-vline 
WA_QPMK_STR-DATAE sy-vline 
WA_QPMK_STR-CHANGEDDATETIME sy-vline 
WA_QPMK_STR-STEUERKZ sy-vline 
WA_QPMK_STR-MERKGEW sy-vline 
WA_QPMK_STR-PRFQL sy-vline 
WA_QPMK_STR-DUMMY10 sy-vline 
WA_QPMK_STR-DUMMY20 sy-vline 
WA_QPMK_STR-DUMMY40 sy-vline 
WA_QPMK_STR-QAUTH sy-vline 
WA_QPMK_STR-TOLERANZSL sy-vline 
WA_QPMK_STR-STELLEN sy-vline 
WA_QPMK_STR-MASSEINHSW sy-vline 
WA_QPMK_STR-SOLLWERT sy-vline 
WA_QPMK_STR-SOLLWNI sy-vline 
WA_QPMK_STR-TOLERANZOB sy-vline 
WA_QPMK_STR-TOLOBNI sy-vline 
WA_QPMK_STR-TOLERANZUN sy-vline 
WA_QPMK_STR-TOLUNNI sy-vline 
WA_QPMK_STR-KLASANZAHL sy-vline 
WA_QPMK_STR-KLASBREITE sy-vline 
WA_QPMK_STR-KLASBRNI sy-vline 
WA_QPMK_STR-KLASMITTE sy-vline 
WA_QPMK_STR-KLASMINI sy-vline 
WA_QPMK_STR-GRENZEOB1 sy-vline 
WA_QPMK_STR-GRENZOB1NI sy-vline 
WA_QPMK_STR-GRENZEUN1 sy-vline 
WA_QPMK_STR-GRENZUN1NI sy-vline 
WA_QPMK_STR-GRENZEOB2 sy-vline 
WA_QPMK_STR-GRENZOB2NI sy-vline 
WA_QPMK_STR-GRENZEUN2 sy-vline 
WA_QPMK_STR-GRENZUN2NI sy-vline 
WA_QPMK_STR-PLAUSIOBEN sy-vline 
WA_QPMK_STR-PLAUSIOBNI sy-vline 
WA_QPMK_STR-PLAUSIUNTE sy-vline 
WA_QPMK_STR-PLAUSIUNNI sy-vline 
WA_QPMK_STR-TOLERWEIOB sy-vline 
WA_QPMK_STR-TOLWOBNI sy-vline 
WA_QPMK_STR-TOLERWEIUN sy-vline 
WA_QPMK_STR-TOLWUNNI sy-vline 
WA_QPMK_STR-TOLERWAB sy-vline 
WA_QPMK_STR-TOLERWBIS sy-vline 
WA_QPMK_STR-CODEGR9U sy-vline 
WA_QPMK_STR-CODE9U sy-vline 
WA_QPMK_STR-CODEVR9U sy-vline 
WA_QPMK_STR-CODEGR9O sy-vline 
WA_QPMK_STR-CODE9O sy-vline 
WA_QPMK_STR-CODEVR9O sy-vline 
WA_QPMK_STR-ATINN sy-vline 
WA_QPMK_STR-EEANTVERF sy-vline 
WA_QPMK_STR-CODEGRQUAL sy-vline 
WA_QPMK_STR-CODEQUAL sy-vline 
WA_QPMK_STR-INPPROC sy-vline 
WA_QPMK_STR-SPEC_DET_RULE sy-vline 
WA_QPMK_STR-SPEC_DET_ACTIVE sy-vline 
WA_QPMK_STR-PARAMETER1 sy-vline 
WA_QPMK_STR-PARAMETER2 sy-vline 
WA_QPMK_STR-DUMMY_QPMK_INCL_EEW_PS sy-vline      INTO ld_text SEPARATED BY SPACE.

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