ABAP Select data from SAP table QMIFED 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 QMIFED 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 QMIFED. 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 QMIFED 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_QMIFED TYPE STANDARD TABLE OF QMIFED,
      WA_QMIFED TYPE QMIFED,
      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: <QMIFED> TYPE QMIFED.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM QMIFED
*  INTO TABLE @DATA(IT_QMIFED2).
*--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_QMIFED INDEX 1 INTO DATA(WA_QMIFED2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<QMIFED>-POSNR = 1.
<QMIFED>-FEKAT = 1.
<QMIFED>-FEGRP = 1.
<QMIFED>-FECOD = 1.
<QMIFED>-SERIALNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_QMIFED-ANZFEHLER, sy-vline,
  WA_QMIFED-FEQKLAS, sy-vline,
  WA_QMIFED-KZSYSFE, sy-vline,
  WA_QMIFED-OTKAT, sy-vline,
  WA_QMIFED-OTGRP, sy-vline,
  WA_QMIFED-OTEIL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_QMIFED 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_QMIFED 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_QMIFED INTO WA_QMIFED.


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

*Conversion exit MATN5, internal->external for field BAUTL
CALL FUNCTION 'CONVERSION_EXIT_MATN5_OUTPUT'
  EXPORTING
    input =                      WA_QMIFED-BAUTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QMIFED-BAUTL.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit MATN1, internal->external for field BAUTL_LONG
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_QMIFED-BAUTL_LONG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QMIFED-BAUTL_LONG.
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_QMIFED_STR, 
POSNR TYPE STRING,
FEKAT TYPE STRING,
FEGRP TYPE STRING,
FECOD TYPE STRING,
SERIALNR TYPE STRING,
ANZFEHLER TYPE STRING,
FEQKLAS TYPE STRING,
KZSYSFE TYPE STRING,
OTKAT TYPE STRING,
OTGRP TYPE STRING,
OTEIL TYPE STRING,
FETXT TYPE STRING,
BAUTL TYPE STRING,
FEHLBEW TYPE STRING,
UNITFLBEW TYPE STRING,
FENAM TYPE STRING,
FEDAT TYPE STRING,
FZEIT TYPE STRING,
BAUTL_LONG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_QMIFED_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_QMIFED_STR-POSNR sy-vline 
WA_QMIFED_STR-FEKAT sy-vline 
WA_QMIFED_STR-FEGRP sy-vline 
WA_QMIFED_STR-FECOD sy-vline 
WA_QMIFED_STR-SERIALNR sy-vline 
WA_QMIFED_STR-ANZFEHLER sy-vline 
WA_QMIFED_STR-FEQKLAS sy-vline 
WA_QMIFED_STR-KZSYSFE sy-vline 
WA_QMIFED_STR-OTKAT sy-vline 
WA_QMIFED_STR-OTGRP sy-vline 
WA_QMIFED_STR-OTEIL sy-vline 
WA_QMIFED_STR-FETXT sy-vline 
WA_QMIFED_STR-BAUTL sy-vline 
WA_QMIFED_STR-FEHLBEW sy-vline 
WA_QMIFED_STR-UNITFLBEW sy-vline 
WA_QMIFED_STR-FENAM sy-vline 
WA_QMIFED_STR-FEDAT sy-vline 
WA_QMIFED_STR-FZEIT sy-vline 
WA_QMIFED_STR-BAUTL_LONG sy-vline      INTO ld_text SEPARATED BY SPACE.

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