ABAP Select data from SAP table QFAAB 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 QFAAB 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 QFAAB. 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 QFAAB 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_QFAAB TYPE STANDARD TABLE OF QFAAB,
      WA_QFAAB TYPE QFAAB,
      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: <QFAAB> TYPE QFAAB.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM QFAAB
*  INTO TABLE @DATA(IT_QFAAB2).
*--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_QFAAB INDEX 1 INTO DATA(WA_QFAAB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<QFAAB>-SERIALNR = 1.
<QFAAB>-QMNUM = 1.
<QFAAB>-TMP = 1.
<QFAAB>-FEART = 1.
<QFAAB>-PNLKN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_QFAAB-MERKNR, sy-vline,
  WA_QFAAB-FENUM, sy-vline,
  WA_QFAAB-PROBENR, sy-vline,
  WA_QFAAB-POSNR, sy-vline,
  WA_QFAAB-PHYNR, sy-vline,
  WA_QFAAB-OBJNR_PVO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_QFAAB 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_QFAAB 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_QFAAB INTO WA_QFAAB.


*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_QFAAB-SERIALNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QFAAB-SERIALNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit MATN1, internal->external for field BAUTL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_QFAAB-BAUTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QFAAB-BAUTL.
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_QFAAB_STR, 
SERIALNR TYPE STRING,
QMNUM TYPE STRING,
TMP TYPE STRING,
FEART TYPE STRING,
PNLKN TYPE STRING,
MERKNR TYPE STRING,
FENUM TYPE STRING,
PROBENR TYPE STRING,
POSNR TYPE STRING,
PHYNR TYPE STRING,
OBJNR_PVO TYPE STRING,
DET_VORH TYPE STRING,
FEKAT TYPE STRING,
TXTGR TYPE STRING,
TXTCD TYPE STRING,
TXTCDGR TYPE STRING,
DET_FEHLER TYPE STRING,
OTKAT TYPE STRING,
TXTGROT TYPE STRING,
TXTCDOT TYPE STRING,
TXTCDGROT TYPE STRING,
DET_ORT TYPE STRING,
DET_URSA TYPE STRING,
DET_MASSN TYPE STRING,
INDTX TYPE STRING,
KZMLA TYPE STRING,
UNITFLBEW TYPE STRING,
MSEHT TYPE STRING,
KZSYSFE TYPE STRING,
AEKNZ TYPE STRING,
HERPOS TYPE STRING,
FECOD TYPE STRING,
FEGRP TYPE STRING,
FEQKLAS TYPE STRING,
FEHLKLTEXT TYPE STRING,
ANZFEHLER TYPE STRING,
FETXT TYPE STRING,
OTEIL TYPE STRING,
OTGRP TYPE STRING,
OTTXT TYPE STRING,
FRKLS TYPE STRING,
KLTXT TYPE STRING,
BAUTL TYPE STRING,
BAUTX TYPE STRING,
FEHLBEW TYPE STRING,
FEHLBEWC TYPE STRING,
LAST_URNUM TYPE STRING,
CONTROL TYPE STRING,
PRUEFER TYPE STRING,
PRUEFDATUV TYPE STRING,
PRUEFZEITV TYPE STRING,
CROBJTY TYPE STRING,
ARBPL TYPE STRING,
ARBPLWERK TYPE STRING,
FENUMORG TYPE STRING,
ERNAM TYPE STRING,
ERDAT TYPE STRING,
ERZEIT TYPE STRING,
AENAM TYPE STRING,
AEDAT TYPE STRING,
AEZEIT TYPE STRING,
PRE_DEL TYPE STRING,
OA_ID TYPE STRING,
OA_VERSION_NO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_QFAAB_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_QFAAB_STR-SERIALNR sy-vline 
WA_QFAAB_STR-QMNUM sy-vline 
WA_QFAAB_STR-TMP sy-vline 
WA_QFAAB_STR-FEART sy-vline 
WA_QFAAB_STR-PNLKN sy-vline 
WA_QFAAB_STR-MERKNR sy-vline 
WA_QFAAB_STR-FENUM sy-vline 
WA_QFAAB_STR-PROBENR sy-vline 
WA_QFAAB_STR-POSNR sy-vline 
WA_QFAAB_STR-PHYNR sy-vline 
WA_QFAAB_STR-OBJNR_PVO sy-vline 
WA_QFAAB_STR-DET_VORH sy-vline 
WA_QFAAB_STR-FEKAT sy-vline 
WA_QFAAB_STR-TXTGR sy-vline 
WA_QFAAB_STR-TXTCD sy-vline 
WA_QFAAB_STR-TXTCDGR sy-vline 
WA_QFAAB_STR-DET_FEHLER sy-vline 
WA_QFAAB_STR-OTKAT sy-vline 
WA_QFAAB_STR-TXTGROT sy-vline 
WA_QFAAB_STR-TXTCDOT sy-vline 
WA_QFAAB_STR-TXTCDGROT sy-vline 
WA_QFAAB_STR-DET_ORT sy-vline 
WA_QFAAB_STR-DET_URSA sy-vline 
WA_QFAAB_STR-DET_MASSN sy-vline 
WA_QFAAB_STR-INDTX sy-vline 
WA_QFAAB_STR-KZMLA sy-vline 
WA_QFAAB_STR-UNITFLBEW sy-vline 
WA_QFAAB_STR-MSEHT sy-vline 
WA_QFAAB_STR-KZSYSFE sy-vline 
WA_QFAAB_STR-AEKNZ sy-vline 
WA_QFAAB_STR-HERPOS sy-vline 
WA_QFAAB_STR-FECOD sy-vline 
WA_QFAAB_STR-FEGRP sy-vline 
WA_QFAAB_STR-FEQKLAS sy-vline 
WA_QFAAB_STR-FEHLKLTEXT sy-vline 
WA_QFAAB_STR-ANZFEHLER sy-vline 
WA_QFAAB_STR-FETXT sy-vline 
WA_QFAAB_STR-OTEIL sy-vline 
WA_QFAAB_STR-OTGRP sy-vline 
WA_QFAAB_STR-OTTXT sy-vline 
WA_QFAAB_STR-FRKLS sy-vline 
WA_QFAAB_STR-KLTXT sy-vline 
WA_QFAAB_STR-BAUTL sy-vline 
WA_QFAAB_STR-BAUTX sy-vline 
WA_QFAAB_STR-FEHLBEW sy-vline 
WA_QFAAB_STR-FEHLBEWC sy-vline 
WA_QFAAB_STR-LAST_URNUM sy-vline 
WA_QFAAB_STR-CONTROL sy-vline 
WA_QFAAB_STR-PRUEFER sy-vline 
WA_QFAAB_STR-PRUEFDATUV sy-vline 
WA_QFAAB_STR-PRUEFZEITV sy-vline 
WA_QFAAB_STR-CROBJTY sy-vline 
WA_QFAAB_STR-ARBPL sy-vline 
WA_QFAAB_STR-ARBPLWERK sy-vline 
WA_QFAAB_STR-FENUMORG sy-vline 
WA_QFAAB_STR-ERNAM sy-vline 
WA_QFAAB_STR-ERDAT sy-vline 
WA_QFAAB_STR-ERZEIT sy-vline 
WA_QFAAB_STR-AENAM sy-vline 
WA_QFAAB_STR-AEDAT sy-vline 
WA_QFAAB_STR-AEZEIT sy-vline 
WA_QFAAB_STR-PRE_DEL sy-vline 
WA_QFAAB_STR-OA_ID sy-vline 
WA_QFAAB_STR-OA_VERSION_NO sy-vline      INTO ld_text SEPARATED BY SPACE.

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