ABAP Select data from SAP table DFKKQSR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DFKKQSR
*  INTO TABLE @DATA(IT_DFKKQSR2).
*--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_DFKKQSR INDEX 1 INTO DATA(WA_DFKKQSR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DFKKQSR>-MANDT = 1.
<DFKKQSR>-OPBEL = 1.
<DFKKQSR>-OPUPQ = 1.
<DFKKQSR>-BUDAT = 1.
<DFKKQSR>-BUKRS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DFKKQSR-HKONT, sy-vline,
  WA_DFKKQSR-GSBER, sy-vline,
  WA_DFKKQSR-BUPLA, sy-vline,
  WA_DFKKQSR-PRCTR, sy-vline,
  WA_DFKKQSR-QSSKZ, sy-vline,
  WA_DFKKQSR-QSSEW, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DFKKQSR 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_DFKKQSR 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_DFKKQSR INTO WA_DFKKQSR.


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

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

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

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

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

*Conversion exit ALPHA, internal->external for field VTREF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_DFKKQSR-VTREF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DFKKQSR-VTREF.
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_DFKKQSR_STR, 
MANDT TYPE STRING,
OPBEL TYPE STRING,
OPUPQ TYPE STRING,
BUDAT TYPE STRING,
BUKRS TYPE STRING,
HKONT TYPE STRING,
GSBER TYPE STRING,
BUPLA TYPE STRING,
PRCTR TYPE STRING,
QSSKZ TYPE STRING,
QSSEW TYPE STRING,
QSZNR TYPE STRING,
QSATZ TYPE STRING,
BETRH TYPE STRING,
BETRW TYPE STRING,
SBASW TYPE STRING,
SBASH TYPE STRING,
WAERS TYPE STRING,
HWAER TYPE STRING,
GPART TYPE STRING,
VKONT TYPE STRING,
VTREF TYPE STRING,
SUBAP TYPE STRING,
KTOSL TYPE STRING,
XALLA TYPE STRING,
PRLQS TYPE STRING,
PRLPZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DFKKQSR_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_DFKKQSR_STR-MANDT sy-vline 
WA_DFKKQSR_STR-OPBEL sy-vline 
WA_DFKKQSR_STR-OPUPQ sy-vline 
WA_DFKKQSR_STR-BUDAT sy-vline 
WA_DFKKQSR_STR-BUKRS sy-vline 
WA_DFKKQSR_STR-HKONT sy-vline 
WA_DFKKQSR_STR-GSBER sy-vline 
WA_DFKKQSR_STR-BUPLA sy-vline 
WA_DFKKQSR_STR-PRCTR sy-vline 
WA_DFKKQSR_STR-QSSKZ sy-vline 
WA_DFKKQSR_STR-QSSEW sy-vline 
WA_DFKKQSR_STR-QSZNR sy-vline 
WA_DFKKQSR_STR-QSATZ sy-vline 
WA_DFKKQSR_STR-BETRH sy-vline 
WA_DFKKQSR_STR-BETRW sy-vline 
WA_DFKKQSR_STR-SBASW sy-vline 
WA_DFKKQSR_STR-SBASH sy-vline 
WA_DFKKQSR_STR-WAERS sy-vline 
WA_DFKKQSR_STR-HWAER sy-vline 
WA_DFKKQSR_STR-GPART sy-vline 
WA_DFKKQSR_STR-VKONT sy-vline 
WA_DFKKQSR_STR-VTREF sy-vline 
WA_DFKKQSR_STR-SUBAP sy-vline 
WA_DFKKQSR_STR-KTOSL sy-vline 
WA_DFKKQSR_STR-XALLA sy-vline 
WA_DFKKQSR_STR-PRLQS sy-vline 
WA_DFKKQSR_STR-PRLPZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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