ABAP Select data from SAP table DFKKPPD_PAY_HIS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DFKKPPD_PAY_HIS
*  INTO TABLE @DATA(IT_DFKKPPD_PAY_HIS2).
*--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_DFKKPPD_PAY_HIS INDEX 1 INTO DATA(WA_DFKKPPD_PAY_HIS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DFKKPPD_PAY_HIS>-MANDT = 1.
<DFKKPPD_PAY_HIS>-PPKEY = 1.
<DFKKPPD_PAY_HIS>-PRDAT = 1.
<DFKKPPD_PAY_HIS>-AEDAT = 1.
<DFKKPPD_PAY_HIS>-AETIM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DFKKPPD_PAY_HIS-AENAM, sy-vline,
  WA_DFKKPPD_PAY_HIS-VKONT, sy-vline,
  WA_DFKKPPD_PAY_HIS-PYMET, sy-vline,
  WA_DFKKPPD_PAY_HIS-EMBVT, sy-vline,
  WA_DFKKPPD_PAY_HIS-EMCRD, sy-vline,
  WA_DFKKPPD_PAY_HIS-EMGPA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DFKKPPD_PAY_HIS 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_DFKKPPD_PAY_HIS 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_DFKKPPD_PAY_HIS INTO WA_DFKKPPD_PAY_HIS.


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

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

*Conversion exit ALPHA, internal->external for field EMGPA
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_DFKKPPD_PAY_HIS-EMGPA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DFKKPPD_PAY_HIS-EMGPA.
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_DFKKPPD_PAY_HIS_STR, 
MANDT TYPE STRING,
PPKEY TYPE STRING,
PRDAT TYPE STRING,
AEDAT TYPE STRING,
AETIM TYPE STRING,
AENAM TYPE STRING,
VKONT TYPE STRING,
PYMET TYPE STRING,
EMBVT TYPE STRING,
EMCRD TYPE STRING,
EMGPA TYPE STRING,
CCINS TYPE STRING,
CCNUM TYPE STRING,
DATBI TYPE STRING,
CCNAME TYPE STRING,
EMMND TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DFKKPPD_PAY_HIS_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_DFKKPPD_PAY_HIS_STR-MANDT sy-vline 
WA_DFKKPPD_PAY_HIS_STR-PPKEY sy-vline 
WA_DFKKPPD_PAY_HIS_STR-PRDAT sy-vline 
WA_DFKKPPD_PAY_HIS_STR-AEDAT sy-vline 
WA_DFKKPPD_PAY_HIS_STR-AETIM sy-vline 
WA_DFKKPPD_PAY_HIS_STR-AENAM sy-vline 
WA_DFKKPPD_PAY_HIS_STR-VKONT sy-vline 
WA_DFKKPPD_PAY_HIS_STR-PYMET sy-vline 
WA_DFKKPPD_PAY_HIS_STR-EMBVT sy-vline 
WA_DFKKPPD_PAY_HIS_STR-EMCRD sy-vline 
WA_DFKKPPD_PAY_HIS_STR-EMGPA sy-vline 
WA_DFKKPPD_PAY_HIS_STR-CCINS sy-vline 
WA_DFKKPPD_PAY_HIS_STR-CCNUM sy-vline 
WA_DFKKPPD_PAY_HIS_STR-DATBI sy-vline 
WA_DFKKPPD_PAY_HIS_STR-CCNAME sy-vline 
WA_DFKKPPD_PAY_HIS_STR-EMMND sy-vline      INTO ld_text SEPARATED BY SPACE.

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