ABAP Select data from SAP table BKKMPARUNHD into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BKKMPARUNHD
*  INTO TABLE @DATA(IT_BKKMPARUNHD2).
*--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_BKKMPARUNHD INDEX 1 INTO DATA(WA_BKKMPARUNHD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BKKMPARUNHD>-MANDT = 1.
<BKKMPARUNHD>-PROGN = 1.
<BKKMPARUNHD>-PROGDATE = 1.
<BKKMPARUNHD>-PROGNO = 1.
<BKKMPARUNHD>-APPLCATG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BKKMPARUNHD-CURRSTARTNO, sy-vline,
  WA_BKKMPARUNHD-REALSTARTNO, sy-vline,
  WA_BKKMPARUNHD-RUNUSER, sy-vline,
  WA_BKKMPARUNHD-RUNDATE, sy-vline,
  WA_BKKMPARUNHD-RUNTIME, sy-vline,
  WA_BKKMPARUNHD-RUN_TSTAMPS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BKKMPARUNHD 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_BKKMPARUNHD 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_BKKMPARUNHD INTO WA_BKKMPARUNHD.


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

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

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

*Conversion exit ALPHA, internal->external for field CALLERREPNO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BKKMPARUNHD-CALLERREPNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BKKMPARUNHD-CALLERREPNO.
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_BKKMPARUNHD_STR, 
MANDT TYPE STRING,
PROGN TYPE STRING,
PROGDATE TYPE STRING,
PROGNO TYPE STRING,
APPLCATG TYPE STRING,
CURRSTARTNO TYPE STRING,
REALSTARTNO TYPE STRING,
RUNUSER TYPE STRING,
RUNDATE TYPE STRING,
RUNTIME TYPE STRING,
RUN_TSTAMPS TYPE STRING,
CALLERLAUFD TYPE STRING,
CALLERLAUFI TYPE STRING,
CALLERREPNO TYPE STRING,
CURRSTEPNO TYPE STRING,
CURRMAXSTEPNO TYPE STRING,
MAXSTEPNO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BKKMPARUNHD_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_BKKMPARUNHD_STR-MANDT sy-vline 
WA_BKKMPARUNHD_STR-PROGN sy-vline 
WA_BKKMPARUNHD_STR-PROGDATE sy-vline 
WA_BKKMPARUNHD_STR-PROGNO sy-vline 
WA_BKKMPARUNHD_STR-APPLCATG sy-vline 
WA_BKKMPARUNHD_STR-CURRSTARTNO sy-vline 
WA_BKKMPARUNHD_STR-REALSTARTNO sy-vline 
WA_BKKMPARUNHD_STR-RUNUSER sy-vline 
WA_BKKMPARUNHD_STR-RUNDATE sy-vline 
WA_BKKMPARUNHD_STR-RUNTIME sy-vline 
WA_BKKMPARUNHD_STR-RUN_TSTAMPS sy-vline 
WA_BKKMPARUNHD_STR-CALLERLAUFD sy-vline 
WA_BKKMPARUNHD_STR-CALLERLAUFI sy-vline 
WA_BKKMPARUNHD_STR-CALLERREPNO sy-vline 
WA_BKKMPARUNHD_STR-CURRSTEPNO sy-vline 
WA_BKKMPARUNHD_STR-CURRMAXSTEPNO sy-vline 
WA_BKKMPARUNHD_STR-MAXSTEPNO sy-vline      INTO ld_text SEPARATED BY SPACE.

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