ABAP Select data from SAP table BKKMREPORTS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BKKMREPORTS
*  INTO TABLE @DATA(IT_BKKMREPORTS2).
*--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_BKKMREPORTS INDEX 1 INTO DATA(WA_BKKMREPORTS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BKKMREPORTS>-MANDT = 1.
<BKKMREPORTS>-LAUFD = 1.
<BKKMREPORTS>-LAUFI = 1.
<BKKMREPORTS>-REPNO = 1.
<BKKMREPORTS>-REPORT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BKKMREPORTS-TREPORT, sy-vline,
  WA_BKKMREPORTS-VARI, sy-vline,
  WA_BKKMREPORTS-REPNO_PRED, sy-vline,
  WA_BKKMREPORTS-XNOWAIT, sy-vline,
  WA_BKKMREPORTS-XREST_ALLOWED, sy-vline,
  WA_BKKMREPORTS-PROGN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BKKMREPORTS 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_BKKMREPORTS 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_BKKMREPORTS INTO WA_BKKMREPORTS.


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

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

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

*Conversion exit ALPHA, internal->external for field CNTREPSTARTS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BKKMREPORTS-CNTREPSTARTS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BKKMREPORTS-CNTREPSTARTS.
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_BKKMREPORTS_STR, 
MANDT TYPE STRING,
LAUFD TYPE STRING,
LAUFI TYPE STRING,
REPNO TYPE STRING,
REPORT TYPE STRING,
TREPORT TYPE STRING,
VARI TYPE STRING,
REPNO_PRED TYPE STRING,
XNOWAIT TYPE STRING,
XREST_ALLOWED TYPE STRING,
PROGN TYPE STRING,
PROGDATE TYPE STRING,
PROGNO TYPE STRING,
JOBNAME TYPE STRING,
JOBCOUNT TYPE STRING,
CNTREPSTARTS TYPE STRING,
REPSTATUS TYPE STRING,
RETURNCODE TYPE STRING,
XSTOP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BKKMREPORTS_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_BKKMREPORTS_STR-MANDT sy-vline 
WA_BKKMREPORTS_STR-LAUFD sy-vline 
WA_BKKMREPORTS_STR-LAUFI sy-vline 
WA_BKKMREPORTS_STR-REPNO sy-vline 
WA_BKKMREPORTS_STR-REPORT sy-vline 
WA_BKKMREPORTS_STR-TREPORT sy-vline 
WA_BKKMREPORTS_STR-VARI sy-vline 
WA_BKKMREPORTS_STR-REPNO_PRED sy-vline 
WA_BKKMREPORTS_STR-XNOWAIT sy-vline 
WA_BKKMREPORTS_STR-XREST_ALLOWED sy-vline 
WA_BKKMREPORTS_STR-PROGN sy-vline 
WA_BKKMREPORTS_STR-PROGDATE sy-vline 
WA_BKKMREPORTS_STR-PROGNO sy-vline 
WA_BKKMREPORTS_STR-JOBNAME sy-vline 
WA_BKKMREPORTS_STR-JOBCOUNT sy-vline 
WA_BKKMREPORTS_STR-CNTREPSTARTS sy-vline 
WA_BKKMREPORTS_STR-REPSTATUS sy-vline 
WA_BKKMREPORTS_STR-RETURNCODE sy-vline 
WA_BKKMREPORTS_STR-XSTOP sy-vline      INTO ld_text SEPARATED BY SPACE.

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